Evaluation of Tubular Adhesively-Bonded Joints under Torsion | Chapter 9 | Research and Developments in Engineering Research Vol. 6

 This work acts a numerical study so that compare the torsional performance of three adhesive, in aluminium tubular joints (AW6082-T651), taking everything in mind the variation of the main geometric limits, such as overlie length (LO) and tubes’ thickness. The growing demand for light weight, excellence and more cost effective product has influenced adhesive fastening to emerge as one of the basic ways of catch structural members. Adhesive cheap hangouts have been earlier been designed tentatively but now moment of truth's data is available to design sticking joints in an best way. In order to envision the strength, the Finite Element Method (FEM) was used accompanying Cohesive Zone Models (CZM), whose analysis located itself on the internal stresses of the adhesive, that is to say the analysis of clip stress (txy) and joint strength, measured for one maximum torsional moment (Mm). To administer the torsion load, a reference point was conceived in the middle of television set and it was connected to the cross-sectional face converging joint end, which admitted applying a torsional angle boundary condition and accordingly performing the tests. The joint meshes were erected after defining the mesh sizes in each edge of the model. Previously, confirmation with exploratory data was carried out. The method was positively justified, and a significant geometry on Mm was erect, except for LO.

Author(s) Details:

T. J. S. Oliveira,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

M. S. Kirgiz,
Department of Civil Engineering, Faculty of Engineering and Architecture, T.C. istanbul Gelisim University, Avcilar, istanbul 34310, Turkiye.

M. V. Kumar,
Department of Civil Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, India.

R. Alzein,
Department of Civil Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, India.

Please see the link here: https://stm.bookpi.org/RADER-V6/article/view/11557

Modelling of Bonded Tubular Scarf Joints by the Cohesive Zone Approach | Chapter 13 | Research Highlights in Science and Technology Vol. 3

 Tubular sticking connections are mainly subjected to in the middle or torsional loads. Under axial loads, tubular lap joints (TLJ) bring about peak stresses in the adhesive similarly to single-lap cheap hangouts. An alternative to mitigate peak stresses search out consider a tubular kerchief joint (TSJ). This joint enables joining tubes accompanying identical diameters, and the chamfer arithmetic provides a abundant bonding district, if the scarf angle (a) is adequately small. The proposed work is chiefly numerical, and it addresses the pliable behaviour of TSJ between aluminium alloy adherends, and a 'tween 45° and 3.43°, considering various adhesive types. Initial confirmation of the cohesive zone model (CZM) is gifted by comparing exploratory and numerical dossier of TLJ. The numerical CZM study that trails addresses the failure way and maximum load (Pm), as a function of a and the adhesive type. The CZM was successfully endorsed, and clear guidelines were establish regarding highest in rank a and adhesive mergers.

Author(s) Details:

J. E. S. M. Silva,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/RHST-V3/article/view/10764

Numerical Investigation of the Application of Cohesive Zone Models for Impact Strength Evaluation of Adhesive Bonded Joints | Chapter 7 | Research Highlights in Science and Technology Vol. 3

 To be smart to evaluate the act and strength of an sticking joint, numerical methods based on the Finite Element Method (FEM) are used. In authentic cases, adhesive intersections are also commit dynamic loads, to a degree impact. This work aims to predict the behaviour and substance of double-lap composite adhesive cheap hangouts under impact loads, under different ride lengths (LO). For this purpose, numerical simulations by FEM and close-knit zone models (CZM) are considered. The adhesive used for this mathematical study are the Araldite® AV138 and the Sikaforce® 7752. As adherend, the pre-preg Seal® Texipreg HS 160 RM was used. Initially, a study was completed activity with distinct-lap joint (SLJ) experimental dossier, to validate the projected technique for analysing impact-sticking joints. Double-lap joint (DLJ) reasoning was based on elastic peel (sy) and clip (txy) stresses, and strength guess. Validation of the proposed mathematical technique was favorably accomplished to model shackled joints under impact loads. Between the proven adhesives, hard and strong adhesive work better under impact, leading to higher efficiency, although greater LO than those tested in this place work can benefit from less strong but more flexible adhesives.

Author(s) Details:

L. A. R. Gomes,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

J. P. A. Valente,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/RHST-V3/article/view/10757

Calculation Approach for the Design of Adhesive Joints under Predominant Peel | Chapter 3 | Research Highlights in Science and Technology Vol. 3

 There are now different guaranteed joint geometries that the designer can choose from, containing the single-lap joint, double-lap joint, walked-joint, scarf joint, and tubular joint. Other geometries are designed to maintain peel loads, such as T-intersections and L-joints. T-joints are secondhand in different synopsises, including in aircraft (something that holds up structure/skin joints) and in instruments (B-pillar/person who produces music joints). The present work consists of a mathematical analysis on the sticking type effect in aluminium T-joints under peel loads, by cohesive district modelling (CZM). However, CZM confirmation is previously accomplished. The junctures’ assessment introduces with stress analysis, and prognosis of maximum load (Pm), while geometrical modifications are too tested, to authorize proposing the best resolution for the joint. CZM revealed expected an accurate tool for these intersections, and a significant lines and adhesive influence was detected on the joint conduct, which authorized to propose the best joint answer.

Author(s) Details:

J. P. M. Lopes,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/RHST-V3/article/view/10753

Shear Fracture Behaviour of Bonded Joints by Application of the Direct Integration Method | Chapter 4 | Research and Developments in Engineering Research Vol. 4

 The cut fracture toughness (Gsc) and CZM societies of bonded cheap hangouts were investigated in this study. This was adept using completely-Notched  Flexure (ENF) test geometry. Design can be equip toward lighter constructions utilizing adhesive bonding, not only by way of the immediate burden saving advantages of the links over fastened or welded joints, but still because  of the adaptability to link diverse materials. Cohesive Zone Models (CZM) are a forceful design tool, but they demand the CZM laws of the adhesive bond in tightness and shear as recommendation. The experimental effort complicated characterizing the bond's shear rupture using common and J-integral approaches. Furthermore, the precise arithmetic of the cohesive standard was established using the J-basic technique. Numerical Finite Element (FE) simulations in Abaqus® were acted to assess the correctness of the create CZM laws in envisioning the experimental behavior of the ENF tests, and the verdicts were positive.  The CZM laws of the proven adhesive told a good agreement between examples. As a result of this work, fracture facts in shear for the chosen sticking is provided, permissive the subsequent strength prognosis of bonded cheap hangouts.

Author(s) Details:

R. L. Fernandes,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/RADER-V4/article/view/10741

Bonded Joint Strength Prediction by the Inverse Method| Chapter 2 | Techniques and Innovation in Engineering Research and Technology Vol. 5

 High performance fundamental adhesive are now being used often in the car subdivision to decrease bus weight and enhance the crash fighting of automotive buildings. The souped up adhesives secondhand in the car subdivision must able to have or do endure weighty active loads apart from bearing extreme mechanical substance so that meet these necessities.   Because of their difficult behaviour, the design process required to generate constructions accompanying these fabrics necessitates a all-encompassing understanding of their machinelike features. In this work, the machinelike features of a structural gluing, Sikapower® 4720, were persistent. Tensile tests were acted to decide the Young’s modulus (E) and tensile strength (σf). Shear tests were acted to decide the clip modulus (G) and the cut strength (Tf). Tests were still completed activity to decide the sticking's toughness. For manner I determination perseverance (GIc), the Double-Cantilever Beam (DCB) test was working. For decision of toughness under way II (GIIc), completely-Notched Flexure (ENF) test was acted. The test verdicts were able to wholly automatically delimit the sticking and show that it not only has strong machinelike substance but too a large size of ductility.

Author(s) Details:

F. A. L. Viana,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.

R. J. B. Rocha,
Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/TAIERT-V5/article/view/9053

A Comprehensive Experimental Study on Bi-Adhesive Technique Applied to Structural T-Joints | Chapter 3 | Techniques and Innovation in Engineering Research Vol. 1

 T-joints are employed in a variety of industries, including the automotive, marine, and aerospace sectors. The bi-adhesive technique, which uses two adhesives and places a harder adhesive in the centre and a more flexible one at the overlap ends, is examined in this paper. The effectiveness of this approach in T-joints was tested using various adhesive ratios. A numerical research was conducted utilising the CZM technique in the ABAQUS® software to assess this idea. It included an examination of failure modes, stresses, strength or maximum load (Pm), and dissipated energy (U). Using the current work, the CZM approach was originally confirmed through experimental findings. The numerical work that followed showed that it is possible to raise Pm and U in comparison to single-adhesive joints and that the strength of T-joints is strongly dependant on the adhesive mixture utilised.

Author(s) Details:

P. M. D. Carvalho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

I. J. Sánchez-Arce,
INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

R. J. B. Rocha,
INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

A. R. F. Soares,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/TAIER-V1/article/view/8174

Impact Analysis of Composite Adhesive Joints by CZM Modelling| Chapter 11 | Current Overview on Science and Technology Research Vol. 2

 Firm zone models (CZM) have been utilized to decide the strength of cement joints and to reenact the development of harm in structures following the meaning of the strong regulations. This work studies the different CZM conditions used to demonstrate a glue layer in a solitary lap joint (SLJ) exposed to influence stacking. In this review, four cross-over lengths (LO) were thought of. The assessed displaying conditions were the decoupling of stacking modes with three-sided regulation, durable regulation shape, harm inception models and harm engendering standard. The mathematical examination considered a definite comprehension of what the displaying boundaries utilized in the strong models meant for the results.

Author(s) Details:

T. F. C. Pereira,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

R. J. B. Rocha,
INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

I. J. Sánchez-Arce,
INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/COSTR-V2/article/view/7997

Geometry Effect on the Tensile Behaviour of Adhesively-Bonded Tubular Scarf Joints| Chapter 10 | Current Overview on Science and Technology Research Vol. 2

 Cylindrical cement joints are generally utilized while joining cylinders and poles. To work on the joint strength in the hub course, the cross-segment of the cylinders can be chamfered to deliver a scarf cylindrical joint. This study intends to analyze the tractable presentation of cylindrical scarf joints (TSJ) with aluminum (AW6082-T651) adherends, taking into account the variety of the scarf point () from 45° to 3.43°. Right off the bat, through the correlation of exploratory tests and mathematical investigation of cylindrical lap joints (TLJ), the strong zone model (CZM) strategy and particular durable boundaries were approved. A CZM examination was then performed on the TSJ to dissect strip (σy) and shear stresses (τxy) in the cement layer. Examination of the dispersed energy as well as investigations of harm and joint strength were performed. The mathematical investigation uncovered a tremendous impact, profiting from more modest and preferable pressure disseminations over TLJ.

Author(s) Details:

J. E. S. M. Silva,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

I. J. Sánchez-Arce,
INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

R. D. F. Moreira,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/COSTR-V2/article/view/7996

Numerical Evaluation of Different Adhesive Joint Configurations by Cohesive Zone Modelling| Chapter 10 | Current Overview on Science and Technology Research Vol. 1

 Single-lap joints (SLJ), double-lap joints (DLJ), stepped joints, and scarf joints are the most typical configurations for adhesive joints. The overlap length is one of the most significant factors that influences the joint strength (LO). The major goals of this work are to compare various joint geometries using different adhesives with diverse properties and to determine which type of adhesive is best suited for each joint shape. In order to test three adhesives, SLJ, DLJ, stepped joints, and scarf joints were selected. The experimental data are contrasted with the numerical results from the integrated cohesive zone modelling (CZM) module of the Abaqus® programme. This study came to the conclusion that the best joint arrangement is significantly influenced by the type of glue being used.

Author(s) Details:

N. G. C. Barbosa,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and  INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/COSTR-V1/article/view/7944

Mixed-mode Cohesive Properties of a Thin Adhesive Layer | Chapter 9 | Current Overview on Science and Technology Research Vol. 1

 When creating adhesive structures, it is essential to accurately predict their strength and fracture characteristics (critical strain energy release rate in tension, GIC, and shear, GIIC). Determining how strain energy release rates in tension (GI) and shear (GII) compare to different crack propagation criteria or fracture envelopes is vital in order to comprehend how fracture manifests itself in these conditions. Using single-lap joints (SLJ) and double-lap joints (DLJ) with aluminium adherends and bonded with three different adhesives, the main goal of this chapter is to confirm, using cohesive zone models (CZM), which is the power parameter () that best suits the energetic crack propagation criterion for CZM modelling. This is accomplished by running SLJ and DLJ numerical simulations and comparing the maximum load (Pm) to experiments. The energy criterion from the experimental investigation led to numerical results that were equivalent for Araldite® AV138 and Araldite® 2015, validating the fracture envelopes. Results from the Sikaforce® 7752 were slightly skewed as a result of CZM law form difficulties.

Author(s) Details:

J. P. S. M. B. Ribeiro,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

R. J. B. Rocha,
INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/COSTR-V1/article/view/7943

Scarf Adhesive Joints between Different Adherends by Experimental and Numerical Modelling| Chapter 8 | Technological Innovation in Engineering Research Vol. 7

 For the aim of structural optimization, composite materials must now frequently be combined with other lightweight metals, such as titanium or aluminium, in many high-performance constructions. The double-lap, stepped, and scarf joint configurations are more typical joint arrangements. The findings of an experimental and numerical study for hybrid scarf joints between adherends constructed of aluminium and composite materials, accounting for varied scarf angle ( values, are presented in this research. The strength between various joint configurations is discussed using the peel (y) and shear stresses (xy) that were obtained by the numerical analysis using Finite Elements (FE). The joint strength was predicted using cohesive zone modelling (CZM), and the predictions were then confirmed by contrasting the outcomes with those from the experiments. Due to the fact that the behaviour of the joints was heavily dependent on CZM, CZM was confirmed for the design of hybrid scarf joints.

Author(s) Details:

D. L. Alves,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

R. D. F. Moreira,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/TIER-V7/article/view/7923

Analysis of Torsional Tubular Adhesive Joints using a Numerical Finite Element Approach | Chapter 5 | Research Aspects in Chemical and Materials Sciences Vol. 1

 Tubular bonded joints are frequently exposed to axial or torsional stresses. The weight reduction of the structure and ease of manufacturing are two advantages of this form of connecting over additional welding or mechanical joining. The torsional performance of three adhesives in aluminium tubular joints (AW6082-T651) is compared in this study, which takes into consideration the variation of essential geometric parameters such as overlap length (LO) and tube thickness. To anticipate strength, the Finite Element Method (FEM) was combined with Cohesive Zone Models (CZM). The investigation was based on the maximal torsional moment as a measure of joint strength (Mm). Validation with experimental data had already been completed. Experimental data was used to verify the approach, demonstrating CZM's capacity to represent tubular junctions. Except for LO, Mm showed a substantial geometrical impact. Tube yielding reduced joint strength as tube thickness increased.

Author(s) Details:

T. J. S. Oliveira,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

M. G. Cardoso,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/RACMS-V1/article/view/7083

Tensile Cohesive Laws of Adhesive Joints as a Function of the Adhesive Thickness | Chapter 14 | Technological Innovation in Engineering Research Vol. 3

Because bonded structures bear such a high level of responsibility, it is critical to accurately predict fracture behaviour under a variety of stresses. Numerical simulations, similar to Cohesive Zone Models (CZM), can be used for strength prediction. The influence of adhesive thickness (t_A) variation on the value of tensile fracture toughness (G_n^c) of a bonded joint is investigated numerically in this paper. The direct technique was also used to get the cohesive qualities and geometric dimensions that were incorporated as basic properties in the simulation software. The numerical effort entails reproducing the experimental data, namely the load-displacement (P-d) curves, in order to confirm the cohesive laws established for the various tested t_A. For this project, the triangular CZM was chosen, with 2D modelling in plane-strain conditions as the most suited condition for the geometry in issue. CZM guidelines for the Sikaforce® have been provided and proven as a consequence of this study for the design of bonded structures, substantially speeding up the procedure.

Author(s) Details:

R. P. R. O. Antunes,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/TIER-V3/article/view/7072

Insight on the use of Cohesive Zone Models for Impact Strength Analysis of Adhesive Joints | Chapter 11 | Technological Innovation in Engineering Research Vol. 3

Adhesive bonding are becoming more popular as a substitute for technical applications. The growing popularity of this sort of joining necessitates the development of tools to aid in the design process. Cohesive zone models (CZM), which combine strength and toughness characteristics to forecast the performance of adhesive joints, are one of the most effective damage criteria or models linked with the Finite Element Method. Adhesive joints are subjected to impact loads in various practical circumstances, such as car wrecks. The main purpose of this study is to see how cohesive factors affect the strength of single-lap joints (SLJ) that are subjected to impact stresses. The impact of the cohesive properties was studied by changing each of these qualities while leaving the others constant. To investigate the influence of different adhesive qualities, the Araldite® AV138 (high stiffness) and Nagase Chemtex® XNR6852 E-2 (high toughness) adhesives were used. CZM correctly predicts joint impact strength, and CZM settings have a considerable influence on joint strength, according to the findings.

Author(s) Details:

D. M. S. R. B. Machado,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/TIER-V3/article/view/7068

Evaluation of Bonded Joints by Cohesive Zone Models: A Descriptive Study| Chapter 15 | New Trends in Physical Science Research Vol.3

Cohesive Zone Models (CZM) are commonly used to forecast adhesive junction strength. This research investigates the impact of various analytical conditions, especially cohesive parameters, utilised in CZM simulations to represent a thin adhesive layer in single-lap joints (SLJ) under tensile stress, on strength prediction under various geometrical and material circumstances. The researchers looked several adhesives with brittle to highly ductile characteristics and overlap lengths (LO) ranging from 12.5 to 50 mm. Several damage initiation and growth characteristics were explored. When the modelling conditions are properly specified, CZM is a potent approach for estimating the strength of bonded joints, according to the findings of this study.

Author(s) Details:

R. J. B. Rocha,
Departamento de Engenharia Mecanica, Instituto Superior de Engenharia do Porto, Instituto Politecnico do Porto, Rua Dr. Antonio Bernardino de Almeida, 431, 4200-072 Porto, Portugal.

R. D. S. G. Campilho,
Departamento de Engenharia Mecanica, Instituto Superior de Engenharia do Porto, Instituto Politecnico do Porto, Rua Dr. Antonio Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Polo FEUP, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal.

Please see the link here: https://stm.bookpi.org/NTPSR-V3/article/view/6834