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

Numerical Evaluation of Single-lap Adhesive Joints under Different Geometries and Adhesive Types | Chapter 2 | Techniques and Innovation in Engineering Research Vol. 3

 Adhesives can be strong and brittle (such as Araldite® AV138) or weak and ductile (such as Araldite® 2015). High strength and ductility are built into a new family of polyurethane adhesives such as Sikaforce® 7888. In this study, the performance of his three adhesives above was evaluated in single lap joints with different lap lengths (LO). Experimental work is complemented by rigorous numerical studies using finite elements based on Cohesive Zone Models (CZM). This procedure allowed us to validate the performance of this prediction technique when applied to adhesive joints. Additionally, we were able to determine the optimal adhesive family for each joint geometry. CZM has proven to be very accurate, except mainly for ductile adhesives, which can be circumvented by using another cohesion law.

Author(s) Details:

T. A. B. Fernandes,
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/TAIER-V3/article/view/8423

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