Numerical and Experimental Investigation of Failure Analysis Adhesive Joints Under The Extreme Temperature Conditions


Yazıcı M., Yagoub S., Karen İ., Can Y.

2nd International Conference on Computational and Experimental Science and Engineering (ICCESEN 2015), Antalya, Turkey, 14 - 19 October 2015, pp.275

  • Publication Type: Conference Paper / Summary Text
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.275

Abstract

This paper assessed a shear behaviors of a single lap adhesive joint experimental and

numerically under room, high and low temperatures by using aluminum as adherent and

epoxy (G-flex) as adhesive.

Before performing the single lap shear tests, a Finite Element Analysis (FEA) model with

ABAQUS software program was created simulating the shear strain occurring during the test.

In the FEM analysis a Cohesive Zone Model (CZM) was adopted. The adhesive joint

thickness was supposed to be zero. The cohesive parameters of elastic linear stiffnesses

and damage initiation stresses and then damage evolution fracture energies in mode 1,

mode 2 was entered with accepting that parameters in mode 3 to be equal to those of mode2

in order to simplify the model as possible.

Two different tests Double Cantilever Beam (DCB) and End Notch Flexure (ENF) were

fulfilled according to ASTM standards to find the mode 1 and the mode 2 fracture energy

parameters. The rest of parameters were estimated numerically by fitting the experimental

Load-displacement curve to the numerical one.