The analysis reveals energy release rates in asymmetric adhesive joints, highlighting stress differences and implications for fracture.
The expressions for energy release rate G for an asymmetric double cantilever beam specimen are derived using the beam on an elastic foundation model. The model includes the effect of the adhesive layer and comparisons with finite element results show that very high accuracy can be achieved. The stresses in the adhesive are shown to be high and of the same order as the bending stresses in the substrates. It is suggested that this could lead to subsidiary cracking from inherent flaws. In asymmetric specimens the stresses are higher on the thinner arm side and will promote fracture on that side. It is also shown that the analysis for G may be corrected for the effects of plastic yielding.
No takes yet. Share an insight, caveat, or question.
J. G. Williams (1995) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: