Finite element estimates of strain energy release rate components at the tip of an interface crack under mode I loading

摘要: The strain energy release rate components $G_{I}$ and $G_{II}$ in mode I II at the tip of an interface crack a bimaterial plate under tension direction normal to were evaluated using finite element analysis Modified Crack Closure Integral (MCCI) technique. Three models, namely bare model, resin layer model subinterface studied with two different material combinations progressively decreasing size Aa which is also virtual extension considered MCCI evaluation. results for all models show increasing dominance as $\Delta \rightarrow 0$. Interpretation these meaningful if Au identified growth step size.