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三维界面裂缝应力强度因子的杂交元计算方法研究 总被引：1，自引：0，他引：1
利用弹性力学放松连续性要求的变分原理，建立了求解三维界面裂缝问题杂交元计算模型，并通过采用杂交无法计算了三维界面裂缝应力强度因子，为三维界面裂缝的实验研究提供了必要的理论依据。 相似文献
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A class of problems concerning subinterface cracks interacting with the interface in metal/ piezoelectric ceramic bimaterials are studied. The interaction problem is reduced to a system of integral equations with the aid of the pseudo-traction-electric-displacement method. The equations are solved numerically, and the stress intensity factor, the electric displacement intensity factor and the mechanical strain energy release rate are evaluated. Numerical results of a Cu/PZT-4 bimaterial are given and shown in figures, in which three kinds of remote loading conditions are considered to make comparisons . It is found that the electric loading at infinity plays a quite important role in the present interaction problem. In addition, a conservation law of the first component of the Jk-integral vector is found, which does lead to a consistency check to confirm the effectiveness of the PTEDM as well as the numerical results derived in this paper. 相似文献
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利用杂交元法建立了求解复合材料三维界面裂缝问题的杂交元计算模型,并将之应用于复合材料梁型试件应力强度因子的计算过程,从而为此类试件的断裂安全分析提供了充分的理论依据。 相似文献
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利用杂交元法建立了求解复合材料三维界面裂缝问题的杂交元计算模型，并将之应用于复合材料型试件应力强度因子的计算过程，从而为此类试件的断裂安全分析提供了充分的理论依据。 相似文献
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