【摘 要】
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A class of problems concerning subinterface cracks interacting with the interface in metal/piezoelectric ceramic bimaterials are studied. The interaction proble
【机 构】
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School of Mechanical Engineering,School of Civil Engineering and Mechanics
论文部分内容阅读
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.
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