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Abstract To investigate the growth and interaction behaviors of surface voids, unit cells of void growth and interaction were created, and the effects of crystallographic orientation and depth of void location were studied by using crystal plasticity finite element method(CPFEM). Simulation results show that the void shape and growth direction significantly depend on the crystallographic orientation, and the void growth velocity is dependent on the crystallographic orientation. In general, the grwoth and interaction velocities of hard orientation are larger than that of soft one under the strain controlled boundary condition. With the depth of void location for surface void increasing, the maximal plastic deformation increases, and deformation localization around voids is more serious, and the velocity of void growth accelerates.
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Received: 17 June 2011
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2012, Vol. 33 
