【摘 要】
：
Based on the model of multi-layer beam and the assumption of micro-inhomogeneity of material, the 3D fractural characteristics of laminated ceramic composites h
【机 构】
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Faculty of Civil Engineering,School of Civil and Hydraulic Engineering,Research Center for Numerical
【基金项目】
：
广东省科技厅科技计划;广州市教育厅科技项目;广东省自然科学基金
论文部分内容阅读
Based on the model of multi-layer beam and the assumption of micro-inhomogeneity of material, the 3D fractural characteristics of laminated ceramic composites have been studied with numerical simulation. Under three-point bending load, crack initiation, coalescence, propagation, tuning off in the weak interface and final rupture have been simulated. The spatial distribution and evolution process of acoustic emission are also presented in the paper. The simulation verifies the primary mechanism of the weak interface inducing the crack to expand along there and absorbing the fractural energy. The disciplinary significance of the effect of strength and properties of material on the toughness and strength of laminated ceramic composites is, therefore,discussed in this paper.
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