Size-dependent inelastic behavior of particle-reinforced metal-matrix composites
Size-dependent inelastic behavior of particle-reinforced metal-matrix composites
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DOI：
10.1016/s0266-3538(00)00235-9
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发表时间：
2001-01-01
影响因子：
9.1
通讯作者：
Bai, YL
中科院分区：
文献类型：
--
作者：
Dai, LH;Ling, Z;Bai, YL
颗粒增强金属基复合材料（MMCp）的强化行为主要归因于位错强化效应和载荷传递效应。为了统一考虑这两种效应，本文提出了一种新的混合方法，将几何上必要的位错强化效应纳入增量微力学方案。利用这种混合方法，给出了与颗粒尺寸相关的MMCp的非弹性变形行为。与已有实验结果的比较表明，本方法是令人满意的。(C)2001爱思唯尔科技有限公司版权所有。
The strengthening behavior of particle-reinforced metal-matrix composites (MMCp) is primarily attributed to the dislocation strengthening effect and the load-transfer effect. To account for these two effects in a unified way, a new hybrid approach is developed in this paper by incorporating the geometrically necessary dislocation strengthening effect into the incremental micromechanical scheme. By making use of this hybrid approach, the particle-size-dependent inelastic deformation behavior of MMCp is given. Some comparisons with the available experimental results demonstrate that the present approach is satisfactory. (C) 2001 Elsevier Science Ltd. All rights reserved.