摘要
本文对金属－陶瓷梯度材料的稳态热弹塑性行为进行了研究。文中首先采用平均场和自洽弹塑性微观力学方法预测了金属－陶瓷梯度材料的非弹性性能，然后用非线性有限元法计算了材料制备过程中的热弹塑性应力。结果表明，梯度材料的热弹塑性行为对梯度材料的热应力缓和性能有显著影响。
The steady thermo-elasto-plastic behavior of ceramic-metal functionally gradient materials(FGMs)was investigated by considering an Al2O3/Ni gradient material.The inelastic properties of the gradient interlayers were first evaluated using mean-field micromechanics and elasto-plastic self-consistent micromechanics method,and then an elastoplastic finite element model was used to calculate thermal stress in the material.The results show that the thermo-elasto-plastic behavior exerts significant influences on the thermal stress relaxation characteristics of the FGMs.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
1996年第2期89-93,共5页
Acta Materiae Compositae Sinica
基金
国家自然科学基金
关键词
金属
陶瓷
梯度材料
微观力学
复合材料
functionally gradient materials,thermo-elasto-plasticity,thermal stress relaxation,micromechanics
