摘要
从断裂力学的角度，阐述了有关梯度功能材料裂纹问题的基本概念。系统归纳和总结了梯度功能材料的裂纹模型，着重讨论了裂纹尖端应力场和应力强度因子及其影响因素，并对梯度功能材料裂纹的研究发展前景提出了一些建议。
From the viewpoint of fracture mechanics,some foundamental concepts concerning the crack problems for functionally gradient materials are discussed.The crack models for functionally gradient materials are summarized and reviewed systematically with the emphasis on the crack-tip stress field and stress intensity factors as well as their influential factors.Some suggestions on the development perspective of the crack problems research for functionally gradient materials are proposed also.
出处
《陶瓷学报》
CAS
1999年第3期131-136,共6页
Journal of Ceramics
基金
国家自然科学基金
山东省优秀中青年科学家科研奖励基金
关键词
梯度功能材料
断裂
应力
强度
裂纹
functionally gradient materials,continuum mechanics,fracture mechanics,stress intensity factors,crack-tip field
