摘要
针对一类杨氏模量梯度变化的功能梯度材料,考虑摩擦、微动磨损和黏附等因素,综述了梯度材料有限尺寸、梯度变化规律、梯度涂层厚度、界面摩擦热、压头形状等对表面接触力学性能的影响;根据不同接触模型中接触界面应力场分布,分析多种因素影响下功能梯度材料表面抵抗磨损的能力;最后给出了功能梯度材料接触力学研究中仍存在的主要科学问题及进一步研究展望.
In regard to a type of materials with gradient varying Young's modulus in the depth direction, considering the effects of interfacial friction, fretting and adhesion,the influences of finite scale of materials, the varying gradient law, thickness of gradient coating, thermo-friction of interface and the shape of punch on the surface contact features are summarized. The performance of resistance to wear of the gradient material surface is mainly analyzed according to the interfacial contact stresses in different contact models.Unsolved problems and prospects of future study on contact mechanics of functional gradient materials are suggested finally.
出处
《力学进展》
EI
CSCD
北大核心
2014年第1期1-25,共25页
Advances in Mechanics
基金
国家自然科学基金(11372317
11125211)
科技部重大科学研究计划(2012CB93-7500)资助项目
关键词
功能梯度材料
表面接触力学
有限厚度
摩擦
磨损
黏附
functional gradient material,surface contact mechanics,finite thickness,fric-tion,wear,adhesion
