切向力对高温发汗润滑胞体结构的接触稳定性影响

基于高温发汗润滑材料厚壁胞体的接触力学模型，利用ANSYS有限元软件分析了切向力与法向力耦合作用下厚壁胞体孔口应力的分布情况，从而探讨了切向力对厚壁胞体接触稳定性的影响。结果表明：切向力的存在对单孔厚壁胞体的接触强度及其断裂失效行为影响不大，但是会导致双孔及四孔厚壁胞体的接触强度下降，而三孔厚壁胞体的接触强度及断裂失效行为不但与切向力的大小有关，而且与切向力的方向密切相关。因此，在胞体材料结构设计与制备中，控制其胞体结构形态非常重要。

Effect of Tangential Force on Contact Stability of Cellular Structure of High Temperature Sweating Lubricated Materials

Based on the contact mechanics model of high temperature sweating and self-lubricating thick-walled cell body, the orifice stress of the cell was analyzed under the tangential and normal forces, and the effects of tangential force on its contact stability were investigated using the finite element software of ANSYS. The results show that: tangential force has little effect on the contact strength and fracture behavior of thick-walled cell with single pore, however, it leads to the contact strength decrease of thick-walled cell with two and four pores, while the contact strength and fracture behavior of thick-walled cell with three pores depend on the value of the tangential force, and on its direction. Therefore, it is very important to control the structural morphology of the cell in the design and preparation of cellular materials.