正交异性双材料平面平板搭接界面端应力场  

The Stress Field of Plane Flat Lap Interface End of Orthotropic Bi-materials

作　　者：任彩霞[1] 王改燕[2] 李俊林[1] 

机构地区：[1]太原科技大学应用科学学院,太原030024 [2]山西煤炭职业技术学院,太原030031

出　　处：《太原科技大学学报》2011年第4期309-313,共5页Journal of Taiyuan University of Science and Technology

基　　金：山西省自然科学基金(2011011021-3)

摘　　要：通过构造特殊应力函数,利用复合材料断裂复变方法,对正交异性双材料平面平板搭接界面端问题进行了研究,在特征方程组的判别式Δ1>0和Δ2<0的情形下,推出了平板搭接界面端的应力强度因子、应力场及位移场的理论公式,其结果没有振荡奇异性及裂纹面没有相互嵌入现象。The orthotropic bi-material plane interface end of a flat lap often has multiple stress singularities.By a lot of data experiment shows that material combinations have two singularities as a general rule.The orthotropic bi-material plane interface end of a flat lap is studied by constructing new stress functions and using the composite complex function method of material fracture.When the characteristic equations discriminates Δ10 and Δ20,the theoretical formulas of stress fields,displacement fields and the stress intensity factor around the flat lap interface end are derived,indicating that there is no oscillatory singularity.

关 键 词：正交异性 平面 界面端 平板搭接 应力场 

分 类 号：O346[理学—固体力学]