摘要
提出新的应力函数，该应力函数对于表面自由的或承受均布载荷的裂纹都适用。利用该应力函数导出了各种裂纹模型，在各种边界条件下的应力强度因子（ＳＩＦ）的计算公式及裂纹面上各点位移的计算公式。并利用边界配位法，计算了方形中心裂纹板在各种条件下裂纹面上各点的位移。
In this paper, a set of new stress functions is proposed, which is suitable not only for crack surfaces stress free but also for the crack surfaces subjected to uniform loading. For the crack under any mode and any boundary conditions, the formula of the stress intensity factors and the displacements of any point in the crack plane are derived. By using the boundary collocation method, the displacement values of any point in the crack plane for a square internally cracked plate under defferent conditions are calculated.
出处
《机械强度》
CAS
CSCD
北大核心
1997年第2期63-67,共5页
Journal of Mechanical Strength
基金
国家杰出青年科学基金
国家教委跨世纪优秀人才专项基金
煤炭科学基金
关键词
边界配位法
应力强度因子
裂纹张开位移
boundary collocation method, mixed mode crack, mixed boundary condition, stress intensity factor, crack opening displacement
