摘要
本文由Reissner型板的不连续位移基本解，根据Betti互换定理，导出了Reissuer型板的不连续位移边界积分方程；结合平面问题的不连续位移边界积分方程─—边界元方法和线弹簧模型，给出了Rrissner型板表面裂纹应力强度因子的线弹簧-不连续位移边界积分方程解法。
By use of the displacement discontinuity fundamental solutions of Reissner's plate, the Displacement Discontinuity Boundary Integral Equation(DDBIE)is derived based on the Betti's reciprocal theorem. Making use of the DDBE and that of plane problems and the Line-Spring model,a method of analysis of the stress intensity factors of surface cracks in Reissner's plates is given.
基金
国家自然科学基金
机械工业技术发展基金
关键词
应力强度因子
边界积分方程
板
表面裂纹
stress intensity factor/boundary integral equation
boundary element method
Reissner's plate
Line-Spring model
