摘要
首先对弹性力学的相似边界元法进行了研究,推导了相应的计算公式。与传统的边界元法相比,相似边界元法由于只需在少数单元上进行数值积分,当边界单元数目较多时大大减少了计算量。在此基础上,将相似边界元法应用于断裂力学,对路面断裂力学问题进行了计算,与有限元法的结果比较,说明了本文方法在减少计算量的情况下仍能较好地保证精度。
Similar boundary element method (SBEM) for elasticity is discussed to obtain the corresponding formulae. A sub-domain of the boundary the numerical integrals only are carried out on a few boundary elements, and ones on all other boundary elements can be obtained by interpolation. Comparing with the conventional boundary element method, the SBEM enables to reduce the computing tasks obviously. The proposed SBEM is extendly applied to the pavement fracture.
出处
《应用力学学报》
EI
CAS
CSCD
北大核心
2007年第2期294-297,共4页
Chinese Journal of Applied Mechanics
基金
国家自然科学基金(10571118)
关键词
边界元法
相似边界元法
弹性力学
断裂力学
应力强度因子
boundary element method, similar boundary element method, elasticity, fracture, stress intensity factor
