摘要
本文采用有限元与边界元耦合方法分析了道床应力,其中对发生弹塑性变形的道床结构采用有限元法,对半无限域的地基采用边界元法。由于有限元法在进行非线性分析时具有效率高,而边界元法在模拟半无限域时具有计算简单的特点,因此该方法集中了有限元与边界元的优点,计算精度和计算效率较一般数值方法明显提高。
This paper analyses the ballast stresses by FEM-BEM. The calculating method of baUast structure with elasto-plastic deformation uses FEM, and to half infinite domain uses BEM. Since the FEM has high efficiency in non-linear analysis, and the BEM is easy to computation, this scheme centres both method's advantage, so the accuracy and efficiency for computation is greatly superior to the method of general numerical calculation.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
1990年第1期60-65,共6页
Journal of the China Railway Society
