采用非连续变形分析（DDA法）建立边坡模型，计算安全系数及模拟破环过程。(The slope model was established by discontinuous deformation analysis (DDA method), and the safety factor and simulated fracture process were calculated.)

用BWRS状态方程计算天然气的压缩因子Z(Use BWRS EOS to calculate the Z factor of natural gas.)

一受均匀拉力的板，中心带贯穿裂纹，裂纹长2a，使用4节点单元计算裂尖应力分布和应力强度因子(A uniform tensile plate with a through crack in the center and a crack length of 2a is used to calculate the stress distribution and stress intensity factor at the crack tip using a four node element)