五面体 meaning in English

pentahedron

Based on the line spring model of rice and levy , this paper sets up eight nodes line spring element and its stiffness matrixes and works out a program consist of prism element , hexahedron element and line spring element
编制了五面体单元、六面体单元和八节点线弹簧单元相结合的计算程序，计算了t型板接头表面裂纹的应力强度因子，计算值与光弹性试验结果吻合较好。
This dissertation applies 3 - d finite element theory to development of the shape functions and stiffness matrixes of the triangular prism isoparameter elements ( 6 to 15 nodes ) . a calculating method for gaussian integral in triangular prism is presented . the stress field in welded steel structures can be computed by the triangular prism isoparameter elements ( 6 to 15 nodes ) and hexahedron isoparameter elements ( 8 to 21 nodes )
本文应用三维有限元理论，构造了一类五面体6 15节点单元的形函数，提出了在五面体单元内的gauss积分处理方法，建立了相应的单元刚度矩阵，将其与六面体8 21节点单元结合，可用于计算焊接钢结构的应力场。