Geogrid: planar, polymeric structure consisting of a regular open network of integrally connected, tensile elements, which may be linked by extrusion, bonding or interlacing.
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There is clearly changed on yield strength and ratio of yield and tensile strength and the main affecting elements is middle frequency heating temperature before coating.
管体屈服强度和屈强比有明显变化，其主要影响因素是防腐前的中频加热温度。
Two types of nonlinear spring elements were incorporated into the finite element program to simulate tensile and shear tractions, to analyze the thermally induced failure of interfaces.
并在界面上引入承受剪切和拉压的两种非线性弹簧单元，模拟了界面的热致失效问题。
The internal forces in tensile membrane structures were analyzed using geometrical nonlinear finite element theory using curved quadrilateral isoperimetric 8 node elements.
本文根据几何非线性有限元理论，采用8结点曲面四边形等参单元，编制了用于张力膜结构内力分析的有限元程序。
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