An equivalent stress method for the structural analysis of derrick with initial deformation is offered.
为此，采用等价应力法对有初始变形的井架进行结构分析。
The magnitude and symbol of the residual stress greatly depends on the initial deformation rate of the pipe under drawing with the working tools.
残余应力的符号和大小在很大程度上取决于钢管在拔制工具中的初始变形率。
A mechanics model was established for petroleum pipeline on line at the states of digging out, burying with initial deformation and without initial deformation.
建立了埋地输油管道在线大修时，开挖、直接重埋和支平后重埋工况下的力学模型。
At present, in the design of reticulated shells, the initial deformation of the first buckling mode(the dimension is L/300) of the structure is introduced as initial imperfection.
目前在网壳结构设计中，初始缺陷是按照第一阶屈曲模态的L/300（L为结构跨度），对结构施加初始变形。
At present, in the design of reticulated shells, the initial deformation of the first buckling mode(the dimension is L/300) of the structure is introduced as initial imperfection.
目前在网壳结构设计中，初始缺陷是按照第一阶屈曲模态的L/300（L为结构跨度），对结构施加初始变形。
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