An equivalent stress method for the structural analysis of derrick with initialdeformation 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。
2
The magnitude and symbol of the residual stress greatly depends on the initialdeformation 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。
3
A mechanics model was established for petroleum pipeline on line at the states of digging out, burying with initialdeformation and without initialdeformation.