But the stress - strain relationship is in complex stress condition after the necking starts 但是,从颈缩开始,其应力应变关系处于复杂应力状态。
The complex stress calculation formula , after starting of necking in simple tension experiment , is deduced in the paper 导出了单向拉伸试验颈缩开始后复杂应力的计算公式。
Moreover , there is not the value of ihe influence of loading rates on the behavior of concrete in the states of complex stresses 另外,规范中也没有复杂应力状态下加载速率对混凝土性能影响的指标。
The problem of ductile fracture of metals under complex stress has been investigated extensively , but has not been resolved as yet 金属材料在复杂应力状态下的韧性断裂是断裂力学研究的重要问题之一。
By pot growing method , effects of different salinity - alkalinity complex stress on tiller number and thy matter accumulation of rice were studied 摘要采用盆栽法研究了不同盐碱度对水稻分蘖数、分蘖前期和分蘖末期干物质积累状况及产量的影响。