no-yield point 屈服不明显
However, no yield point of the steel pipe filled with concrete are not involved; The model tests of concrete-filled steel tubular laced column are not many.
本文通过无屈服点钢管混凝土轴压短柱和四肢钢管混凝土格构柱的试验研究和理论分析,建立了短柱和四肢格构柱的受压极限承载力计算公式。
参考来源 - 四肢钢管混凝土格构柱试验及理论分析·2,447,543篇论文数据，部分数据来源于NoteExpress
Although there is no yield point, one needs to be defined.
虽然不能具体定义屈服点，但是必须确定下来。
The yield point is the stress at which there is an appreciable increase in strain with no increase in stress, with the limitation that, if straining is continued, the stress will again increase.
屈服点是在应变有可观增加，应力没有增加的应力极限，在这个极限下，如果应变继续增加，应力就也会增加。
When the stress reaches the yield point, a large increase in strain occurs with no increase in stress.
当应力达到屈服点，应变会急剧增大而应力保持不变。
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