目前，吊车轮压荷载作用下工字梁腹板的局部屈曲鲜有研究，这主要是由于无法得到轮压荷载作用下承压应力在腹板内的分布规律。
The local buckling of web plates in I-girders under wheel loading has been rarely investigated, due to the unknown distribution of bearing stresses in the web plates.
对于敏感性材料，在低应力水平下也会发生断裂，危险性很大，容易引发承压管道和设备的爆破，造成重大事故。
Sensitive materials under low stress will suffer breakage which brings about large risk explosion of pressure bearing pipe and equipment is easily to be triggered causing major accident.
纸蜂窝面外压缩临界应力是评估纸蜂窝承压性能的一个重要指标。
Critical compression stress is an important index to evaluate the compression properties of paper honeycombs.
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