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11轴向拉压杆,与其轴线平行的纵向截面上( )。

单选题
2021-09-08 14:07
A、)
B、)
C、)
D、)
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正确答案
D

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翻译:With Average or With Particular Average(WA or WPA)()
轴向拉压变形时,杆件沿轴线方向伸长或缩短,且变形前横截面若是平面,则变形后横截面仍保持为平面,这称之为()
轴向拉压时与轴线相重合的内力称()。
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A salvor may be()the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.
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逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
关于轴力,下列说法中()是正确的。 ①轴力是轴向拉压杆横截面上唯一的内力; ②轴力必垂直于杆件的横截面; ③非轴向拉压的杆件,横截面上不可能有轴向力; ④轴力作用线不一定通过杆件横截面的形心。
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
轴向拉压时,横截面上的应力是正应力。
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轴向拉压杆件横截面上既有正应力也有切应力。( )
11轴向拉压杆,与其轴线平行的纵向截面上( )。
变截面轴向拉压杆最大正应力发生的截面上一定是()。
轴向拉压杆的变形与()。
轴向拉压杆的受力特点是:杆两端作用着大小相等、方向相反、作用线与杆轴线垂直的一对外力。
在计算轴向拉压杆的变形中,EA称为杆件的()
关于等直轴向拉压杆内应力的下列论述中,错误的是()
等直杆受轴向拉压,当应力不超过比例极限时,杆件的轴向变形与横截面面积成()。
轴向拉压变形的直杆,横截面上的轴力的作用线()
轴向拉压时,横截面上的应力的特性为()。
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Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
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关于轴力,下列说法中()是正确的。
①轴力是轴向拉压杆横截面上唯一的内力;
②轴力必垂直于杆件的横截面;
③非轴向拉压的杆件,横截面上不可能有轴向力;
④轴力作用线不一定通过杆件横截面的形心。

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轴向拉压变形时,杆件沿轴线方向伸长或缩短,且变形前横截面若是平面,则变形后横截面仍保持为平面,这称之为()
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