等截面杆，轴向受力如图所示。杆的最大轴力是： A. 8kN B. 5kN C. 3kN D. 13kN

作者: tihaiku 人气: - 评论: 0

问题等截面杆，轴向受力如图所示。杆的最大轴力是：

选项 A. 8kN B. 5kN C. 3kN D. 13kN

答案 B

解析解轴向受力杆左段轴力是─3kN，右段轴力是5kN。

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