某高强度钢,材料的屈服极限为400MPa,强度极限为500MPa,断裂极限为 480MPa,比例极限为320MPa,设计安全系数为5,若用此材质的圆钢承受...

作者: rantiku 人气: - 评论: 0
问题 某高强度钢,材料的屈服极限为400MPa,强度极限为500MPa,断裂极限为 480MPa,比例极限为320MPa,设计安全系数为5,若用此材质的圆钢承受Q = 6. 5 x 104N 的拉伸载荷,试问圆钢的直径至少要多少才能满足使用要求?
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答案
解析 高强度钢的失效应力是强度极限500MPa。

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  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
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