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比强度有什么物理意义
更新时间: 2020-10-02 00:00:00  

比强度又被称为强度与重量比。材料的抗拉强度与材料表观密度之比叫做比强度。比强度是衡量材料是否轻质高强的指标,它的意义在于,在能达到所需强度的前提下,比强度高的材料轻便。优质的结构材料应具有较高的比强度,才能尽量以较小的截面满足强度要求,同时可以大幅度减小结构体本身的自重。

关键词: 强度 什么 物理 意义

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