对断裂力学用于压力容器的初步分析
通用机械研究所断裂力学课题组;
摘要(Abstract):
<正> 压力容器的脆性破坏是个重要与复杂的问题。断裂力学为防止压力容器脆性破坏提供了一个定量计算的方法,它建立了裂缝尺寸、应力水平及材料特性三者之间的关系。对于一定的材料特性(K_e,δ_e,G_e,Ρ_e~+,J_c),如已知容器中存在的最大裂缝尺寸、形状及部位,则可计算出该容器破坏时的临界应力值,对之取一定强度储备的安全系数,即能得到许用应力值,从而可利用断裂力学进行压力容器的定量设计。反之,通过容器结构的应力分析,亦可计算出引起容器破坏的临界裂缝尺寸,以及对
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作者(Author): 通用机械研究所断裂力学课题组;
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参考文献(References):
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