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landplay木蟲 (小有名氣)
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[求助]
ansys中基于應(yīng)力還是基于應(yīng)變進(jìn)行判斷
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| ansys在進(jìn)行疲勞分析時(shí),既可以求應(yīng)變也可以求應(yīng)力,何時(shí)用應(yīng)力何時(shí)用應(yīng)變與材料的本身屬性及狀態(tài)有關(guān)嗎?如果是彈塑性材料,是不是在塑性狀態(tài)下只能通過(guò)求解應(yīng)變來(lái)進(jìn)行疲勞分析。這里有一句話我不是很理解“The idea of using a scalar stress measure is probably justified if we assume that failure is a primarily stressed based failure criteria. This is difficult to assess in the absence of a mention of failure strength of any of the materials used. ” |
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