作者g96117XX (云)
看板Physics
标题[题目] 塑性力学
时间Mon Apr 21 21:46:46 2008
[领域]塑性力学 (题目相关领域)
[来源]课本习题 (课本习题、考古题、参考书...)
[题目]For plane-strain deformation(dε2 and σ3=0),sketch the von Mises yield
locus for the first quadrant in σ1-σ2 stress space.
(a)Indicate how dε1 and dε2 would appear according to normality.
(b)Determine the plastic work per unit volume as a function of principal
stresses and strain increments.
(c)Explain your answer in (b) with reference to the plot in (a).
我的解答:
(a)Indicate how dε1 and dε2 would appear according to normality.
解: dε2 and σ3=0
瓶颈: 要如何绘图表示?
(b)Determine the plastic work per unit volume as a function of principal
stresses and strain increments.
解: dω=σ1dε1+σ2dε2+σ3dε3
∵dε2 and σ3 =0
∴dω = σ1dε1
(c)Explain your answer in (b) with reference to the plot in (a).
解: dω = Fx dx
瓶颈: 要如何绘图表示呢? (写写自己的想法,方便大家为你解答)
以上瓶颈部份,麻烦版友们帮忙作解,谢谢!!
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