求翻译：冷变形强化后，一定深度的材料含有残余应力，这部分材料的性能将发生变化。为了剔出材料性能改变的影响，推导了考虑强化效果的材料本构模型。对于考虑强化效果的模型，可以认为弹性模量改变，得到一个当量弹性模量。对于三维问题，经过推导可以采用两种方法描述含有残余应力材料的本构关系：方法一是将其它方法获得的残余应力场直接叠加到本构关系的描述方法；方法二是用当量残余应变与外载荷应变叠加，组成应变，并通过弹性矩阵建立应力应变关系。是什么意思？

After the cold deformation strengthening, a certain depth of material containing residual stress, the performance of this material will change. Bound by the change of material properties derived consider strengthening effect of the material constitutive model. Consider strengthening effect of the mo

Cold deformation hardening, a certain depth of the material contains residual stress, and this part of the material of the performance will be changed. In order to divert material derived from the effects of change, and the hardening effect the structure of the material model. For enhanced results,

After the cold-work strengthening, certain depth material includes the residual stress, this part of material performance will change.In order to pick out the material performance change influence, has inferred the consideration strengthening effect material this construction model.Regarding the con

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