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本文在文[1]的基础上,导出了主应力和σ_1+σ_2、主应力差σ_1-σ_2与输出电流Mφ_0、Mφ_(90)之间的关系式,建立了残余应力计算公式。
On the basis of [1], this paper derives the relationship between principal stress and σ_1 + σ_2, principal stress difference σ_1-σ_2 and output current Mφ_0, Mφ_ (90), and establishes the formula for calculating residual stress.