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金属成型加工过程中由于变形不均匀而在成型部件中产生残余应力。在轴对称试样中测定轴向、径向及切向残余应力的准确方法是由Mesnage提出,并由Sachs进一步发展完善的。镗削法可用切削圓筒外表面材料时测得的内表面应变的类似过程进行补充。 本文的工作发展了先前对圆筒形弹性各向异性体材料中(即各向异性体主轴对应于圆筒轴向,径向和切向情况)残余应力分析。此外,本文考虑了具有残余剪应力的情况,这种残余剪应力是由于绕着圆筒轴扭转而产生并存在于圆筒中的。当这种剪应力存在时,残余应力分布的主轴将不平行于圆筒的主轴。
Metal forming process due to uneven deformation in the molded parts produce residual stress. The exact method for determining axial, radial and tangential residual stresses in axisymmetric specimens was proposed by Mesnage and further developed by Sachs. The boring method can be supplemented by a similar process of measuring the internal surface strain at the time of cutting the material of the outer surface of the cylinder. The work in this paper has evolved the previous analysis of residual stress in cylindrical elasto-anisotropic materials (ie, the anisotropy of the major axis corresponds to the axial, radial and tangential conditions of the cylinder). In addition, this paper considers the case of residual shear stress, which is generated by twisting around the cylinder axis and existing in the cylinder. When this shear stress is present, the principal axis of residual stress distribution will not be parallel to the major axis of the cylinder.