非均匀残余应力场识别方法研究

IF 0.3 Q4 MECHANICS

Moscow University Mechanics Bulletin Pub Date : 2023-08-15 DOI:10.3103/S0027133023030044

E. B. Zavoychinskaya, A. S. Plotnikov

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引用次数: 0

摘要

提出了一种基于增量钻孔法位移光学测量数据的三轴非均匀弹性残余应力的数值解析方法。位移作为三个变量函数(在孔的平面上和沿孔的深度)的本构关系用Volterra积分算子表示。给出了一种求基本函数的方法。该方法恢复的应力张量分量与已知的完全弹塑性梁弯曲产生残余应力问题的解很好地吻合。

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On the Method for Identifying Inhomogeneous Fields of Residual Stresses

A numerical-analytical method for three-axial inhomogeneous elastic residual stress determination based on the data of the displacement optical measurement during the incremental hole drilling method is presented. The constitutive relations for the displacements as the three variable functions (in plane of the hole and along its depth) are represented by the Volterra integral operators. A method for finding the basic functions is given. The stress tensor components recovered by the proposed method are in good agreement with the well-known solution of a problem where the residual stresses are formed by bending an elastic-perfectly plastic beam.

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来源期刊

Moscow University Mechanics Bulletin MECHANICS-

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： Moscow University Mechanics Bulletin is the journal of scientific publications, reflecting the most important areas of mechanics at Lomonosov Moscow State University. The journal is dedicated to research in theoretical mechanics, applied mechanics and motion control, hydrodynamics, aeromechanics, gas and wave dynamics, theory of elasticity, theory of elasticity and mechanics of composites.