Articles

A screw dislocation near one open inhomogeneity and another closed inhomogeneity both permitting constant interior stresses

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  • 1. School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China;
    2. Department of Mechanical Engineering, University of Alberta, Donadeo 10-203, Canada;
    3. Innovation Centre for Engineering, Alberta T6G 1H9, Canada

Received date: 2020-08-22

  Revised date: 2020-11-23

  Online published: 2021-01-30

Supported by

Project supported by the National Natural Science Foundation of China (No. 11272121) and the Natural Sciences and Engineering Research Council of Canada (No. RGPIN-2017-03716115112)

Abstract

We prove that the interior stresses within both a non-parabolic open in-homogeneity and another interacting non-elliptical closed inhomogeneity can still remain constant when the matrix is simultaneously under the action of a screw dislocation and uniform remote anti-plane stresses. The constancy of interior stresses is realized through the construction of a conformal mapping function for the doubly connected domain occupied by the surrounding matrix. The mapping function is endowed with the information describing the screw dislocation via the incorporation of two specifically defined loga-rithmic terms. The constant interior stress fields are observed to be independent of the specific open and closed shapes of the two inhomogeneities and the existence of the screw dislocation. In contrast, the existence of the neighboring screw dislocation significantly affects the open and closed shapes of the two inhomogeneities.

Cite this article

Xu WANG, Ping YANG, P. SCHIAVONE . A screw dislocation near one open inhomogeneity and another closed inhomogeneity both permitting constant interior stresses[J]. Applied Mathematics and Mechanics, 2021 , 42(2) : 173 -182 . DOI: 10.1007/s10483-021-2702-8

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