BASIC ROLE OF A HARD PARTICLE IN A METAL-MATRIX SUBJECTED TO TENSILE LOADING

The present study is mainly devoted to clarifying the basic role of a hard particle in a metal matrix based on Eshelby's theory of an inhomo geneity. Firstly, the stress and strain distribution around an isolate d spherical particle has been visualized instead of leaving the classi c fundamental approach as an analytical form. Secondly, the features o f the matrix-particle interfacial stress characteristics have been exa mined. Thirdly, the work answers the question of how the misfit of the elastic constants affects stress transfer to the inhomogeneity. Final ly, a verification has been made that the stress concentration in the matrix is normalized by the size of the inhomogeneity.