SIZE-DEPENDENCE STRESS FIELD OF AN INFINITE MATRIX WITH A NANOSIZED SPHEROIDAL INHOMOGENEITY UNDER HYDROSTATIC LOADING
The effect of surface energy on the stress field of a nanosized spheroidal inhomogeneity embedded in an infinite matrix is analyzed based on the surface elasticity theory.Using the method of potential functions,we obtained the elastic field of heterogeneous material subjected to a hydrostatic loading.It is shown that when the size of the inhomogeneity reduces to nanometers,the contribution from surface energy becomes important.The results are evidently different from the classical results,and are uselhl to the failure analysis and prediction of the effective moduli of heterogeneous materials containing nanosized inhomogeneities.
interface energy elastic fields inhomogeneity nanometer
D.X.Lei Z.Y.Ou L.S.Ma
School of Science,Lanzhou University of Technology,Lanzhou 730050,China
国际会议
第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)
安徽黄山
英文
174-177
2008-06-03（万方平台首次上网日期，不代表论文的发表时间）