Modeling of elastic deformation of multilayers due to residual stresses and external bending
Journal
Journal of Applied Physics
Journal Volume
91
Journal Issue
12
Pages
9652-9656
Date Issued
2002
Author(s)
Abstract
A general closed-form solution for elastic deformation of multilayers due to residual stresses and external bending is derived. Based on the general solution, simplified solutions for residual stress distributions in multiple layers of thin films on a thick substrate are obtained. These simplified solutions can be expressed as functions of either mismatch strains between film layers and substrate or the curvature of the system. The simplified solution for the special case of one film layer on a substrate is also presented, and its accuracy is discussed. ? 2002 American Institute of Physics.
Type
journal article