Using ElectroMechanical Buckling for Measuring Residual Stress

Abstract

In this work, a new test structure and method for measuring residual stress is presented. The test structure is a single clamped-clamped beam with electrodes symmetrically positioned along both sides of the beam. The electromechanical buckling response is used to measure the residual stress. It is shown that a single test structure of the proposed design may be used to measure both compressive and tensile residual stresses in a continuous wide range