Abstract
Expanding the methods of both an orthotropic plate and a multilayered isotropic plate, the authors propose a new method to measure principal residual stresses in a multilayered anisotropic plate laminated of plural orthotropic plates. The principal residual stresses are derived from Volterra's integral equations. Thin layers are successively removed from a front surface of a laminated anisotropic plate and the resultant strain in the back surface of the remaining plate is measured with strain gauges ; and then the principal residual stresses are calculated numerically as the solutions of the integral equations. The method is also applicable to multilayered anisotropic plates laminated of orthotropic plates of special elastic constants.
