抄録
A method for geometrical analysis of the τxy-network and a finite difference method of applying it to the problem of stresses measurement in a two-dimensional photoelastic model are developed. The distribution of sums of principal stresses is determined by solving Laplace's equation numerically with the boundary conditions obtained isochromatically. Subsequently, the distribution of shear stresses τxy is calculated numerically by solving the equation derived from equations of equilibrium using the sum of principal stresses. The method is illustrated by the application to cases of circular and square plates under opposite compression.
Results by the experimental and computational studies compare well with each other.
