Abstract
AbstractMeaningful visualization of finite element method (FEM) results is important for building the ground for hybrid numerical–experimental techniques. This is not a straightforward procedure for photoelastic analysis as conventional FEM techniques are based on the approximation of nodal displacements, not stresses. Although the displacements are continuous at inter‐element boundaries, the calculated stresses are discontinuous due to the operation of differentiation. Conventional FEM would require unacceptably dense meshing for producing sufficiently smooth photoelastic fringe patterns. Therefore, there exists a need for the development of a technique for smoothing the generated photoelastic fringes representing the stress distribution and calculated from the displacement distribution. The proposed smoothing technique is based on the minimization of the augmented residual. Copyright © 2004 John Wiley & Sons, Ltd.
Published Version
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