Rotationally invariant distortion resistant finite-elements
The accuracy of the finite-element solution deteriorates as elements become distorted. New rotationally invariant and mesh distortion-resistant element. Applied to both linear and geometrically non-linear analysis. Predictive capabilities demonstrated using geometrically non-linear analyses. Important step in overcoming the problem of mesh distortion sensitivity.
finite-elements mesh distortion geometric non-linearity elasto-plasticity shape functions