StressCheck Tutorial: Linear vs Nonlinear Results for a Single Lap Joint
Abstract: Comparison between linear, material nonlinear (plasticity effects) and general nonlinear (plasticity + geometric nonlinear effects) for a single lap joint under uniaxial load. Large deformations result for the linear analysis, including unrealistically large rotations at the adhesive, indicating geometric nonlinear analysis is required to represent the solution.
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“Small errors in modeling can lead to substantial errors in joint performance prediction. To alleviate this problem, the CAI used the handbook functionality of ESRD Inc.’s (St. Louis, Mo.) trademarked StressCheck® P-version finite element software to develop reusable models of typical joints.”
Dr. John RussellComposites World Magazine