StressCheck Tutorial: 2D vs 3D Cold Working Analysis of a Close Edge Distance Hole
Abstract: Modeling of a 3″x5″ titanium strip with a 0.45″ diameter hole at a short edge distance (ED=1.5*D) from the right edge of the strip. The titanium’s elastic-plastic material is described by a Ramberg-Osgood curve with pure isotropic hardening (i.e. (beta=0). The mandrel insertion/removal nonlinear event is simulated by normal springs + spring displacements.
Planar (plane stress) and 3D (Extrude reference) models are solved via Incremental plasticity theory and residual stresses are studied.
Related ESRD Resources
Looking for Resources?
Recent News & Events
“Through the use of StressCheck® the A-10 Aircraft Structural Integrity Program’s (ASIP) Analysis Group is able to model more accurately the physics of fatigue crack propagation in critical aircraft structure. Through this tool we are able to model, analyze and predict failure of aircraft structure and then develop crucial inspection and maintenance planes to ensure the safety and sustainability of our nations warplanes. Without the analysis capability provided to us through StressCheck® we would not be able to provide accurate assessments of the A-10 structure to top USAF leadership.”
SWRI Research EngineerSouthwest Research Institute