Are machining-induced residual stresses causing unacceptable distortion? Need to simulate the influence of cold working sequence for a given hole pattern? Residual stresses (RS) can have a significant impact on the strength, durability and damage tolerance of metallic and composite parts. In the past, reliably simulating RS effects was challenging due to extreme stress gradients, especially in lightweight components.
Residual Stress Applications
With the technology in StressCheck®, representing rapidly changing stresses over short distances is a breeze.

RS effects can be beneficial, such as life extension by cold working one or more fastener holes, or detrimental, such as distortion leading to expensive re-working or rejection of large, lightweight manufactured parts. Are you in good shape?
Residual Stress Application Focus
The following are typical residual stress analysis applications which are routinely performed in StressCheck® Professional:


Linear Elasticity Solver
Non-Linear Solver
Cold Working Solver


Linear Elasticity Solver
Bulk Residual Stress (BRS) Module
Subsurface Residual Stress (SRS) Module


Linear Elasticity Solver
Fracture Mechanics Module
MeshSim Advanced Automesher
Bulk Residual Stress (BRS) Module
Subsurface Residual Stress (SRS) Module
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Testimonials
When performing parametric structural analysis, ESRD’s p-element StressCheck® FEA software is always my preferred choice due to the excellent solution quality, parametric framework, and superior computational efficiency. In fact, I recently used StressCheck® to generate stress intensity factors along a parametrically defined elliptical crack-tip across 3,000 unique geometric configurations. Considering multi-body contact was present and all simulations were performed using a laptop, this was a task well suited for StressCheck®.
Dr. Lee Zambino
Researcher, Villanova University