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  • About
    • Who We Are
    • S.A.F.E.R. Simulation
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    • News & Events
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    • Contact Us
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  • Residual Stress Applications

Residual Stress Applications

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.

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?

Toggle to view a key application

Cold Working RS Analysis

Representing cold working processes is a must for any structural integrity engineer: mandrel insertion, removal and subsequent reloading/unloading of holes to evaluate residual stress states. Users can also trace the residual stress history for each step.

Applicable products:
  • StressCheck® Core
  • Linear Elasticity Solver
  • Non-Linear Solver
  • Cold Working Solver
Case studies:
Learn more about case studies in cold working residual stress analysis.
Learn More

Machining Distortion and RS Redistribution Analysis

Specify RS distribution throughout a part, or on surfaces of a part, and compute distortion after multi-step machining or due to surface treatments (e.g. shot peening). Seamlessly account for redistribution of RS after material is removed.

Applicable products:
  • StressCheck® Core
  • Linear Elasticity Solver
  • BRS Module
  • SRS Module
Case studies:
Learn more about case studies in machining distortion and residual stress redistribution analysis.
Learn More

RS and Fracture Mechanics Analysis

RS can have a significant impact on crack behavior, so we compute fracture mechanics parameters accounting for the full part RS distribution (if available) or the partial RS distribution at the crack face. Predict the influence of cold working RS on cracks.

Applicable products:
  • StressCheck® Core
  • Linear Elasticity Solver
  • Fracture Mechanics Module
  • MeshSim Advanced
  • BRS Module
  • SRS Module
Case studies:
Learn more about case studies in residual stress and fracture mechanics analysis.
Learn More

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  • “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 Engineer
    Southwest Research Institute

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