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?
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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:
Case studies:
Learn more about case studies in cold working residual stress analysis.
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:
Case studies:
Learn more about case studies in machining distortion and residual stress redistribution analysis.
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:
Case studies:
Learn more about case studies in residual stress and fracture mechanics analysis.
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