2022 Cx Variability Round Robin
From Engineered Residual Stress Implementation (ERSI)
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| Point of Contact(s): TJ Spradlin |
| Objective: Recent discussion within the ERSI Analysis Methods & Testing Committee have identified a need to perform a round-robin exercise focusing on how uncertainty in fatigue response due to the random variability in residual stresses at Cold Expanded (CX) fastener holes can be captured in damage tolerance analysis (DTA). This round-robin seeks to address the following:
· Identify the sensitivity of DTA capabilities to variability in a CX fastener hole treated within specification · Identify the impact of using computational, empirical, or combined residual stress results in DTA · Anonymously compile ERSI community results for the above listed objectives for group comparison-to-test · Derive best-practices guidance from comparisons and in-depth-technical review by the ERSI community |
