Allowables-Based Flow Curves for Nonlinear Finite-Element Analysis |
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| Authors: | J D Pratt |
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| Affiliation: | (1) Argos Engineering, 44 Argos, Laguna Niguel, CA 92677, USA |
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| Abstract: | A methodology for developing allowables-based stress versus strain relationships for metal alloys is presented. The approach
incorporates Federal Aviation Administration/Department of Defense (FAA/DoD) Metallic Materials Property Development and Standardization
(MMPDS) statistically derived material properties for tensile yield and ultimate strengths to derive flow curves at room or
elevated temperature with an A-, B-, or S-Basis probability. The resulting flow curves may be used for new designs to comply
with Federal Air Regulations as well as for forensic investigations and failure analysis. |
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| Keywords: | Materials allowables Finite-element analysis Material properties MMPDS Cozzone method Fictitious stress |
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