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FROM:
Ben H. Thacker (1), Jason E. Pepin (2) and Peter C. McKeighan (1)
(1) Southwest Research Institute 6220 Culebra Rd.
San Antonio, TX 78238
(2) Los Alamos National Laboratory MS P946
Los Alamos, NM 87545
“Model validation for the collapse of spherical shells” (publisher and date not given in the pdf file. The most recent citation is 2003.)
ABSTRACT: There is a growing need to quantify the level of credibility that can be associated with model predictions. Model verification and validation (V&V) is a methodology for the development of models that can be used to make engineering predictions with quantified confidence. Model V&V procedures are needed by government and industry to reduce the time, cost and risk associated with component and full-scale testing of products, materials, and weapons. Consequently, the development of guidelines and procedures for conducting a V&V program are currently being defined by a broad spectrum of researchers. This paper describes an on-going effort to validate a model that predicts the collapse load of a spherical shell structure. Inherent variations in geometric shape and material parameters are included in the uncertainty model. Results from a recently completed probabilistic validation test to measure the variation in collapse load are compared to the predicted collapse load variation.
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