Abstract
In recent years, several failure probability postprocessing programs for FE-codes applied to ceramic components have been developed. All postprocessors combine the statistical strength description according to Weibull with different strength theories as for example the ‘Principal Stress Theory’ linked to the ‘Principle of Independent Action’ or the ‘Linear Elastic Fracture Mechanics’ approach, both accounting for multiaxialloading. Moreover, the program includes a ‘Lifetime Processor’ which allows the calculation of the time-dependent failure probability of the ceramic component if strength degradation occurs due to subcritical crack growth. In a typical example, the time-dependent failure probability of an automotive ceramic exhaust valve was calculated using the mean value of the positive principal stresses as strength criterion.
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© 1992 Elsevier Science Publishers Ltd and MPA Stuttgart
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Kussmaul, K., Lauf, S., Turan, K. (1992). FEM-LIFTAP, A Finite Element Lifetime Analysis Postprocessor for Ceramic Components. In: Carlsson, R., Johansson, T., Kahlman, L. (eds) 4th International Symposium on Ceramic Materials and Components for Engines. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2882-7_105
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DOI: https://doi.org/10.1007/978-94-011-2882-7_105
Publisher Name: Springer, Dordrecht
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