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Continuum Damage Mechanics and the Life-Fraction rule
University of Skövde, School of Technology and Society.
2006 (English)In: Journal of applied mechanics, ISSN 0021-8936, E-ISSN 1528-9036, Vol. 73, no 4, 702-704 p.Article in journal (Refereed) Published
Abstract [en]

This paper gives a short review of two different methods for life prediction at high temperature; namely continuum damage mechanics (CDM) and the linear life-fraction rule (LFR). It is well known that the class of CDM theories with a separable evolution law gives a life prediction in accordance with the LFR. However, it appears to be an open question if this is a necessary condition. It is here shown that in order for a CDM theory to comply with the LFR it must have a separable evolution law. That is, if we can assume that a material follows the LFR, it is necessary to chose a separable evolution law for this material. The reverse is also true, to get a life-fraction different from unity, we must chose a nonseparable evolution law.

Place, publisher, year, edition, pages
American Society of Mechanical Engineers , 2006. Vol. 73, no 4, 702-704 p.
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:his:diva-1829DOI: 10.1115/1.2150502ISI: 000241436600022Scopus ID: 2-s2.0-33749568579OAI: oai:DiVA.org:his-1829DiVA: diva2:32105
Available from: 2007-09-07 Created: 2007-09-07 Last updated: 2014-06-02Bibliographically approved

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