Through process modeling for the fatigue life assessment of notched injection-molded specimens
Castagnet, S. Nadot-Martin, C. Bernasconi, A. Lainé, E. Conrado, E. Caton-Rose, Philip D.
Castagnet, S.
Nadot-Martin, C.
Bernasconi, A.
Lainé, E.
Conrado, E.
Caton-Rose, Philip D.
Publication Date
2014
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Abstract
The study is based on a previously proposed methodology for multiaxial fatigue life
assessment of injection-molded components (called ‘Through Process Modeling’ (TPM)). The
present contribution focuses on stress concentration effects induced in notched samples.
Purely macroscopic approaches are unable to capture the different mechanical responses of
variably injected parts with the same shape. A high interest of the present method is to take
into account the difference of fiber orientation resulting from the process. After briefly
reminding the TPM method, it will be shown that good lifetime estimations are obtained for
laterally injected samples, from a fatigue criterion identification based on longitudinally
injected ones.
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Castagnet S, Nadot-Martin C, Bernasconi A et al (2014) Through process modeling for the fatigue life assessment of notched injection-molded specimens. In: Proceedings of the 16th European Conference on Composite Materials. 22-26 Jun 2014, Seville, Spain: 1-4.
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