Long-term performance of continuous fiber reinforced thermoplastic composites

Ozan Erartsin, Leon E. Govaert

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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Abstract

Pure and fiber-reinforced thermoplastic polymers are prone to failure under creep loading due to high molecular mobility they possess, which renders lifetime prediction under creep loading crucial. Pure and short fiber-reinforced composites were shown to exhibit two main stress-dependent failure mechanisms depending on the magnitude of creep stress applied: plasticity-controlled and crack growth controlled failure mechanisms, which can be identified by comparing the lifetimes in static and cyclic fatigue at equal value of maximum stress [1]. In this work, the same procedure is applied to transversely loaded unidirectional (UD) composites for identification of failure mechanisms to develop lifetime prediction models and acceleration methods based on them. Plasticity controlled failure mechanism was observed for continuous fiber-reinforced UD composites as well.
Original languageEnglish
Title of host publicationProceedings of the 7th International Conference on Mechanics and Materials in Design
EditorsJ.F. Silva Gomes, S.A. Meguid
Pages593-594
Number of pages2
Publication statusPublished - 2017
Event7th International Conference on Mechanics and Materials in Design (M2D 2017) - Albufeira, Portugal
Duration: 11 Jun 201715 Jun 2017
Conference number: 7
https://paginas.fe.up.pt/clme/M2D2017/

Conference

Conference7th International Conference on Mechanics and Materials in Design (M2D 2017)
Abbreviated titleM2D2017
CountryPortugal
CityAlbufeira
Period11/06/1715/06/17
Internet address

Keywords

  • long-term
  • creep
  • thermoplastic
  • composite
  • lifetime

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