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A new cumulative fatigue damage model for glass fibre reinforced plastic composites under step/discrete loading
journal contribution
posted on 2017-12-06, 00:00 authored by Jayantha EpaarachchiJayantha Epaarachchi, P ClausenThis paper presents and discusses a new fatigue damage accumulation model for Glass Fibre Reinforced Plastics under step loading. This model was formulated from a single-step constant amplitude fatigue model previously developed by the authors. Fatigue damage is defined and quantified in this paper. The model was tested using independent experimental data and predictions were found to be in excellent agreement with this data. The model was found to give a damage index closer to unity than Palmgren–Miner sum and the models proposed by Broutman and Sahu and Hashin and Rotem. The model predictions were also in excellent agreement with the two-stage fatigue data for carbon/epoxy composites [0/90, + 45 2, 0/90], suggesting that this model may be valid for composite systems other than GFRP.
Funding
Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)
History
Volume
36Issue
9Start Page
1236End Page
1245Number of Pages
10ISSN
1359-835XLocation
NetherlandsPublisher
ElsevierLanguage
en-ausPeer Reviewed
- Yes
Open Access
- No
External Author Affiliations
Faculty of Engineering and Physical Systems; TBA Research Institute; University of Newcastle;Era Eligible
- Yes