Abstract
This paper investigates the fatigue delamination growth behavior in woven glass fiber reinforced polymer (GFRP) composite laminates under mixed-mode I/II conditions at cryogenic temperatures. Fatigue delamination tests were performed with the mixed-mode bending (MMB) test apparatus at room temperature, liquid nitrogen temperature (77. K) and liquid helium temperature (4. K), in order to obtain the delamination growth rate as a function of the range of the energy release rate, and the dependence of the delamination growth behavior on the temperature and the mixed-mode ratio of mode I and mode II was examined. The energy release rate was evaluated using three-dimensional finite element analysis. The fractographic examinations by scanning electron microscopy (SEM) were also carried out to assess the mixed-mode fatigue delamination growth mechanisms in the woven GFRP laminates at cryogenic temperatures.
Original language | English |
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Pages (from-to) | 647-652 |
Number of pages | 6 |
Journal | Composites Science and Technology |
Volume | 71 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2011 Mar 22 |
Keywords
- A. Polymer-matrix composites (PMCs)
- B. Delamination
- B. Fatigue
- C. Finite element analysis (FEA)
- D. Fractography
ASJC Scopus subject areas
- Ceramics and Composites
- Engineering(all)