Analytical evaluation of stress state in braided orthotropic composite cylinders under lateral compression
Source abstract
Abstract
Abstract This paper deals with the analytical modelling of elastic stress state inside RTM-moulded braided composite cylinders under lateral compression. Taking into account the radial stresses, our modelling is based on the Fourier series development of the π-periodic symmetric loading, deriving from the Hertzian contact law. The experimental part describes the quasi-static delamination under lateral compression of RTM-moulded carbon–epoxy rings, made from braided two-dimensional (2D) tubular preforms and DGEBA-IPD resin. The theoretical part shows a mesoscopic computation of transverse shear stresses is needed in order to explain the locations of the brittle failures. We eventually introduce the notion of an equivalent virtual major crack occurring at a critical value of displacement in order to provide a simplified representation of crack onset and energy release.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Epoxy Resin Curing Processes · Numerical methods in engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
Show source-provided references
1. Strength response of cylindrical composite shells subjected to out-of-plane loadings10.1177/002199838902300102 ↗
2. Katayama T, Hirai T. Analysis of fracture mechanism of FW ring under impact load. In: Proceedings of the 71st JSME fall annual meeting, 930-63A; 1993. p. 106–8.
3. Comparison of energy absorption of carbon/epoxy and carbon/PEEK composite tubes10.1016/0010-4361(92)90184-V ↗
4. A quasi-three-dimensional lateral compressive analysis method for a composite cylinder10.1016/0263-8223(95)00029-1 ↗
5. Lateral collapse of composite cylindrical tubes between flat platens10.1016/S0734-743X(99)00173-6 ↗
6. Boussinesq J. Application des potentials à l’étude de l’équilibre et du movement des solides élastiques. Albert Caquot, Paris: Librairie scientifique et technique Albert Blanchard; 1969. 723p.
7. Timoshenko · 1970
8. 2002
9. Genin E. Réalisation et caractérisations mécaniques de composites tubulaires carbone/époxyde à renfort tressés 3D et 2D. Rapport de stage, Ecole Centrale de Lyon; 2002.
10. 3D braided composites under lateral compression10.1016/j.compscitech.2004.06.007 ↗
11. Courbon J. Résistance des matériaux tome 1, 3e éd. Dunod, Paris; 1971. 783p.
12. Aublin M et al. Systèmes mécaniques Théorie et dimensionnement Dunod, Paris; 2001. 662p.
13. Abrate · 1998
14. Smooth indentation of orthotropic beams10.1016/0266-3538(89)90099-7 ↗
15. Strength or toughness? A criterion for crack onset at a notch10.1016/S0997-7538(01)01184-6 ↗