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Abstract

Residual deformations and stresses formation in the thermoset-laminated composite is a frequently studied subject in the recent years. During fabrication, the laminated composites undergo chemical deformation during cross-linking and thermal deformation while cooling. In thin laminates, due to large displacements and complex evolution of shape, these deformations can only be explained by using nonlinear strain–displacement relationship. In the present article, we calculated together for the first time, the thermal and chemical deformations occurring in carbon/epoxy laminates by considering a nonlinear geometrical approach to understand the evolution of shape and hence residual stresses induced during fabrication process. The effect of fibre fraction on the chemical and thermal deformations is studied as well.

Keywords

Carbon/epoxy laminate nonlinear geometrical behaviour laminate theory thermal/chemical curvature

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References

Ruiz

Trochu

. Numerical analysis of cure temperature and internal stresses in thin and thick RTM parts. Composites Part A 2005; 36: 806–826.

Wisnom

Gigliotti

Ersoy

. Mechanisms generating residual stresses and distortion during manufacture of polymer-matrix composite structures. Composites Part A 2006; 37: 522–529.

Sirivedin

Fenner

Nath

. Matrix crack propagation criteria for model short-carbon fibre/epoxy composites. Compos Sci Technol 2000; 60: 2835–2847.

Peeters

LJB

Powell

Warnet

. Thermally-induced shapes of unsymmetric laminates. J Compos Mater 1996; 30: 603–626.

Dano

M-L

Hyer

. Thermally-induced deformation behavior of unsymmetric laminates. Int J Solids Struct 1998; 35: 2101–2120.

Cho

Roh

. Non-linear analysis of the curved shapes of unsymmetric laminates accounting for slippage effects. Compos Sci Technol 2003; 63: 2265–2275.

Schlecht

Schulte

Hyer

. Advanced calculation of the room-temperature shapes of thin unsymmetric composite laminates. Compos Struct 1995; 32: 627–633.

Hyer

. Some observations on the cured shape of thin unsymmetric laminates. J Compos Mater 1981; 15: 175–194.

Jun

Hong

. Cured shape of unsymmetric laminates with arbitrary lay-up angles. J Reinf Plast Compos 1992; 11: 1352–1366.

10.

Bogetti

Gillespie

. Process-induced stress and deformation in thick-section thermoset composite laminates. J Compos Mater 1992; 26: 626–660.

11.

Abou Msallem

Jacquemin

Poitou

. Residual stresses formation during the manufacturing process of epoxy matrix composites: resin yield stress and anisotropic chemical shrinkage. Int J Mater Form 2010; 3: 1363–1372.

12.

Gigliotti

Wisnom

Potter

. Loss of bifurcation and multiple shapes of thin [0/90] unsymmetric composite plates subject to thermal stress. Compos Sci Technol 2004; 64: 109–128.

13.

Lee

Hsu

. Stability of saddle-like deformed configurations of plates and shallow shells. Int J Non-Linear Mech 1971; 6: 221–236.

14.

Antonucci

Cusano

Giordano

. Cure-induced residual strain build-up in a thermoset resin. Composites Part A 2006; 37: 592–601.

15.

Kröner

. Berechnung der elastischen Konstanten des Vielkristalls aus den Konstanten des Einkristalls. Z Phy A: Hadrons Nucl 1958; 151: 504–518.

16.

Eshelby

. The determination of the elastic field of an ellipsoidal inclusion, and related problems. Proc Roy Soc Lond Ser A Math Phys Sci 1957; 241: 376–396.

17.

Jacquemin

Freour

Guillen

. A hygroelastic self-consistent model for fiber-reinforced composites. J Reinf Plast Compos 2005; 24: 485–502.

18.

Hill

. The essential structure of constitutive laws for metal composites and polycrystals. J Mech Phys Solids 1967; 15: 79–95.

19.

Abou Msallem

Jacquemin

Boyard

. Material characterization and residual stresses simulation during the manufacturing process of epoxy matrix composites. Composites Part A 2010; 41: 108–115.

Evolution of chemical and thermal curvatures in thermoset-laminated composite plates during the fabrication process

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