Modelling of the stress/strain behaviour of a carbon/carbon composite with a 2.5 dimensional fibre architecture under tensile and shear loads at room temperature

Siron, Olivier; Pailhès, Jérôme; Lamon, Jacques

doi:10.1016/s0266-3538(97)00241-8

Cited by 32 publications

(18 citation statements)

References 9 publications

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“…Fig. 7 presents a region composed of fibers and several layers of PyC matrix [26]. The anisotropy map shows the variation of the anisotropy between fibers with respect to the inclination.…”

Section: Validation Of the Methods On Inclined Carbon Fibersmentioning

confidence: 99%

“…First, we have studied a C f =C composite with a matrix obtained by several successive chemical vapor infiltration (CVI) runs, so that the pyrocarbon matrix is multilayered. The fibers were XN05 ex-PAN carbon fibers (from Nippon Graphite Fiber Co.), with a rather low modulus, and arranged as a stitched stack of woven plies [26]. The sample surface has been mechanically polished.…”

Section: Investigated Materialsmentioning

confidence: 99%

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A quantitative, space-resolved method for optical anisotropy estimation in bulk carbons

Gillard

Couégnat

Caty

et al. 2015

Carbon

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A B S T R A C TThis paper presents an innovative and quantitative method for characterization of bulk carbons using polarized light microscopy. It yields maps of transverse preferential orientation and quantitative transverse anisotropy. It can be utilized on any region observable with an optical microscope, at any attainable scale. It requires a set of micrographs from the same region of a carbon-based sample at different combinations of polarizer and analyzer positions. Applications of the technique to several actual carbon-based materials are presented and discussed.

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“…Fig. 7 presents a region composed of fibers and several layers of PyC matrix [26]. The anisotropy map shows the variation of the anisotropy between fibers with respect to the inclination.…”

Section: Validation Of the Methods On Inclined Carbon Fibersmentioning

confidence: 99%

Section: Investigated Materialsmentioning

confidence: 99%

A quantitative, space-resolved method for optical anisotropy estimation in bulk carbons

Gillard

Couégnat

Caty

et al. 2015

Carbon

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“…26,27 To date, a number of combined elasto-plastic damage models have been developed for the composites. [9][10][11]20,28,29 In this study, we establish the evolution laws of inelastic strain for the 2D plain-woven C/SiC composite based on the plastic model proposed by Chen et al, 24 in which an isotropic hardening law is adopted and the hysteresis effect is neglected. The ''plastic'' yield function f in terms of the effective stress tensorr is defined as follows:…”

Section: Evolution Law Of Inelastic Strainmentioning

confidence: 99%

Damage characteristics and constitutive modeling of the 2D C/SiC composite: Part II – Material model and numerical implementation

Jiao

Wang

et al. 2015

Chinese Journal of Aeronautics

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In this work, a macroscopic non-linear constitutive model accounting for damage, inelastic strain and unilateral behavior is proposed for the 2D plain-woven C/SiC composite. A set of scalar damage variables and a new thermodynamic potential expression are introduced in the framework of continuum damage mechanics. In the deduced constitutive equations, the material's progressive damage deactivation behavior during the compression loading is described by a continuous function, and different deactivation rates under uniaxial and biaxial compression loadings are also considered. In damage evolution laws, the coupling effect among the damage modes and impediment effect of compression stress on the development of shear damage in different plane stress states are taken into account. Besides, the general plasticity theory is applied to describing the evolution of inelastic strain in tension and/or shear stress state. The Tsai-Wu failure criterion is adopted for strength analysis. Additionally, the material model is implemented as a user-defined material subroutine (UMAT) and linked to the ABAQUS finite element software, and its performance is demonstrated through several numerical examples. ª 2015 Production and hosting by Elsevier Ltd. on behalf of CSAA & BUAA.

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“…In a woven ply, intra-bundle and inter-bundle in-plane cracks can develop, the latter often resulting in inter-bundle delamination [33][34][35][36]. This is not the same as inter-ply delamination which has the effect of reducing the inter-ply stiffness but has no effect on the actual properties of the woven ply material.…”

Section: Transverse Damagementioning

confidence: 99%

Modelling impact damage in marine composite panels

Johnson

Louca

Mouring

et al. 2009

International Journal of Impact Engineering

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Modelling of the stress/strain behaviour of a carbon/carbon composite with a 2.5 dimensional fibre architecture under tensile and shear loads at room temperature

Cited by 32 publications

References 9 publications

A quantitative, space-resolved method for optical anisotropy estimation in bulk carbons

A quantitative, space-resolved method for optical anisotropy estimation in bulk carbons

Damage characteristics and constitutive modeling of the 2D C/SiC composite: Part II – Material model and numerical implementation

Modelling impact damage in marine composite panels

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