Development and validation of an anisotropic damage constitutive model for C/SiC composite

Yang, Qiang; Han, Xianhong; Xu, Chenghai; Xie, Weihua; Meng, Sheng

doi:10.1016/j.ceramint.2018.09.081

Cited by 16 publications

(6 citation statements)

References 24 publications

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“…Substitution of Eqs. (6) and (16) into Equation (14) leads to the following principal ones for the transformed compliances:…”

Section: Relations In Equationmentioning

confidence: 99%

“…In recent years, several more CDM models have been proposed for C/SiC, SiC/SiC, and oxide/oxide CMCs. [13][14][15][16][17][18][19][20] The damage evolution behavior and stiffness degradation laws were characterized, and finally the anisotropic stressstrain relationships were described. In those models, the effective damage variables that reflect stiffness variation were formulated as functions of thermodynamic forces based on damage coupling method, 21 which is seldom used to reveal the microscopic damage mechanisms.…”

Section: Introductionmentioning

confidence: 99%

“…Since observed nonlinearity of CMCs actually relates to the progressive propagation and deflection of microcracks, continuum damage mechanics (CDM) model is therefore suitable for predicting the constitutive behavior of such composite materials. In recent years, several more CDM models have been proposed for C/SiC, SiC/SiC, and oxide/oxide CMCs 13‐20 . The damage evolution behavior and stiffness degradation laws were characterized, and finally the anisotropic stress‐strain relationships were described.…”

Section: Introductionmentioning

confidence: 99%

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Constitutive model and failure criterion for orthotropic ceramic matrix composites under macroscopic plane stress

et al. 2020

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To predict the nonlinear stress-strain behavior and the rupture strength of orthotropic ceramic matrix composites (CMCs) under macroscopic plane stress, a concise damage-based mechanical theory including a new constitutive model and two kinds of failure criteria was developed in the framework of continuum damage mechanics (CDM). The damage constitutive model was established using strain partitioning and damage decoupling methods. Meanwhile, the failure criteria were formulated in terms of damage energy release rate (DERR) in order to correlate the failure property of CMCs with damage driving forces, and the maximum DERR criterion and the interactive DERR criterion were suggested simultaneously. For the sake of model evaluation, the theory was applied to a typical CMC with damageable and nonlinear behavior, that is, 2D-C/SiC. The damage evolution law, strain response and rupture strength under incremental cyclic tension along both on-axis and off-axis directions were completely investigated. Comparison between theoretical predictions and experimental data illustrates that the newly developed mechanical theory is potential to give reasonable and accurate results of both stress-strain response and failure property for orthotropic CMCs.

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“…Substitution of Eqs. (6) and (16) into Equation (14) leads to the following principal ones for the transformed compliances:…”

Section: Relations In Equationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Constitutive model and failure criterion for orthotropic ceramic matrix composites under macroscopic plane stress

et al. 2020

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“…Some scholars have established macroscopic anisotropic damage models on the thermodynamic framework and considered the unilateral effect of microcrack closure. A set of scalar damage variables (Li et al, 2015;Yang et al, 2018) or a high order tensor damage variable (Bielski et al, 2006;Desmorat, 2016;Fassin et al, 2019;Panteleev et al, 2021;Pituba, 2015) have been introduced to describe anisotropy. Some scholars have established a double scalar damage model that uses different damage variables to describe the mechanical behaviour of materials according to their states of compression or tension (Cervera et al, 1995;Cervera and Tesei, 2017;Ganczarski and Barwacz, 2007;Wosatko et al, 2018;Wu and Cervera, 2018).…”

Section: Introductionmentioning

confidence: 99%

Creep damage model considering unilateral effect based on bimodulus theory

Guo

Liu

et al. 2021

International Journal of Damage Mechanics

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Based on the continuous damage mechanics (CDM) theory, Ambartsumyan bimodulus theory and creep damage theory, a bimodulus creep damage constitutive model is proposed in this paper. The model is able to describe the damage-induced unilateral behaviour related to the microdefect closure effect. The unilateral behaviour is considered a special bimodulus property. By judging the tension or compression state in bimodulus theory, different elasticity properties matrixes are selected according to signs of principal stresses. Then, an elasticity properties matrix is linearly converted to a general stress space. The model effectively solves the difficulty of determining tension or compression in complex stress states when the unilateral effect of damage is considered in the analysis of actual structures. The tangent elasticity matrix is used to improve the convergence of the proposed algorithm. In this study, a numerical simulation of the proposed model is achieved by writing subroutines in the FORTRAN language. A numerical example of a hole-in-plate structure under uniaxial stress is analysed. By comparing the results with those obtained by the traditional model, which does not consider the unilateral effect of damage, it is demonstrated that the proposed model is capable of describing the damage-induced unilateral behaviour related to microcracked closure effects. The numerical example validates the effectiveness and realizability of the proposed model.

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“…Due to the combination of temperature, strain rate, and damage growth effects, it is difficult to describe the mechanical behaviors quantitatively over a wide range of strain rate and temperature, especially above T g . Although lots of studies have been applied to the constitutive model, few of them took the coupling effects of temperature, strain rate, and damage growth into consideration. To further study the constitutive behaviors of woven composite, including the temperature, strain rate, and damage growth effects, we first investigated the thermomechanical behavior of 4‐harness satin weave (4HS) fabrics under in‐plane compression over a broad range of strain rate and temperature.…”

Section: Introductionmentioning

confidence: 99%

Damage growth‐based constitutive model of satin weave composites under different temperatures and strain rates

Guo

Wang

et al. 2019

J of Applied Polymer Sci

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In this study, a constitutive model, which took into account the temperature and strain rate dependences of progressive damage behavior, was developed to describe the compressive behavior of satin weave carbon/epoxy composites over the temperature range of 298-448 K and strain rate range of 0.001-1100 s −1 . To further understand the mechanical behavior of satin weave carbon/epoxy composites, systematic experiments were first conducted using electronic universal testing machine and enhanced split Hopkinson pressure bar (SHPB) system. In addition, the progressive damage mechanism was observed with scanning electron microscope (SEM) and digital image correlation (DIC) technique. Results showed that the modulus and damage growth of composites are temperature and strain rate sensitive. Under quasi-static compression, failure mode changed from shear fracture to kink-band formation with increasing temperature. Samples failed predominantly by delamination under dynamic compression. It is shown that the mechanical behavior of satin weave composites obtained by the constitutive model agrees well with the experimental data over a wide range of temperature and strain rate.

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Development and validation of an anisotropic damage constitutive model for C/SiC composite

Cited by 16 publications

References 24 publications

Constitutive model and failure criterion for orthotropic ceramic matrix composites under macroscopic plane stress

Constitutive model and failure criterion for orthotropic ceramic matrix composites under macroscopic plane stress

Creep damage model considering unilateral effect based on bimodulus theory

Damage growth‐based constitutive model of satin weave composites under different temperatures and strain rates

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