Numerical simulation of damage progression and fracture in structures made of 3D woven ceramic matrix composites

This paper proposes numerical simulation to predict damage progression and critical strength in structural components made of 3D woven ceramic matrix composites (CMCs). This method implements three numerical approaches with the commercial finite element method. (i) Damage models are used to predict damage initiation and propagation of CMCs. (ii) The failure criterion based on the Weibull volumetric statistical strength model is implemented to take into account the size effects of fiber-bundle strength. (iii) The nonlocal damage theory is implemented to confirm the mesh independence of the results and the convergence of computation. To verify the accuracy of the two damage models, simulations of smooth SiC/SiC specimens were performed. Furthermore, several kinds of open-hole SiC/SiC tensile test were simulated to verify the accuracy of the proposed numerical simulation. Finally, the proposed numerical simulation was validated by detailed comparisons of experiment and simulation.

[1]  J.-F. Maire,et al.  Development of a Macroscopic Damage Model for Woven Ceramic Matrix Composites , 2011 .

[2]  Michael R Wisnom,et al.  An experimental and numerical investigation into the damage mechanisms in notched composites , 2009 .

[3]  M. Zikry,et al.  Low-velocity impact damage progression in woven E-glass composite systems , 2005 .

[4]  Milan Jirásek,et al.  Nonlocal integral formulations of plasticity and damage : Survey of progress , 2002 .

[5]  J.-L. Chaboche,et al.  A new micromechanics based CDM model and its application to CMC's , 2002 .

[6]  J. Chaboche,et al.  New progress in micromechanics-based CDM models and their application to CMCs , 2001 .

[7]  H. Kaya.  The application of ceramic-matrix composites to the automotive ceramic gas turbine , 1999 .

[8]  Hisaichi Ohnabe,et al.  Potential application of ceramic matrix composites to aero-engine components , 1999 .

[9]  J. Chaboche,et al.  A new formulation of continuum damage mechanics (CDM) for composite materials , 1997 .

[10]  Michael R Wisnom,et al.  Reduction in tensile and flexural strength of unidirectional glass fibre-epoxy with increasing specimen size , 1997 .

[11]  Sumio Murakami,et al.  Constitutive and damage evolution equations of elastic-brittle materials based on irreversible thermodynamics , 1997 .

[12]  J. Betten,et al.  On Damage Effective Stress and Equivalence Hypothesis , 1996 .

[13]  J.-F. Maire,et al.  Continuum Damage Mechanics, Anisotropy and Damage Deactivation for Brittle Materials Like Concrete and Ceramic Composites , 1995 .

[14]  Michael R Wisnom,et al.  The Relationship between Tensile and Flexural Strength of Unidirectional Composites , 1992 .

[15]  Z. Bažant,et al.  Nonlocal Continuum Damage, Localization Instability and Convergence , 1988 .

[16]  L. S. Costin,et al.  Detecting Damage Surfaces in Brittle Materials Using Acoustic Emissions , 1986 .

[17]  A. Eringen,et al.  On nonlocal elasticity , 1972 .

[18]  村上 澄男,et al.  Continuum damage mechanics : a continuum mechanics approach to the analysis of damage and fracture , 2012 .

[19]  Sumio Murakami,et al.  Continuum Damage Mechanics , 2012 .

[20]  J.-F. Maire,et al.  An explicit damage model for the design of composites structures , 1998 .

[21]  F. Leckie.  A course on damage mechanics , 1998 .

[22]  B. N. Cox,et al.  On the tensile failure of 3D woven composites , 1996 .

[23]  C. Oytana,et al.  Continuum damage mechanics for microcracked composites , 1993 .

[24]  Michael R Wisnom,et al.  Relationship between strength variability and size effect in unidirectional carbon fibre/epoxy , 1991 .

[25]  C. L. Chow,et al.  On evolution laws of anisotropic damage , 1989 .