Application and Theoretical Analysis of C/SiC Composites Based on Continuum Damage Mechanics
Based on the thermodynamic theory, an orthotropic damage constitutive model was developed to describe the nonlinear mechanical behavior of C/SiC composites. The different nonlinear kinematic and isotropic hardening functions were adopted to describe accurately the damage evolution processes. The damage variables were defined with the damaged modulus and the initial undamaged modulus on energy equivalence principle. The initial orthotropy and damage coupling were presented in the damage yield function. Tensile and in-plane shear loading and unloading tests were performed, and a good agreement between the model and the experimental results was achieved.
Keywordsorthotropic damage constitutive model C/SiC composites damage unrecoverable strain damage isotropic hardening damage kinematic hardening
Unable to display preview. Download preview PDF.
- 4.Warren, R., Ceramic Matrix Composites. Chapman & Hall: London, 1992.Google Scholar
- 5.Kachanov, L.M., Time of the rupture process under creep conditions. Izv. Akad. Nauk., S.R.S., Odt. Tekh. Nauk 8, 1958: 26–31.Google Scholar
- 10.Chaboche, J.L., Lesne, P.M. and Maire, J.F., Macroscopic modeling and damage processes in CMCs. Ceramic Transactions, 1995, 57: 65–75.Google Scholar
- 12.Raghavan, P. and Ghosh, S., A continuum damage mechanics model for unidirectional composites undergoing interfacial debonding. Mechanics of Materials, 2005, 37: 955–979.Google Scholar
- 13.Dinkier, D, Fink, A. and Kröplin, B., Constitutive laws for fiber reinforced ceramics. 1993, AIAA–93–5038.Google Scholar
- 30.Sidoroff, F., Description of anisotropic damage application to elasticity. IUTAM Colloquium on Physical Nonlinearities in Structural Analysis, Springer-Verlag, Berlin: In, 1981, 237–244.Google Scholar
- 33.Sidoroff, F., Description of Anisotropic Damage Application to Elasticity, IUTAM Colloqium on Physical Nonlinearities in Structural Analysis, Springer-Verlag, Berlin: In, 1981, 237–244.Google Scholar
- 35.Voyiadjis, G.Z. and Kattan, P.I., On the symmetrization of the effective stress tensor in continuum damage mechanics. Journal of Mechanics Behavior Materials, 1996, 7: 139–165.Google Scholar
- 38.Fan, J.P. and Deng, Z.X., Incremental anisotropic damage theory and its numerical analysis. Acta mechanica solida sinica, 2004, 25: 262–268.Google Scholar
- 39.Fu, Y.M. and Tian, Y.P., The elasto-plastic damage constitutive relations of orthotropic materials. Chinese Journal of Theoretical and Applied Mechanics, 2009, 41: 67–75.Google Scholar
- 50.Chang, Y.J., Jiao, G.Q. and Wang, B., Mechanical properties and damage process of a three-dimensional woven ceramic composite under in-plane shear loading. Journal of Inorganic Materials, 2007, 22: 113–118.Google Scholar