Export file:


  • RIS(for EndNote,Reference Manager,ProCite)
  • BibTex
  • Text


  • Citation Only
  • Citation and Abstract

Derivation, parameterization and validation of a creep deformation/rupture material constitutive model for SiC/SiC ceramic-matrix composites (CMCs)

Department of Mechanical Engineering, Clemson University, Clemson SC 29634, USA

Topical Section: Advanced composites

The present work deals with the development of material constitutive models for creep-deformation and creep-rupture of SiC/SiC ceramic-matrix composites (CMCs) under general three-dimensional stress states. The models derived are aimed for use in finite element analyses of the performance, durability and reliability of CMC turbine blades used in gas-turbine engines. Towards that end, one set of available experimental data pertaining to the effect of stress magnitude and temperature on the time-dependent creep deformation and rupture, available in the open literature, is used to derive and parameterize material constitutive models for creep-deformation and creep-rupture. The two models derived are validated by using additional experimental data, also available in the open literature. To enable the use of the newly-developed CMC creep-deformation and creep-rupture models within a structural finite-element framework, the models are implemented in a user-material subroutine which can be readily linked with a finite-element program/solver. In this way, the performance and reliability of CMC components used in high-temperature high-stress applications, such as those encountered in gas-turbine engines can be investigated computationally. Results of a preliminary finite-element analysis concerning the creep-deformation-induced contact between a gas-turbine engine blade and the shroud are presented and briefly discussed in the last portion of the paper. In this analysis, it is assumed that: (a) the blade is made of the SiC/SiC CMC; and (b) the creep-deformation behavior of the SiC/SiC CMC can be represented by the creep-deformation model developed in the present work.
  Article Metrics


1. Corman GS, Luthra KL (2006) Melt Infiltrated Ceramic Composites (HIPERCOMP®) For Gas Turbine Engine Applications, Continuous Fiber Ceramic Composites Program Phase II Final Report, Niskayuna, NY: GE Global Research, Technical Report DOE/CE/41000-2.

2. CFM International, LEAP Engine. Available from http://www.cfmaeroengines.com/engines/leap, accessed December 1, 2015.

3. GE Aviation, GE Successfully Tests World’s First Rotating Ceramic Matrix Composite Material for Next-Gen Combat Engine. Available from http://www.geaviation.com/press/military/military_20150210.html [accessed December 1, 2015].

4. Grujicic M, Galgalikar R, Snipes JS, et al. (2016) Creep-behavior-based material selection for a clamping spring of ceramic-matrix composite inner-shroud in utility and industrial gas-turbine engines. J Mater Des Appl.

5. Ashby MF, Abel CA (1995) Materials selection to resist creep. P Roy Soc A 351: 451–468.    

6. Ashby MF, Shercliff HR, Cebon D (2007) Materials: Engineering, science, processing and design. Oxford, UK: Butterworth-Heinemann.

7. Morscher GN (2010) Tensile creep and rupture of 2-D woven SiC/SiC composites for high temperature applications. J Eur Ceram Soc 30: 2209–2221.    

8. Morscher GN, Pujar VV (2006) Creep and stress-strain behavior after creep for SiC fiber reinforced, melt-infiltrated SiC matrix composites. J Am Ceram Soc 89: 1652–1658.    

9. Morscher GN, Ojard G, Miller R, et al. (2008) Tensile creep and fatigue of Sylramic-iBN melt-infiltrated SiC matrix composites: Retained properties, damage development, and failure mechanisms, Compos Sci Technol 68: 3305–3313.

10. van Roode, Bhattacharya AK, Ferber MK, et al. (2010) Creep Resistance and Water Vapor Degradation of SiC/SiC Ceramic Matrix Composite Gas Turbine Hot Section Components, Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air GT2010, June 14-18, 2010, Glasgow, UK.

11. Rospars C, Chermant JL, Ladevèze P (1998) On a first creep model for a 2D SiCf–SiC composite. Mater Sci Eng 250: 264–269.    

12. Rugg KL, Tressler RE, Bakis CE, et al. (1999) Creep of SiC-SiC Microcomposites. J Eur Ceram Soc 19: 2285–2296.    

13. Chermant JL, Boitier G, Darzens S, et al., (2002) The creep mechanism of ceramic matrix composites at low temperature and stress, by a material science approach. J Eur Ceram Soc 22: 2443–2460.    

14. Grujicic M, Galgalikar R, Snipes JS, et al. (2016) Multi-length-scale material model for SiC/SiC ceramic-matrix composites (CMCs): inclusion of in-service environmental effects. J Mater Eng Perform 25: 199–219.    

15. Casas L, Martinez-Esnaola JM (2003) Modelling the effect of oxidation on the creep behaviour of fibre-reinforced ceramic matrix composites. Acta Mater 51: 3745–3757.    

16. Takeda M, Imai Y, Ichikawa H, et al. (1999) Thermal stability of SiC fiber prepared by an irradiation curing process. Compos Sci Technol 59: 793–799.    

17. Grujicic M, Snipes JS, Galgalikar R, et al. (2015) Multi-length-scale derivation of the room-temperature material constitutive model for SiC/SiC ceramic-matrix composites (CMCs). J Mater: Des Appl [in press].

18. Grujicic M, Chenna V, Galgalikar R, et al. (2014) Computational analysis of gear-box roller-bearing white-etch cracking: a multi-physics approach. Inter J Struct Integrity 5: 290–327.    

19. Grujicic M, Ramaswami S, Yavari R, et al. (2016) Multi-physics computational analysis of white-etch cracking failure mode in wind-turbine gear-box bearings. J Mater Des Appl 230: 43–63.

20. Grujicic M, Galgalikar R, Ramaswami S, et al. (2015) Multi-Physics Modeling and Simulations of Reactive Melt Infiltration Process Used in Fabrication of Ceramic-Matrix Composites (CMCs). Multidiscip Mod Mater Struct 11: 43–74.

21. Grujicic M, Snipes JS, Yavari R, et al. (2015) Computational Investigation of Foreign Object Damage Sustained by Environmental Barrier Coatings (EBCs) and SiC/SiC Ceramic-Matrix Composites (CMCs). Multidiscip Mod Mater Struct 11: 238–272.

22. ABAQUS Version 6.14, (2014) User Documentation, Dassault Systèmes.

23. Grujicic M, Ramaswami S, Snipes JS, et al. (2013) Computational investigation of roller-bearing premature-failure in horizontal-axis wind-turbine gearboxes. Solids Struct 2: 47–56.

24. Grujicic M, Chenna V, Galgalikar R, et al. (2014) Wind-turbine gear-box roller-bearing premature-failure caused by grain-boundary hydrogen embrittlement: A multi-physics computational investigation. J Mater Eng Perform 23: 3984–4001.    

25. Grujicic M, Chenna V, Yavari R, et al. (2015) Multi-length scale computational analysis of roller-bearing premature failure in horizontal-axis wind-turbine gear-boxes. Int J Struct Integ 5: 40–72.

Copyright Info: © 2016, Mica Grujicic, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

Download full text in PDF

Export Citation

Article outline

Show full outline
Copyright © AIMS Press All Rights Reserved