High-fidelity micromechanical modeling of the effects of defects on damage and creep behavior in single tow ceramic matrix composite

Abstract

Despite the superior properties of ceramic matrix composites (CMCs), their fabrication process generates inevitable defects with high density that significantly influence material integrity and residual useful life. Recent efforts have focused on CMC property prediction and investigation of their different inelastic mechanisms, but very limited work exists on understanding the influence of defects on inelastic responses of CMCs. Here, we introduce a three-dimensional micromechanics computational framework that includes experimentally informed material microstructure and architectural variabilities to investigate CMC response in the presence of manufacturing-induced defects. A developed microstructure generation algorithm is used to generate the representative volume elements in the micromechanics models from complex material morphology information obtained from extensive characterization studies of C/SiNC and SiC/SiNC CMCs. A fracture mechanics-informed matrix damage model is reformulated, in which the model considers the growth of porosity and microcracks in the as-received material. A progressive fiber damage model as well as Orthotropic viscoplasticity creep formulation are also utilized for the study. This methodology is implemented within the micromechanics framework to investigate the complex temperature- and time-dependent load transfer and damage mechanisms of CMCs under operation loading conditions. The developed framework explores the influence of as-received defects on the damage and creep behavior in service conditions. It also provides new insights into the effect of size, shape, distribution, and location of these defects on material response. The framework is then calibrated with unidirectional CMC minicomposite results available in the literature.

Keywords

Ceramic matrix composite micromechanics high-fidelity modeling damage creep defects

Get full access to this article

View all access options for this article.

References

Gowayed

Ojard

Prevost

, et al. Defects in ceramic matrix composites and their impact on elastic properties. Composites B: Eng 2013; 55: 167–175. Doi: 10.1016/j.compositesb.2013.06.026.

Del Puglia

Sheikh

Hayhurst

. Classification and quantification of initial porosity in a CMC laminate. Composites A: Appl Sci Manufacturing 2004; 35(2): 223–230. Doi: 10.1016/j.compositesa.2003.09.026.

Puglia

Sheikh

Hayhurst

. Modelling the degradation of thermal transport in a CMC material due to three different classes of porosity. Model Simulation Mater Sci Eng 2004; 12(2): 357–372. Doi: 10.1088/0965-0393/12/2/014.

Khafagy

Datta

Chattopadhyay

. Multiscale characterization and representation of variability in ceramic matrix composites. J Compos Mater 2021; 55(18): 2431–2441.

Santhosh

Gowayed

Ojard

, et al. Quantification of porosity in ceramic matrix composites using thermography. J Nondestructive Eval 2018; 37(2): 37. Doi: 10.1007/s10921-018-0487-z.

Aziz

Saury

Xuan

, et al. On the material characterization of a composite using micro CT image based finite element modeling. In: Nondestructive Eval Health Monit Aerospace Mater Composites, Civil Infrastructure V. International Society for Optics and Photonics, 2006. Doi: 10.1117/12.667766. 617605.

Santhosh

Ahmad

Ojard

, et al. Effect of porosity on the nonlinear and time-dependent behavior of Ceramic Matrix Composites. Composites Part B: Eng 2020; 184: 107658. Doi: 10.1016/j.compositesb.2019.107658.

Goldberg

Almansour

Sullivan

. Analytical simulation of effects of local mechanisms on tensile response of ceramic matrix minicomposites (No. E-19936), 2021.

Chateau

Gélébart

Bornert

, et al. Modeling of damage in unidirectional ceramic matrix composites and multi-scale experimental validation on third generation SiC/SiC minicomposites. J Mech Phys Sol 2014; 63: 298–319.

10.

Almansour

Maillet

Ramasamy

, et al. Effect of fiber content on single tow SiC minicomposite mechanical and damage properties using acoustic emission. J Eur Ceram Soc 2015; 35(13): 3389–3399.

11.

Yang

Zhang

, et al. In-situ tensile damage and fracture behavior of PIP SiC/SiC minicomposites at room temperature. J Eur Ceram Soc 2021; 41(14): 6869–6882.

12.

Swaminathan

McCarthy

Almansour

, et al. Microscale characterization of damage accumulation in CMCs. J Eur Ceram Soc 2021; 41(5): 3082–3093.

13.

Bheemreddy

Chandrashekhara

Dharani

, et al. Computational study of micromechanical damage behavior in continuous fiber-reinforced ceramic composites. J Mater Sci 2016; 51(18): 8610–8624.

14.

Skinner

Rai

Chattopadhyay

. Multiscale ceramic matrix composite thermomechanical damage model with fracture mechanics and internal state variables. Compos Structures 2020; 236: 111847.

15.

Almansour

Morscher

. Tensile creep behavior of SiCf/SiC ceramic matrix minicomposites. J Eur Ceram Soc 2020; 40(15): 5132–5146.

16.

Rugg

Tressler

Bakis

, et al. Creep of SiC–SiC microcomposites. J Eur Ceramic Society 1999; 19(13–14): 2285–2296.

17.

Holmes

. Elevated temperature creep behavior of continuous fiber-reinforced ceramics. In: High temperature mechanical behaviour of ceramic composites. Butterworth-Heinemann, 1995, pp. 193–259.

18.

Liu

Shi

Guo

, et al. Experimental and numerical study on creep behaviors of 2D twill woven quartz fiber/silica matrix composites. Ceramics Int 2021; 47(24): 34481–34491.

19.

Jing

Cheng

Niu

, et al. Deformation and rupture behaviors of SiC/SiC under creep, fatigue and dwell-fatigue load at 1300 °C. Ceramics Int 2019; 45(17): 21440–21447.

20.

Halverson

Curtin

. Stress rupture in ceramic-matrix composites: theory and experiment. J Am Ceram Soc 2002; 85(6): 1350–1365.

21.

Baxevanis

Charalambakis

. A micromechanically based model for damage-enhanced creep-rupture in continuous fiber-reinforced ceramic matrix composites. Mech Mater 2010; 42(5): 570–580.

22.

Khafagy

Sorini

Skinner

, et al. Modeling creep behavior in ceramic matrix composites. Ceramics Int 2021; 47(9): 12651–12660.

23.

Saucedo-Mora

Marrow

. Multi-scale damage modelling in a ceramic matrix composite using a finite-element microstructure meshfree methodology. Philosophical Trans R Soc A: Math Phys Eng Sci 2016; 374: 20150276.

24.

Shigang

Daining

Rujie

, et al. Effect of manufacturing defects on mechanical properties and failure features of 3D orthogonal woven C/C composites. Composites Part B: Eng 2015; 71: 113–121.

25.

Rubin

Vorobiev

Glenn

. Mechanical and numerical modeling of a porous elastic-viscoplastic material with tensile failure. Int J Sol Structures 2000; 37(13): 1841–1871.

26.

Tonge

Kimberley

Ramesh

. A consistent scaling framework for simulating high rate brittle failure problems. Proced Eng 2013; 58: 692–701.

27.

Curtin

. Theory of mechanical properties of ceramic-matrix composites. J Am Ceram Soc 1991; 74(11): 2837–2845.

28.

Bednarcyk

Arnold

. Micromechanics-based deformation and failure prediction for longitudinally reinforced titanium composites. Composites Sci Technology 2001; 61(5): 705–729.

29.

Hill

. A theory of the yielding and plastic flow of anisotropic metals. Proc R Soc Lond Ser A. Math Phys Sci 1948; 193(1033): 281–297.

30.

Bailey

. The utilization of creep test data in engineering design. Proc Inst Mech Eng 1935; 131(1): 131–349.

31.

Nutting

. A new general law of deformation. J Franklin Inst 1921; 191(5): 679–685.

32.

Nutting

. A study of elastic viscous deformation. Proc Am Soc. a Test Mater 1921; 21: 1162–1171.

33.

Khafagy

Chattopadhyay

. Effects of as-received defects on ceramic matrix composites properties using high-fidelity microstructures with periodic boundary conditions, 36th Tech Conf Am Soc Composites 2021: Composites Ingenuity Taking Challenges Environment-Energy-Economy. 2021. DEStech Publications, 2021, pp. 1293–1304.