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Stochastic microstructural analysis of ceramic matrix composites using a high-fidelity multiscale framework

Conference · · AIAA Scitech 2021 Forum
DOI:https://doi.org/10.2514/6.2021-1350· OSTI ID:2396357
 [1];  [2];  [2];  [2];  [2]
  1. Arizona State University, Tempe, AZ (United States); Arizona State University
  2. Arizona State University, Tempe, AZ (United States)
+ Show Author Affiliations
This paper presents a high-fidelity multiscale framework to simulate the mechanical behavior of ceramic matrix composites (CMCs), accounting for the complex micromorphology captured using detailed material characterization. First, high-resolution micrographs are obtained for the specific carbon fiber silicon-carbide-nitride matrix (C/SiNC) CMC to characterize the variability of the architectural features and manufacturing-induced defects at the microscale. An image processing algorithm is then used to precisely estimate the size and distribution of all subscale features and defects from the micrographs. The information is then used to generate a three-dimensional stochastic representative volume element (SRVE) to reconstruct microscale constituents accounting for the variability. As a result, the generated SRVEs are simulated using the high-fidelity generalized method of cells (HFGMC) micromechanics theory to investigate the effects of defects on the elastic properties of C/SiNC CMCs.
Research Organization:
Arizona State University, Tempe, AZ (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FE0031759
OSTI ID:
2396357
Report Number(s):
DOE--0031759
Conference Information:
Journal Name: AIAA Scitech 2021 Forum
Country of Publication:
United States
Language:
English

References (9)

Classification and quantification of initial porosity in a CMC laminate journal February 2004
Linear Thermoelastic Higher-Order Theory for Periodic Multiphase Materials journal February 2001
Defects in ceramic matrix composites and their impact on elastic properties journal December 2013
Tensile behavior of 2D-C/SiC composites at elevated temperatures: Experiment and modeling journal April 2017
Effects of microstructural variability on thermo-mechanical properties of a woven ceramic matrix composite journal January 2014
Quantification of Porosity in Ceramic Matrix Composites Using Thermography journal May 2018
Multiscale model of woven ceramic matrix composites considering manufacturing induced damage journal August 2015
Effect of porosity on the nonlinear and time-dependent behavior of Ceramic Matrix Composites journal March 2020
An efficient implementation of the high-fidelity generalized method of cells for complex microstructures journal January 2021

Figures / Tables (8)

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Table 1(p. 6)table Table 1

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Related Subjects

Ceramic Matrix Composites
Critical Loading
High Performance Computing
Image Segmentation
Material Properties
Mechanical Properties
Micromechanics
Microstructure
Probability Distribution Functions
Scanning Electron Microscope