Computational Study of Micromechanical Damage Behavior in Continuous Fiber-Resuborced Ceramic Composites

Venkata P. Bheemreddy; K. Chandrashekhara; Lokeswarappa R. Dharani; Greg Hilmas

doi:10.1007/s10853-016-0120-4

Computational Study of Micromechanical Damage Behavior in Continuous Fiber-Resuborced Ceramic Composites

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Abstract

A comprehensive numerical analysis of micromechanical damage behavior in a continuous fiber-resuborced ceramic composite is presented. A three-dimensional micromechanical finite element modeling procedure is developed for effective elastic property estimation and damage evaluation by the example of a composite consisting of a silicon carbide matrix unidirectionally resuborced with silicon carbide fiber (SiC/SiC _f ). The effect of a fiber/matrix interface on predicted elastic properties of the SiC/SiC _f composite is considered. Representative volume element (RVE) models are developed for an SiC/SiC _f composite with damageable interfaces. Statistically equivalent RVE models with randomly distributed fibers are generated using a developed algorithm. The statistical variability of fiber and matrix strengths is considered in developing RVE models and assumed to follow a Weibull probability law. A user-material subroutine with an adaptive material constitutive law is developed to predict damage behavior in the RVE. The predicted uniaxial stress versus strain behavior and damage in the composite are discussed.

Original language	American English
Pages (from-to)	8610-8624
Number of pages	15
Journal	Journal of Materials Science
Volume	51
Issue number	18
DOIs	https://doi.org/10.1007/s10853-016-0120-4
State	Published - Sep 1 2016

Keywords

Elasticity
Fibers
Finite element method
Resuborcement
Silicon carbide
Weibull distribution
Continuous fiber-resuborced ceramic composites
Effective elastic property
Fiber/matrix interface
Micromechanical damage
Micromechanical finite element model
Representative volume element (RVE)
Statistical variability
User material subroutine
Ceramic materials

Disciplines

Materials Science and Engineering
Mechanical Engineering

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https://doi.org/10.1007/s10853-016-0120-4

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@article{08e72aa0d40c4af78e7a6278e94c6edf,

title = "Computational Study of Micromechanical Damage Behavior in Continuous Fiber-Resuborced Ceramic Composites",

abstract = " A comprehensive numerical analysis of micromechanical damage behavior in a continuous fiber-resuborced ceramic composite is presented. A three-dimensional micromechanical finite element modeling procedure is developed for effective elastic property estimation and damage evaluation by the example of a composite consisting of a silicon carbide matrix unidirectionally resuborced with silicon carbide fiber (SiC/SiC f ). The effect of a fiber/matrix interface on predicted elastic properties of the SiC/SiC f composite is considered. Representative volume element (RVE) models are developed for an SiC/SiC f composite with damageable interfaces. Statistically equivalent RVE models with randomly distributed fibers are generated using a developed algorithm. The statistical variability of fiber and matrix strengths is considered in developing RVE models and assumed to follow a Weibull probability law. A user-material subroutine with an adaptive material constitutive law is developed to predict damage behavior in the RVE. The predicted uniaxial stress versus strain behavior and damage in the composite are discussed.",

keywords = "Elasticity, Fibers, Finite element method, Resuborcement, Silicon carbide, Weibull distribution, Continuous fiber-resuborced ceramic composites, Effective elastic property, Fiber/matrix interface, Micromechanical damage, Micromechanical finite element model, Representative volume element (RVE), Statistical variability, User material subroutine, Ceramic materials",

author = "Bheemreddy, \{Venkata P.\} and K. Chandrashekhara and Dharani, \{Lokeswarappa R.\} and Greg Hilmas",

note = "Publisher Copyright: {\textcopyright} 2016, Springer Science+Business Media New York.",

year = "2016",

month = sep,

day = "1",

doi = "10.1007/s10853-016-0120-4",

language = "American English",

volume = "51",

pages = "8610--8624",

journal = "Journal of Materials Science",

number = "18",

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TY - JOUR

T1 - Computational Study of Micromechanical Damage Behavior in Continuous Fiber-Resuborced Ceramic Composites

AU - Bheemreddy, Venkata P.

AU - Chandrashekhara, K.

AU - Dharani, Lokeswarappa R.

AU - Hilmas, Greg

PY - 2016/9/1

Y1 - 2016/9/1

N2 - A comprehensive numerical analysis of micromechanical damage behavior in a continuous fiber-resuborced ceramic composite is presented. A three-dimensional micromechanical finite element modeling procedure is developed for effective elastic property estimation and damage evaluation by the example of a composite consisting of a silicon carbide matrix unidirectionally resuborced with silicon carbide fiber (SiC/SiC f ). The effect of a fiber/matrix interface on predicted elastic properties of the SiC/SiC f composite is considered. Representative volume element (RVE) models are developed for an SiC/SiC f composite with damageable interfaces. Statistically equivalent RVE models with randomly distributed fibers are generated using a developed algorithm. The statistical variability of fiber and matrix strengths is considered in developing RVE models and assumed to follow a Weibull probability law. A user-material subroutine with an adaptive material constitutive law is developed to predict damage behavior in the RVE. The predicted uniaxial stress versus strain behavior and damage in the composite are discussed.

AB - A comprehensive numerical analysis of micromechanical damage behavior in a continuous fiber-resuborced ceramic composite is presented. A three-dimensional micromechanical finite element modeling procedure is developed for effective elastic property estimation and damage evaluation by the example of a composite consisting of a silicon carbide matrix unidirectionally resuborced with silicon carbide fiber (SiC/SiC f ). The effect of a fiber/matrix interface on predicted elastic properties of the SiC/SiC f composite is considered. Representative volume element (RVE) models are developed for an SiC/SiC f composite with damageable interfaces. Statistically equivalent RVE models with randomly distributed fibers are generated using a developed algorithm. The statistical variability of fiber and matrix strengths is considered in developing RVE models and assumed to follow a Weibull probability law. A user-material subroutine with an adaptive material constitutive law is developed to predict damage behavior in the RVE. The predicted uniaxial stress versus strain behavior and damage in the composite are discussed.

KW - Elasticity

KW - Fibers

KW - Finite element method

KW - Resuborcement

KW - Silicon carbide

KW - Weibull distribution

KW - Continuous fiber-resuborced ceramic composites

KW - Effective elastic property

KW - Fiber/matrix interface

KW - Micromechanical damage

KW - Micromechanical finite element model

KW - Representative volume element (RVE)

KW - Statistical variability

KW - User material subroutine

KW - Ceramic materials

UR - https://scholarsmine.mst.edu/mec_aereng_facwork/3627

UR - https://doi.org/10.1007/s10853-016-0120-4

U2 - 10.1007/s10853-016-0120-4

DO - 10.1007/s10853-016-0120-4

M3 - Article

VL - 51

SP - 8610

EP - 8624

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 18

ER -

Computational Study of Micromechanical Damage Behavior in Continuous Fiber-Resuborced Ceramic Composites

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