skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Cohesive Modeling of Dynamic Crack Growth in Homogeneous and Functionally Graded Materials

Abstract

This paper presents a Cohesive Zone Model (CZM) approach for investigating dynamic crack propagation in homogeneous and Functionally Graded Materials (FGMs). The failure criterion is incorporated in the CZM using both a finite cohesive strength and work to fracture in the material description. A novel CZM for FGMs is explored and incorporated into a finite element framework. The material gradation is approximated at the element level using a graded element formulation. A numerical example is provided to demonstrate the efficacy of the CZM approach, in which the influence of the material gradation on the crack growth pattern is studied.

Authors:
;  [1];  [2]
  1. Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Newmark Laboratory, 205 North Mathews Avenue, Urbana, IL 61801 (United States)
  2. Tecgraf/PUC-Rio Computer Science Department, Pontifical Catholic University of Rio de Janeiro, Rua Marques de Sao Vicente 225, Rio de Janeiro, RJ, 22450-900 (Brazil)
Publication Date:
OSTI Identifier:
21055265
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 973; Journal Issue: 1; Conference: M and FGM 2006: Conference on multiscale and funtionally graded materials 2006, Oahu Island, HI (United States), 15-18 Oct 2006; Other Information: DOI: 10.1063/1.2896840; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPUTERIZED SIMULATION; CRACK PROPAGATION; CRACKS; FATIGUE; FINITE ELEMENT METHOD; FRACTURE MECHANICS; FRACTURES; MATERIALS TESTING; MATHEMATICAL MODELS; MODIFICATIONS; ZONES

Citation Formats

Zhengyu, Zhang, Paulino, Glaucio H, and Celes, Waldemar. Cohesive Modeling of Dynamic Crack Growth in Homogeneous and Functionally Graded Materials. United States: N. p., 2008. Web. doi:10.1063/1.2896840.
Zhengyu, Zhang, Paulino, Glaucio H, & Celes, Waldemar. Cohesive Modeling of Dynamic Crack Growth in Homogeneous and Functionally Graded Materials. United States. https://doi.org/10.1063/1.2896840
Zhengyu, Zhang, Paulino, Glaucio H, and Celes, Waldemar. 2008. "Cohesive Modeling of Dynamic Crack Growth in Homogeneous and Functionally Graded Materials". United States. https://doi.org/10.1063/1.2896840.
@article{osti_21055265,
title = {Cohesive Modeling of Dynamic Crack Growth in Homogeneous and Functionally Graded Materials},
author = {Zhengyu, Zhang and Paulino, Glaucio H and Celes, Waldemar},
abstractNote = {This paper presents a Cohesive Zone Model (CZM) approach for investigating dynamic crack propagation in homogeneous and Functionally Graded Materials (FGMs). The failure criterion is incorporated in the CZM using both a finite cohesive strength and work to fracture in the material description. A novel CZM for FGMs is explored and incorporated into a finite element framework. The material gradation is approximated at the element level using a graded element formulation. A numerical example is provided to demonstrate the efficacy of the CZM approach, in which the influence of the material gradation on the crack growth pattern is studied.},
doi = {10.1063/1.2896840},
url = {https://www.osti.gov/biblio/21055265}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 973,
place = {United States},
year = {Fri Feb 15 00:00:00 EST 2008},
month = {Fri Feb 15 00:00:00 EST 2008}
}