Analysis of Crack Propagation in Composite Materials Using Mixed Finite Elements

This study investigates the application of fracture mechanics to analyze cracked structures, particularly focusing on cracks along interfaces in multilayer materials. Assuming perfectly plastic elastic behavior, small displacements, and plane structures, the research employs a new mixed finite eleme...

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Main Authors: Bougueroua Ahmed, Bouzerd Hamoudi
Format: Article
Language:English
Published: Sciendo 2024-12-01
Series:Selected Scientific Papers: Journal of Civil Engineering
Subjects:
Online Access:https://doi.org/10.2478/sspjce-2024-0013
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author Bougueroua Ahmed
Bouzerd Hamoudi
author_facet Bougueroua Ahmed
Bouzerd Hamoudi
author_sort Bougueroua Ahmed
collection DOAJ
description This study investigates the application of fracture mechanics to analyze cracked structures, particularly focusing on cracks along interfaces in multilayer materials. Assuming perfectly plastic elastic behavior, small displacements, and plane structures, the research employs a new mixed finite element, RMQ-7, derived from Reissner’s variational principle. The RMQ-7 element, designed to model both the free edge effect along the crack and continuity in the rest of the material, is used in conjunction with the virtual crack extension method to evaluate the energy release rate and the size of the plastic zone around the crack tip.
format Article
id doaj-art-9209e3f8fde94bd3b133a21279a561a0
institution Kabale University
issn 1338-7278
language English
publishDate 2024-12-01
publisher Sciendo
record_format Article
series Selected Scientific Papers: Journal of Civil Engineering
spelling doaj-art-9209e3f8fde94bd3b133a21279a561a02025-01-07T07:56:59ZengSciendoSelected Scientific Papers: Journal of Civil Engineering1338-72782024-12-0119110.2478/sspjce-2024-0013Analysis of Crack Propagation in Composite Materials Using Mixed Finite ElementsBougueroua Ahmed0Bouzerd Hamoudi1University 20 August 1955, Skikda, AlgeriaUniversity 20 August 1955, Skikda, AlgeriaThis study investigates the application of fracture mechanics to analyze cracked structures, particularly focusing on cracks along interfaces in multilayer materials. Assuming perfectly plastic elastic behavior, small displacements, and plane structures, the research employs a new mixed finite element, RMQ-7, derived from Reissner’s variational principle. The RMQ-7 element, designed to model both the free edge effect along the crack and continuity in the rest of the material, is used in conjunction with the virtual crack extension method to evaluate the energy release rate and the size of the plastic zone around the crack tip.https://doi.org/10.2478/sspjce-2024-0013fracture mechanicsmixed finite elementrmq-7 elementinterface cracksplastic zone energy release rate.
spellingShingle Bougueroua Ahmed
Bouzerd Hamoudi
Analysis of Crack Propagation in Composite Materials Using Mixed Finite Elements
Selected Scientific Papers: Journal of Civil Engineering
fracture mechanics
mixed finite element
rmq-7 element
interface cracks
plastic zone energy release rate.
title Analysis of Crack Propagation in Composite Materials Using Mixed Finite Elements
title_full Analysis of Crack Propagation in Composite Materials Using Mixed Finite Elements
title_fullStr Analysis of Crack Propagation in Composite Materials Using Mixed Finite Elements
title_full_unstemmed Analysis of Crack Propagation in Composite Materials Using Mixed Finite Elements
title_short Analysis of Crack Propagation in Composite Materials Using Mixed Finite Elements
title_sort analysis of crack propagation in composite materials using mixed finite elements
topic fracture mechanics
mixed finite element
rmq-7 element
interface cracks
plastic zone energy release rate.
url https://doi.org/10.2478/sspjce-2024-0013
work_keys_str_mv AT bouguerouaahmed analysisofcrackpropagationincompositematerialsusingmixedfiniteelements
AT bouzerdhamoudi analysisofcrackpropagationincompositematerialsusingmixedfiniteelements