Modelling of fiber metal laminate (FML) composite using the residual stiffness and strength model

Shahrum Abdullah, A. Fahruddin, J. Syarif, Mohd. Zaidi Omar

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The fatigue behavior of FML composite is so diverse and complex that present knowledge is far from complete. Two commonly used approaches to model fatigue damage are residual stiffness and the residual strength approach. In this paper, residual stiffness and the residual strength model is simulated. The model approach is in way: the damage growth rate-a measure for stiffness loss- is expressed by two separate terms representing the initiation and propagation phase of damage respectively. The model is capable of simulating the three stages of stiffness degradation: initial decline, gradual reduction, and final failure, as well as the stress redistribution due to the loss of stiffness in the damaged zones. The experiment also was carried out in this study.

Original languageEnglish
Pages (from-to)186-190
Number of pages5
JournalInternational Journal of Mechanical and Materials Engineering
Volume4
Issue number2
Publication statusPublished - 2009

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Laminates
Metals
Stiffness
Fibers
Composite materials
Fatigue damage
Fatigue of materials
Degradation
Experiments

Keywords

  • Composite
  • Fatigue
  • FML
  • Residual stiffness and the residual strength model

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

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AU - Syarif, J.

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PY - 2009

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N2 - The fatigue behavior of FML composite is so diverse and complex that present knowledge is far from complete. Two commonly used approaches to model fatigue damage are residual stiffness and the residual strength approach. In this paper, residual stiffness and the residual strength model is simulated. The model approach is in way: the damage growth rate-a measure for stiffness loss- is expressed by two separate terms representing the initiation and propagation phase of damage respectively. The model is capable of simulating the three stages of stiffness degradation: initial decline, gradual reduction, and final failure, as well as the stress redistribution due to the loss of stiffness in the damaged zones. The experiment also was carried out in this study.

AB - The fatigue behavior of FML composite is so diverse and complex that present knowledge is far from complete. Two commonly used approaches to model fatigue damage are residual stiffness and the residual strength approach. In this paper, residual stiffness and the residual strength model is simulated. The model approach is in way: the damage growth rate-a measure for stiffness loss- is expressed by two separate terms representing the initiation and propagation phase of damage respectively. The model is capable of simulating the three stages of stiffness degradation: initial decline, gradual reduction, and final failure, as well as the stress redistribution due to the loss of stiffness in the damaged zones. The experiment also was carried out in this study.

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