A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect

Wenjiao Zhang; Zhengong Zhou; Fabrizio Scarpa; Shuyuan Zhao

doi:10.1016/j.matdes.2016.06.040

A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect

Wenjiao Zhang^*, Zhengong Zhou, Fabrizio Scarpa, Shuyuan Zhao

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

This work presents a fatigue damage meso-model for fiber-reinforced plastic composites, in which the effect of stress ratios on the off-axis fatigue behavior is taken into account. The non-dimensional effective stress concept is introduced in the continuum damage mechanics method. Damage growths and fatigue failure are studied along axial, transverse and shear directions at meso-scale level. The proposed model is validated through numerical simulations that describe the meso fatigue damage accumulation and the fatigue life for off-axis unidirectional fiber-reinforced plastic composite laminates of arbitrary fiber orientation under different stress ratios. It is shown that the fatigue damage behavior and fatigue life for off-axis unidirectional glass/epoxy and carbon/epoxy composite laminates are adequately described by the proposed fatigue model over the range of different stress ratios.

Original language	English
Pages (from-to)	212-220
Number of pages	9
Journal	Materials and Design
Volume	107
Early online date	11 Jun 2016
DOIs	https://doi.org/10.1016/j.matdes.2016.06.040
Publication status	Published - 5 Oct 2016

Research Groups and Themes

Bristol BioDesign Institute

Keywords

synthetic biology
meso-model
stress ratio
fatigue damage
fiber-reinforced composite
continuum damage mechanics

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10.1016/j.matdes.2016.06.040

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This is the author accepted manuscript (AAM). The final published version (version of record) is available online via Elsevier at http://www.sciencedirect.com/science/article/pii/S0264127516307924. Please refer to any applicable terms of use of the publisher.
Accepted author manuscript, 1.34 MBLicence: CC BY-NC-ND

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title = "A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect",

abstract = "This work presents a fatigue damage meso-model for fiber-reinforced plastic composites, in which the effect of stress ratios on the off-axis fatigue behavior is taken into account. The non-dimensional effective stress concept is introduced in the continuum damage mechanics method. Damage growths and fatigue failure are studied along axial, transverse and shear directions at meso-scale level. The proposed model is validated through numerical simulations that describe the meso fatigue damage accumulation and the fatigue life for off-axis unidirectional fiber-reinforced plastic composite laminates of arbitrary fiber orientation under different stress ratios. It is shown that the fatigue damage behavior and fatigue life for off-axis unidirectional glass/epoxy and carbon/epoxy composite laminates are adequately described by the proposed fatigue model over the range of different stress ratios.",

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author = "Wenjiao Zhang and Zhengong Zhou and Fabrizio Scarpa and Shuyuan Zhao",

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journal = "Materials and Design",

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T1 - A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect

AU - Zhang, Wenjiao

AU - Zhou, Zhengong

AU - Scarpa, Fabrizio

AU - Zhao, Shuyuan

PY - 2016/10/5

Y1 - 2016/10/5

N2 - This work presents a fatigue damage meso-model for fiber-reinforced plastic composites, in which the effect of stress ratios on the off-axis fatigue behavior is taken into account. The non-dimensional effective stress concept is introduced in the continuum damage mechanics method. Damage growths and fatigue failure are studied along axial, transverse and shear directions at meso-scale level. The proposed model is validated through numerical simulations that describe the meso fatigue damage accumulation and the fatigue life for off-axis unidirectional fiber-reinforced plastic composite laminates of arbitrary fiber orientation under different stress ratios. It is shown that the fatigue damage behavior and fatigue life for off-axis unidirectional glass/epoxy and carbon/epoxy composite laminates are adequately described by the proposed fatigue model over the range of different stress ratios.

AB - This work presents a fatigue damage meso-model for fiber-reinforced plastic composites, in which the effect of stress ratios on the off-axis fatigue behavior is taken into account. The non-dimensional effective stress concept is introduced in the continuum damage mechanics method. Damage growths and fatigue failure are studied along axial, transverse and shear directions at meso-scale level. The proposed model is validated through numerical simulations that describe the meso fatigue damage accumulation and the fatigue life for off-axis unidirectional fiber-reinforced plastic composite laminates of arbitrary fiber orientation under different stress ratios. It is shown that the fatigue damage behavior and fatigue life for off-axis unidirectional glass/epoxy and carbon/epoxy composite laminates are adequately described by the proposed fatigue model over the range of different stress ratios.

KW - synthetic biology

KW - meso-model

KW - stress ratio

KW - fatigue damage

KW - fiber-reinforced composite

KW - continuum damage mechanics

UR - https://www.scopus.com/pages/publications/84974839276

U2 - 10.1016/j.matdes.2016.06.040

DO - 10.1016/j.matdes.2016.06.040

M3 - Article (Academic Journal)

AN - SCOPUS:84974839276

SN - 0261-3069

VL - 107

SP - 212

EP - 220

JO - Materials and Design

JF - Materials and Design

ER -

A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect

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