Effect of patch-parent stacking sequence and patch stiffness on the tensile behaviour of the patch repaired carbon-glass hybrid composite

Chinmaya Kumar Sahoo; Gursahib Singh Bhatia; A. Arockiarajan

doi:10.1016/j.tws.2022.109551

Effect of patch-parent stacking sequence and patch stiffness on the tensile behaviour of the patch repaired carbon-glass hybrid composite

Chinmaya Kumar Sahoo, Gursahib Singh Bhatia, A. Arockiarajan

Indian Institute of Technology Madras

Research output: Contribution to journal › Article › peer-review

Abstract

In this work tensile behaviour of the patch repaired carbon-glass woven hybrid composites was investigated with patches of different stiffnesses and stacking sequences with the aid of digital image correlation and acoustic emission. Two parent hybrid laminates were repaired with eight patches constituting carbon and glass plies. The damage modes are studied to understand their effect on load recovery. The least stiff patch combination with parent laminate having exterior ply as the glass ply exhibited 24.6% higher load than the drilled specimen. The patches with glass ply facing the parent laminate showed better recovery for the same patch stiffness.

Original language	English
Article number	109551
Journal	Thin-Walled Structures
Volume	179
DOIs	https://doi.org/10.1016/j.tws.2022.109551
Publication status	Published - Oct 2022
Externally published	Yes

Keywords

Acoustic emission
Digital image correlation
Hybrid composite repair
Patch stiffness
Stacking sequence
Tensile test

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10.1016/j.tws.2022.109551

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title = "Effect of patch-parent stacking sequence and patch stiffness on the tensile behaviour of the patch repaired carbon-glass hybrid composite",

abstract = "In this work tensile behaviour of the patch repaired carbon-glass woven hybrid composites was investigated with patches of different stiffnesses and stacking sequences with the aid of digital image correlation and acoustic emission. Two parent hybrid laminates were repaired with eight patches constituting carbon and glass plies. The damage modes are studied to understand their effect on load recovery. The least stiff patch combination with parent laminate having exterior ply as the glass ply exhibited 24.6% higher load than the drilled specimen. The patches with glass ply facing the parent laminate showed better recovery for the same patch stiffness.",

keywords = "Acoustic emission, Digital image correlation, Hybrid composite repair, Patch stiffness, Stacking sequence, Tensile test",

author = "Sahoo, {Chinmaya Kumar} and Bhatia, {Gursahib Singh} and A. Arockiarajan",

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AU - Sahoo, Chinmaya Kumar

AU - Bhatia, Gursahib Singh

AU - Arockiarajan, A.

PY - 2022/10

Y1 - 2022/10

N2 - In this work tensile behaviour of the patch repaired carbon-glass woven hybrid composites was investigated with patches of different stiffnesses and stacking sequences with the aid of digital image correlation and acoustic emission. Two parent hybrid laminates were repaired with eight patches constituting carbon and glass plies. The damage modes are studied to understand their effect on load recovery. The least stiff patch combination with parent laminate having exterior ply as the glass ply exhibited 24.6% higher load than the drilled specimen. The patches with glass ply facing the parent laminate showed better recovery for the same patch stiffness.

AB - In this work tensile behaviour of the patch repaired carbon-glass woven hybrid composites was investigated with patches of different stiffnesses and stacking sequences with the aid of digital image correlation and acoustic emission. Two parent hybrid laminates were repaired with eight patches constituting carbon and glass plies. The damage modes are studied to understand their effect on load recovery. The least stiff patch combination with parent laminate having exterior ply as the glass ply exhibited 24.6% higher load than the drilled specimen. The patches with glass ply facing the parent laminate showed better recovery for the same patch stiffness.

KW - Acoustic emission

KW - Digital image correlation

KW - Hybrid composite repair

KW - Patch stiffness

KW - Stacking sequence

KW - Tensile test

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SN - 0263-8231

VL - 179

JO - Thin-Walled Structures

JF - Thin-Walled Structures

M1 - 109551

ER -

Effect of patch-parent stacking sequence and patch stiffness on the tensile behaviour of the patch repaired carbon-glass hybrid composite

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Keywords

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