Compression fatigue failure of CFRP laminates with impact damage

Nobuhide Uda; Kousei Ono; Kazuo Kunoo

doi:10.1016/j.compscitech.2008.11.031

Compression fatigue failure of CFRP laminates with impact damage

Nobuhide Uda, Kousei Ono, Kazuo Kunoo

Aerospace Structures and Structural Dynamics Laboratory

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

55 Citations (Scopus)

Abstract

The objective of this study is to investigate failure mechanisms of impact-damaged CFRP laminates subjected to compression fatigue. Two kinds of composite materials, UT500/Epoxy and AS4/PEEK, were used to examine the dependence of failure behavior on the material properties such as interlaminar toughness. Impact-induced delaminations in the UT500/Epoxy specimen were considerably larger than those in the AS4/PEEK specimen. The S-N curves for the UT500/Epoxy specimens with impact damage exhibited a similar tendency to those without impact. The impact-induced delamination in the UT500/Epoxy specimen grew widthwise to the free edge on the rear side of the specimen during the fatigue test. On the other hand, the AS4/PEEK specimens without impact exhibited a more steeply declining S-N curve than those with impact damage. The delaminations in the impacted AS4/PEEK specimen did not reach the free edge before the fatigue fracture.

Original language	English
Pages (from-to)	2308-2314
Number of pages	7
Journal	Composites Science and Technology
Volume	69
Issue number	14
DOIs	https://doi.org/10.1016/j.compscitech.2008.11.031
Publication status	Published - Nov 1 2009

All Science Journal Classification (ASJC) codes

Engineering(all)
Ceramics and Composites

Access to Document

10.1016/j.compscitech.2008.11.031

Cite this

@article{89f70846bc9d47a48d7b3c4e1ae9efd4,

title = "Compression fatigue failure of CFRP laminates with impact damage",

abstract = "The objective of this study is to investigate failure mechanisms of impact-damaged CFRP laminates subjected to compression fatigue. Two kinds of composite materials, UT500/Epoxy and AS4/PEEK, were used to examine the dependence of failure behavior on the material properties such as interlaminar toughness. Impact-induced delaminations in the UT500/Epoxy specimen were considerably larger than those in the AS4/PEEK specimen. The S-N curves for the UT500/Epoxy specimens with impact damage exhibited a similar tendency to those without impact. The impact-induced delamination in the UT500/Epoxy specimen grew widthwise to the free edge on the rear side of the specimen during the fatigue test. On the other hand, the AS4/PEEK specimens without impact exhibited a more steeply declining S-N curve than those with impact damage. The delaminations in the impacted AS4/PEEK specimen did not reach the free edge before the fatigue fracture.",

author = "Nobuhide Uda and Kousei Ono and Kazuo Kunoo",

year = "2009",

month = nov,

day = "1",

doi = "10.1016/j.compscitech.2008.11.031",

language = "English",

volume = "69",

pages = "2308--2314",

journal = "Composites Science and Technology",

issn = "0266-3538",

publisher = "Elsevier BV",

number = "14",

}

TY - JOUR

T1 - Compression fatigue failure of CFRP laminates with impact damage

AU - Uda, Nobuhide

AU - Ono, Kousei

AU - Kunoo, Kazuo

PY - 2009/11/1

Y1 - 2009/11/1

N2 - The objective of this study is to investigate failure mechanisms of impact-damaged CFRP laminates subjected to compression fatigue. Two kinds of composite materials, UT500/Epoxy and AS4/PEEK, were used to examine the dependence of failure behavior on the material properties such as interlaminar toughness. Impact-induced delaminations in the UT500/Epoxy specimen were considerably larger than those in the AS4/PEEK specimen. The S-N curves for the UT500/Epoxy specimens with impact damage exhibited a similar tendency to those without impact. The impact-induced delamination in the UT500/Epoxy specimen grew widthwise to the free edge on the rear side of the specimen during the fatigue test. On the other hand, the AS4/PEEK specimens without impact exhibited a more steeply declining S-N curve than those with impact damage. The delaminations in the impacted AS4/PEEK specimen did not reach the free edge before the fatigue fracture.

AB - The objective of this study is to investigate failure mechanisms of impact-damaged CFRP laminates subjected to compression fatigue. Two kinds of composite materials, UT500/Epoxy and AS4/PEEK, were used to examine the dependence of failure behavior on the material properties such as interlaminar toughness. Impact-induced delaminations in the UT500/Epoxy specimen were considerably larger than those in the AS4/PEEK specimen. The S-N curves for the UT500/Epoxy specimens with impact damage exhibited a similar tendency to those without impact. The impact-induced delamination in the UT500/Epoxy specimen grew widthwise to the free edge on the rear side of the specimen during the fatigue test. On the other hand, the AS4/PEEK specimens without impact exhibited a more steeply declining S-N curve than those with impact damage. The delaminations in the impacted AS4/PEEK specimen did not reach the free edge before the fatigue fracture.

UR - http://www.scopus.com/inward/record.url?scp=70349432696&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70349432696&partnerID=8YFLogxK

U2 - 10.1016/j.compscitech.2008.11.031

DO - 10.1016/j.compscitech.2008.11.031

M3 - Article

AN - SCOPUS:70349432696

VL - 69

SP - 2308

EP - 2314

JO - Composites Science and Technology

JF - Composites Science and Technology

SN - 0266-3538

IS - 14

ER -

Compression fatigue failure of CFRP laminates with impact damage

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this