Fatigue crack growth study of CFRP patch repaired Al 2014-T6 panel having an inclined center crack using FEA and DIC

Srilakshmi, R and M, Ramji and Chinthapenta, Viswanath (2015) Fatigue crack growth study of CFRP patch repaired Al 2014-T6 panel having an inclined center crack using FEA and DIC. Engineering Fracture Mechanics, 134. pp. 182-201. ISSN 0013-7944

Full text not available from this repository. (Request a copy)

Abstract

In this work, the fatigue life of unrepaired and repaired Al-2014-T6 panels with an inclined center crack is investigated. Cracked panels are repaired through single-and double-sided adhesively bonded carbon fiber reinforced polymer (CFRP) patch. The fatigue crack growth is monitored experimentally using digital image correlation and numerically using 3D finite element analysis. The adhesive-interface between the panel and patch is modeled using bilinear cohesive law. The CFRP/Al-2014-T6 adhesive-interface properties are obtained from the baseline tests. Fatigue life of double-sided repaired panel is observed to be twice that of single-sided. And non-uniform crack front is observed in single-sided repaired panels.

[error in script]

IITH Creators:

IITH Creators	ORCiD
M, Ramji	UNSPECIFIED
Chinthapenta, Viswanath	UNSPECIFIED

Item Type:

Article

Additional Information:

The authors are also thankful to Mr. N. Jagannathan Scientist-C, CSIR-NAL, Bangalore for valuable suggestions in conducting fatigue crack growth experiments of Al 2014-T6 alloy and to the IITH central workshop for fabricating the specimens.

Uncontrolled Keywords:

Aluminium alloys; Cohesive zone modeling; Digital image correlation; Fatigue crack growth; Bonded joints

Subjects:

Materials Engineering > Materials engineering

Divisions:

Department of Physics

Depositing User:

Team Library

Date Deposited:

27 May 2015 08:59

Last Modified:

01 Sep 2017 06:43