Fracture assessment of strengthened cracked metallic components using FRP stiffeners

W. K. Ahmed; A. H.I. Mourad

doi:10.1007/s11029-015-9501-z

Fracture assessment of strengthened cracked metallic components using FRP stiffeners

W. K. Ahmed, A. H.I. Mourad

Department of Mechanical and Aerospace Engineering

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

10 Citations (Scopus)

Abstract

The present study focuses on applying the fracture mechanics approach to the fracture assessment of a cracked member/component strengthened with fiber-reinforced polymer composite stiffeners. The parameters of linear elastic fracture mechanics (LEFM) — the stress intensity factor and the crack opening displacement — are estimated using a finite-element analysis. A metallic plate with an edge crack repaired with fiber-reinforced polymer composite stiffeners is considered in the study. The effects of crack length, debonding length, and adhesive stiffness on the LEFM parameters are examined. Two different loading conditions are considered — axial t .

Original language	English
Article number	A004
Pages (from-to)	301-312
Number of pages	12
Journal	Mechanics of Composite Materials
Volume	51
Issue number	3
DOIs	https://doi.org/10.1007/s11029-015-9501-z
Publication status	Published - Jul 1 2015

Keywords

Crack opening displacement
Fiber-reinforced polymer
Repair
Stiffener
Stress intensity factor

ASJC Scopus subject areas

Ceramics and Composites
Biomaterials
Mathematics(all)
Condensed Matter Physics
Mechanics of Materials
Polymers and Plastics

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10.1007/s11029-015-9501-z

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AB - The present study focuses on applying the fracture mechanics approach to the fracture assessment of a cracked member/component strengthened with fiber-reinforced polymer composite stiffeners. The parameters of linear elastic fracture mechanics (LEFM) — the stress intensity factor and the crack opening displacement — are estimated using a finite-element analysis. A metallic plate with an edge crack repaired with fiber-reinforced polymer composite stiffeners is considered in the study. The effects of crack length, debonding length, and adhesive stiffness on the LEFM parameters are examined. Two different loading conditions are considered — axial t .

KW - Crack opening displacement

KW - Fiber-reinforced polymer

KW - Repair

KW - Stiffener

KW - Stress intensity factor

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Fracture assessment of strengthened cracked metallic components using FRP stiffeners

Abstract

Keywords

ASJC Scopus subject areas

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