Formula for SIF of cracked steel plates strengthened with CFRP plate

Q. Q. Yu, X. L. Zhao, T. Chen, Z. G. Xiao, X. L. Gu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Fatigue loading will lead to crack initiation and crack growth in steel structures where stress concentration exists. Fatigue life of aged steel members can be extended significantly with carbon fiber reinforced polymer (CFRP) repair. Stress intensity factor (SIF) is a key parameter to calculate the fatigue life and analyze the progress of crack development. There is a lack of knowledge of SIF for cracked steel plate with different degrees of damage strengthened with CFRP. This paper aims to fill this knowledge gap. The SIF formula is developed based on the classical SIF solution and James-Anderson method by considering two correction factors, representing the effect of load share effect in composite system and the effect of initial damage degree, respectively. It is demonstrated that the SIF formula proposed in the paper is applicable to SIF estimation of strengthened center cracked steel plate with different degrees of damage.

Original languageEnglish
Title of host publicationFrom Materials to Structures
Subtitle of host publicationAdvancement Through Innovation - Proceedings of the 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012
Pages537-540
Number of pages4
Publication statusPublished - 2013
Externally publishedYes
Event22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012 - Sydney, NSW, Australia
Duration: 11 Dec 201214 Dec 2012

Publication series

NameFrom Materials to Structures: Advancement Through Innovation - Proceedings of the 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012

Conference

Conference22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012
Country/TerritoryAustralia
CitySydney, NSW
Period11/12/1214/12/12

Keywords

  • Carbon fibre reinforced polymer (CFRP)
  • Fatigue damage
  • Steel plate
  • Stress intensity factor

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials

Fingerprint

Dive into the research topics of 'Formula for SIF of cracked steel plates strengthened with CFRP plate'. Together they form a unique fingerprint.

Cite this