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Meso-scale Numerical Study of Composite Patch Repaired Hole Drilled Steel Plate

Lookup NU author(s): Dr Do Kyun Kim

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Abstract

A large number of steel structures, such as bridges, offshore platforms, large mining equipment and buildings, need retrofitting [1]. The use of composite materials patching is a very attractive alternative to the traditional reinforcement or repair methods (i.e. bolted doubler plates, welding), overcoming many of their limitations and disadvantages [2]. In this paper numerical models of hole drilled steel plate without repair and composite patch repaired hole drilled steel plate were developed, analyzed and compared using ANSYS software. The hole acts as damage, such as severe localized corrosion, in the steel plate, resulting in the development of high stress concentrations. Stress and strain results of the damaged steel plate indicated that three-ply composite patch reduced the maximum equivalent (von-Mises) stress and maximum equivalent elastic strain of the damaged plate by approximately 17.7% and 19.5%, respectively. Analyzing strains, stresses and failure criteria of the composite laminate requires to model the single layers a composite design is built up by. This method is called meso-scale approach. It requires material properties and thicknesses for each layer of the design. Plywise stress and strain results of the composite patch repair revealed that maximum stress and strain took place in the center of the first ply.


Publication metadata

Author(s): Setvati MR, Mustaffa Z, Isnadi B, Shafiq N, Syed ZI, Kim DK

Publication type: Article

Publication status: Published

Journal: ARPN Journal of Engineering and Applied Sciences

Year: 2016

Volume: 11

Issue: 3

Pages: 1724-1728

Print publication date: 01/02/2016

Online publication date: 01/02/2016

Acceptance date: 01/02/2016

ISSN (print): 1819-6608

Publisher: Asian Research Publishing Network (ARPN)

URL: http://www.arpnjournals.org/jeas/research_papers/rp_2016/jeas_0216_3557.pdf


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