Fracture To Failure A Fracture Mechanics Approach For Bridge Failure Analysis

Susilorini, Retno (2008) Fracture To Failure A Fracture Mechanics Approach For Bridge Failure Analysis. In: I N T E R N A T I O N A L S E M I N A R Civil Engineering XI 2008. UPN Veteran, Suarabaya.

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Abstract

The development of infrastructure, includes the bridge, takes important role in improving the progress of sustainable development. Hence, all the parts of infrastructure should be placed and constructed safely and sustainable. However, the failure of structures has been coloring the world of infrastructure development for many decades. Some cases told that the failure of structure extremely caused by crack and fracture that bring the structure failure and even collapse. Fulfilling the need of safe and sustainable structure, the fracture mechanics gives solution to answer the demand of safe structure, especially bridge structure, by considering fracture phenomenon at all structural elements. This paper will take a review on fracture problem which causes failure, in context of bridge analysis failure that is approached by fracture mechanics. The two cases which become reviewed in this paper are the picture of structural failure analysis in macro and micro scale. The collapse of Schoharie Creek Bridge describes the failure of structure in macro scale and the pull-out specimen’s failure modeling will give enrichment of understanding of failure analysis in micro scale. This paper meets some conclusions: (a) The fracture mechanics gives solution to answer the demand of safe structure by considering fracture phenomenon at all structural elements. The fracture mechanics becomes a significant tool to get a safe and sustainable structure, especially bridge structures; (b) The finite element modeling by Swenson and Ingraffea has successfully simulated the initial of crack emerging, the crack propagation, and also the fracture phenomenon during the collapse of the bridge. Swenson and Ingraffea (1991) recommended the fracture mechanics to analyze the failure of the structure and to design the structure that is safe and effective, and (c) Susilorini has noted that pull-out specimen’s failure modeling may describe failure analysis in micro scale clearly. Some theories have established by Susilorini: (a) Fracture criterion of fiber cementitious composites determined by critical J-Integral; (b) Critical J-Integral take a role as significant complementary energy; (c) Finite element model delivers appropriate fracture criterion, that is critical J-Integral; (d) Some new equation improvement retrieved from Marshall and Cox; and (5) Crack arrester will exist in every final of slip stage, hence the critical J-Integral is going to be emerged in strain-hardening stage.

Item Type: Book Section
Subjects: > 620 Engineering > 624 Civil engineering > Applied Engineering > Bridge
Divisions: Faculty of Engineering > Department of Civil Engineering
Depositing User: Mrs Rikarda Ratih
Date Deposited: 30 Aug 2018 04:00
Last Modified: 03 Dec 2019 08:08
URI: http://repository.unika.ac.id/id/eprint/16884

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