Fracture mechanics approach to assess the progressive structural failure of a damaged ship

Published on May 28, 2013
路 DOI :10.1201/B14915-10
Alexander Bardetsky2
Estimated H-index: 2
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2 Authors (B Farahmand, F Hajjar)
4 Authors (R.A. de Groot, ..., Y. M. De Haan)
#1Tao Xu (University of California, Berkeley)H-Index: 3
#2Robert G. Bea (University of California, Berkeley)H-Index: 16
This paper presents a phenomenological theory to characterize load shedding during fatigue fracture in ship structure. Following an outline of linear fracture mechanics based fatigue analysis, the paper discusses load shedding mechanisms (load redistribution during crack propagation) in ship structural details. A phenomenological (semi-empirical) approach is then developed to characterize sources of load shedding. The phenomenological approach is used to calibrate a load shedding model for fract...
#1Y.W. Cheng (NIST: National Institute of Standards and Technology)H-Index: 2
Abstract This paper describes procedures for predicting the growth rate of fatigue cracks under sea-wave loading. The procedures start with an anticipated (or assumed) stress spectrum acting on a component of interest. Fatigue crack growth rates (FCGRs) are calculated using the fracture mechanics approach and an equivalent-stress-range concept. Experimental results have shown that use of the calculated equivalent-stress range heq, of the anticipated (or assumed) stress spectrum, coupled with con...
Cited By1
#1Ivana Gledi膰 (University of Zagreb)H-Index: 3
#2Jo拧ko Parunov (University of Zagreb)H-Index: 15
Last. Maro 膯orak (University of Zagreb)H-Index: 6
view all 4 authors...
Abstract This work aims to extend the conventional post-accidental structural safety assessment by investigating the possibility of damage propagation in a damaged ship during the salvage period as a low-cycle high-stress fatigue process caused by fluctuating wave loads. Low-cycle loading can cause high-amplitude stresses at the edge of the damage opening, which consequently lead to high-stress concentrations. In the present study, a finite element model is created for an intact ship and 50 rand...
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