Probability of strength reduction of aged ship structural profiles due to corrosion wear Chowdhury, Mahiuddin en_US 2021-11-25T14:30:31Z 2021-11-25T14:30:31Z 2006 en_US
dc.description.abstract A relatively simple, straight-forward statistical method is presented here to assess the probability of reduction of geometrical properties of aged ship structural profiles. These rolled profiles such as bulb plate, tee bar, flat bar etc. begin to shrink mainly due to corrosion wear following the breakdown of protective coatings. Geometrical properties may include the stiffener cross-sectional area with or without the attached plating, moment of inertia, section modulus etc. among many others. The first set of inputs includes the statistical data about the dimensions or scantlings of the structural profiles usually collected by the manufacturers. For example, the mean and coefficient of variation (c.o.v.) of the web height, web plate thickness etc. The second set of inputs for this analysis is the evenly distributed corrosion wear; the mean wear and the c.o.v. or standard deviation of wear. Based on certain assumptions the mean and variance of the geometrical properties may be derived statistically from these basic inputs. The outputs may be used to address the following issue. The Classification Societies set up Renewal Criteria for the stiffeners/profiles in ship hull structures when they do not meet the requirements which may be, for example, cross-sectional area falling below 90% of the original nominal value. However, the means and variances of the geometrical properties as functions of age have many other useful applications. en_US
dc.description.uri en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.subject.other Probability en_US
dc.subject.other Strength of sections en_US
dc.subject.other Corrosion en_US
dc.title Probability of strength reduction of aged ship structural profiles due to corrosion wear en_US
dc.type Conference Paper en
dcterms.accessRights open access
dspace.entity.type Publication en_US
unsw.identifier.doi Sydney en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofconferenceLocation Sydney, Australia en_US
unsw.relation.ispartofconferenceName Pacific 2006 International Maritime Conference en_US
unsw.relation.ispartofconferenceProceedingsTitle Proceedings of the Pacific 2006 International Maritime Conference en_US
unsw.relation.ispartofconferenceYear 2006 en_US
unsw.relation.originalPublicationAffiliation Chowdhury, Mahiuddin, Mechanical & Manufacturing Engineering, Faculty of Engineering, UNSW en_US School of Mechanical and Manufacturing Engineering *
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