Use of interferometric techniques for measuring the displacement field in the plane of a part-through crack existing in a plate

An experimental procedure based on holographic interferometry coupled with computer-aided image processing techniques was used to estimate the stress intensity factor (SIF) of a part-through crack in a plate. The loading consisted of a uniform remote tensile stress, leading to an opening and edge ro...

Full description

Saved in:
Bibliographic Details
Published in:The International journal of pressure vessels and piping 2001-04, Vol.78 (4), p.253-259
Main Authors: Monteiro, Jaime M, Vaz, Mário A.P, Melo, Franciso Q, Silva Gomes, J.F
Format: Article
Language:English
Subjects:
Applied sciences
Continuous cycle engines: steam and gas turbines, jet engines
Crack propagation
Electronic speckle pattern interferometry
Engines and turbines
Exact sciences and technology
Holographic interferometry
Image processing
Line-spring model
Mechanical engineering. Machine design
Part-through crack
Plates (structural components)
Stress intensity factor
Stress intensity factors
Tensile stress
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An experimental procedure based on holographic interferometry coupled with computer-aided image processing techniques was used to estimate the stress intensity factor (SIF) of a part-through crack in a plate. The loading consisted of a uniform remote tensile stress, leading to an opening and edge rotation displacement field along the crack plane. The evaluation of the crack opening displacements and edge rotations, carried out after the numerical interpretation of the fringe pattern, made possible an estimation of the SIF along the crack line, following the theoretical basis of the Line-Spring Model developed by Rice and Levy.
ISSN:0308-0161
1879-3541
DOI:10.1016/S0308-0161(01)00004-7