Study of steel weldments using electronic speckle pattern interferometry

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Journal of Testing and Evaluation; (United States)

OSTI ID:5354696

Sivaganthan, J ^[1]; Ganesan, A R; Tan, B C; Low, K S ^[2]; Sirohi, R S ^[3]

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1. Univ. of Malaya, Kuala Lumpur (Malaysia). Dept. of Physics
2. Univ. of Malaya, Kuala Lumpur (Malaysia). Inst. for Advanced Studies
3. Indian Inst. of Tech., Madras (India). Dept. of Physics

Both holography and speckle techniques have been used for nondestructive testing (NDT) and in the inspection of several materials. Electronic Speckle Pattern Interferometry (ESPI) is particularly interesting as the qualitative information can be obtained over the whole object when subjected to load almost in real time. Quantitative analysis of the information is also simpler to perform as the experimental configuration can be so designed that ESPI senses only one of the deformation components. Since shear ESPI is not sensitive to bodily deformation but only to the derivatives of deformation, it has been recommended to detect the debonds of delaminations in honeycomb and other laminated structures. The purpose of this article is to demonstrate that ESPI can be used to inspect weldments in steel. To the best of the knowledge this is the first application of ESPI for testing weldments in steel.

• OSTI ID: 5354696
• Journal Information: Journal of Testing and Evaluation; (United States), Journal Name: Journal of Testing and Evaluation; (United States) Vol. 22:1; ISSN JTEVAB; ISSN 0090-3973
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500* -- Engineering-- Materials Testing
ALLOYS
DEFECTS
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
PLATES
STEELS
TESTING
WELDED JOINTS