Journal Published Online: 10 August 2010
Volume 39, Issue 1

Use of Miniature Specimen Test and Finite Element Method for Evaluation of Yield Strength and Fracture Toughness in Metallic Alloys

CODEN: JTEVAB

Abstract

The present paper describes the method for evaluation of yield strength and fracture toughness of three materials, namely, linepipe steel, aluminum (Al) alloy, and gray cast iron using miniature specimen test. Conventional standard test methods consume more material and money and may damage the integrity of the in-service component. Miniature specimen tests overcome all these demerits. A method is outlined to predict the yield strength and fracture toughness from the miniature test through the empirical relations. The validation of results has been carried out by conducting standard tensile and fracture toughness tests according to ASTM standards. Further, the finite element method has been used to simulate the miniature test. A close agreement is observed between the results of the miniature test and standard tests.

Author Information

Reddy, K.
Centre for ITMMEC, Indian Institute of Technology Delhi, New Delhi, Hauz Khas, India
Partheepan, G.
Faculty of Engineering and Applied Science, Memorial Univ. of Newfoundland, St John’s, NL, Canada
Pandey, R.
Dept. of Applied Mechanics, Indian Institute of Technology Delhi, New Delhi, Hauz Khas, India
Sehgal, D.
Dept. of Applied Mechanics, Indian Institute of Technology Delhi, New Delhi, Hauz Khas, India
Pages: 8
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Details
Stock #: JTE102933
ISSN: 0090-3973
DOI: 10.1520/JTE102933