ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 7

A Method for Estimation of the Radius of Elastic-Plastic Boundary Around Cold-Worked Holes

Arora, PR
Principal research scientist and project assistant, Indian Institute of Science, Bangalore,

Dattaguru, B
Professor, Indian Institute of Science, Bangalore,

Subramánya Hande, HS
Principal research scientist and project assistant, Indian Institute of Science, Bangalore,

(Received 6 June 1991; accepted 5 March 1992)

Abstract

The radius of an elastic-plastic boundary was measured by the strain gage method around the cold-worked region in L72-aluminum alloy. The relative radial expansion was varied from 2.5 to 6.5% during the cold-working process using mandrel and split sleeve. The existing theoretical studies in this area are reviewed. The experimental results are compared with existing experimental data of various investigators and with various theoretical formulations. A model is developed to predict the radius of elastic-plastic boundary, and the model is assessed by comparing with the present experiments.

Keywords:
elastic-plastic boundary, sleeve, mandrel, cold work

Paper ID: JTE11923J
DOI: 10.1520/JTE11923J
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