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RESEARCH PAPERS: Production Engineering Papers

An Investigation of the Shell Nosing Process by the Finite-Element Method. Part 1: Nosing at Room Temperature (Cold Nosing)

[+] Author and Article Information
Ming-Ching Tang

IBM Corporation, General Product Division, San Jose, Calif.

Shiro Kobayashi

Department of Mechanical Engineering, University of California, Berkeley, Calif.

J. Eng. Ind 104(3), 305-311 (Aug 01, 1982) (7 pages) doi:10.1115/1.3185834 History: Received February 08, 1982; Online July 30, 2009

Abstract

The metal-forming process of shell nosing at room temperature was analyzed by the finite-element method. The strain-rate effects on materials properties were included in the analysis. In cold nosing simulations, the nine-node quadrilateral elements with quadratic velocity distribution were used for the workpiece. The treatment of a moving boundary in the analysis of nosing is discussed and successfully implemented in the finite-element program. FEM simulations of 105-mm dia. shells of AISI 1018 steel and aluminum 2024 were performed and solutions were obtained in terms of load-displacement curves, thickness distribution, elongation, and strain distributions. Comparisons with experimental data show very good agreement.

Copyright © 1982 by ASME
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