Author

Abhinav Talla

Publication Date

2015

Document Type

Dissertation/Thesis

First Advisor

Gau, Jenn-Terng

Degree Name

M.S. (Master of Science)

Department

Department of Mechanical Engineering

LCSH

Mechanical engineering||Materials science||Bauschinger effect||Aluminum alloys||Plasticity||Strains and stresses--Mathematical models

Abstract

For stamping process, most of the sheet metal elements undergo a complicated deformation process that may comprise a sequence of stretching, bending, unbending and reverse bending processes. For this kind of deformation, the Bauschinger effect must be considered in order to calculate the internal stress within the parts before springback. To understand the Bauschinger effect phenomenon on AA5182-O temper, a fixture for cyclic double-shear test has been designed and manufactured. This test can induce cyclic shear loading on the specimen during experiment. LS-Dyna has also been used to simulate this experiment.

Comments

Advisors: Jenn-Terng Gau.||Committee members: Abhijit Gupta; Meung Jung Kim.

Extent

89 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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