Author
Aiello, Christopher Jared
Other Contributors
Maniatty, Antoinette M.; Picu, Catalin R.; Shephard, M. S. (Mark S.); Lewis, Daniel J.; Macri, Michael F. II;
Date Issued
2016-05
Subject
Mechanical engineering
Degree
PhD;
Terms of Use
This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.;
Abstract
In this work the swage autofrettage process is examined with respect to the influence of design variables on the residual stress field remaining in a cylindrical pressure vessel after processing. A material model is derived that captures the behavior of high strength steel ASTM A723 during fully reversed plastic strain cycles, including the Bauschinger effect and changes in the elastic stiffness. An algorithm for implementing this material model in a finite element code is provided and the performance is demonstrated through simulation of the swage process with results compared to experimental strain data obtained during the swage process. A parametric study is performed that examines the influence of wall ratio and bore interference on the residual stress field.;
Description
May 2016; School of Engineering
Department
Dept. of Mechanical, Aerospace, and Nuclear Engineering;
Publisher
Rensselaer Polytechnic Institute, Troy, NY
Relationships
Rensselaer Theses and Dissertations Online Collection;
Access
Restricted to current Rensselaer faculty, staff and students. Access inquiries may be directed to the Rensselaer Libraries.;
