Authors: | Gafri, O. Izhar, A. Livshitz, Y. Shribman, V. |
Title: | Magnetic Pulse Acceleration |
Language (ISO): | en |
Abstract: | The present work is dedicated to describing works in the spheres of simulation, calculation, and experimental results of acceleration by pulsed electromagnetic forces where strain rates of 10,000 - 50,000 s^(-1) are common. The goal is to design a multidisciplinary model that will overcome the shortcomings of normal simulation methods that solve the EM field and then apply the solution in a mechanical analysis. Improved numeric models for virtual simulation of magnetic pulse processes are detailed, along with the pulse-power equipment and a special measurement system developed to verify these models and to determine material property data. These measure both radial velocity and axial speed (collision-point progression) for tube forming and / or welding processes, while logging the pulse current and magnetic field. The results show good a correlation between test and multiphysics model and provide valuable new insights, as well as an extraction of critical parameters by way of a comparison between calculated and measured data for materials such as aluminum alloys, copper, and steel. |
Subject Headings: | electromagnetic forming high speed testing methods process modeling verification |
URI: | http://hdl.handle.net/2003/27075 http://dx.doi.org/10.17877/DE290R-12942 |
Issue Date: | 2006 |
Provenance: | Institut für Umformtechnik - Technische Universität Dortmund |
Is part of: | 2nd international conference on high speed forming, March 20th - 21st, 2006, Dortmund, Germany |
Appears in Collections: | ICHSF 2006 |
Files in This Item:
File | Description | Size | Format | |
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4- gafri_etal.pdf | DNB | 1.18 MB | Adobe PDF | View/Open |
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