Coefficient of restitution and plastic strain for impact of elements welded with micro-jet cooling

The main purpose of investigations is the qualification how post-accident repair of model car body parts influence on the value of coefficient of restitution. Evaluation of impact energy absorption by model car body parts repaired with MIG welding (with and without micro-jet cooling) was carried out...

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Bibliographic Details
Main Authors: Damian HADRYŚ, Jan PIWNIK, Tomasz WĘGRZYN, Bogusław ŁAZARZ
Format: Article
Language:English
Published: Silesian University of Technology 2014-06-01
Series:Transport Problems
Subjects:
Online Access:http://transportproblems.polsl.pl/pl/Archiwum/2014/zeszyt2/2014t9z2_08.pdf
Description
Summary:The main purpose of investigations is the qualification how post-accident repair of model car body parts influence on the value of coefficient of restitution. Evaluation of impact energy absorption by model car body parts repaired with MIG welding (with and without micro-jet cooling) was carried out. The results of investigations present that the value of coefficient of restitution changes with speed of impact. Coefficient of restitution is bigger for elements welded with micro-jet cooling than for element welded with ordinary method. This could have influence on passive safety of vehicle.
ISSN:1896-0596
2300-861X