RESEARCH PAPER
Ratcheting Simulation in a Titanium-Steel Bimetallic Plate Based on the Chaboche Hardening Model
1
Faculty of Mechanical Engineering, Opole University of Technology, ul. Mikołajczyka 5, 45-271 Opole, Poland
Submission date: 2015-05-04
Acceptance date: 2016-11-25
Online publication date: 2016-12-28
Publication date: 2016-12-01
Acta Mechanica et Automatica 2016;10(4):265-270
KEYWORDS
ABSTRACT
The paper presents the results of fatigue loading simulation applied to bimetallic model using the Chaboche kinematic hardening rule. Three cases of simulations were performed: (i) without residual stresses; (ii) considering residual stresses and (iii) considering asymmetrical geometry of bimetal, i.e. cross area reducing under tension period of loading. Experimental results exhibit the ratcheting phenomenon in titanium-steel bimetallic specimens. The observed ratcheting phenomenon could be explained by the third case of simulation which is supported by detection of microcracks in the vicinity of welded area.
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| ISSN: | 1898-4088 |
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