ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Recently, physical simulation has played a more and more important role in modeling hotforming process. However, difficulty still existed in simulating real hot forming process usingphysical simulation results directly for obvious difference in deformation history between physicalsimulation condition and real hot forming process. In this work, difference between physicalsimulation and real hot forming process was discussed and a mathmatical approach was proposed tomodel real hot forming process using physical simulation results. The main consideration of themethod was to put physical simulation results into differential forms in order to take count in thecontribution of deformation history (temperature and strain rate) at each incremental step. For theapplication of the approach, modeling of material flow stress, dynamical recrystallization includingcritical condition and recrystallziaton fraction, damage evolution and fracture criteria during real hotforming process were presented as examples, although experimental support was still needed forvalidation and further application
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.575-578.502.pdf
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