• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Fakultet for ingeniørvitenskap (IV)
  • Institutt for bygg- og miljøteknikk
  • View Item
  •   Home
  • Fakultet for ingeniørvitenskap (IV)
  • Institutt for bygg- og miljøteknikk
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Behavior of Aluminum at Elevated Strain Rates and Temperatures

Semb, Eivind
Master thesis
Thumbnail
View/Open
649785_FULLTEXT01.pdf (20.20Mb)
649785_COVER01.pdf (184.0Kb)
URI
http://hdl.handle.net/11250/232608
Date
2013
Metadata
Show full item record
Collections
  • Institutt for bygg- og miljøteknikk [2875]
Abstract
This thesis explores the thermomechanical behavior of aluminum. Experimental work has been conducted for a wide range of temperatures and strain rates for three AA6060 alloys in both quasi-static and split-Hopkinson tension bar test rigs. An induction heater system, pyrometer and high-speed camera was used to obtain elevated temperatures and information about the geometry in the necked section of the specimen. Some tests show slightly different material behavior between the alloys studied with respect to yield stress and strain hardening. However, no coherent difference can be established as the deviations are not seen from all tests, and are probably not significant. Three material models have been fitted with an available database containing material data for a similar alloy for a wide range of strain rates and temperatures. No adequate fit is obtained for the investigated models using the procedure described, but some significant differences between the models are seen. Numerical simulations of the split-Hopkinson tension bar experiments have been performed, but no good prediction for the material behavior until fracture was found. The reason for this is believed to be the material model parameters implemented. Numerical simulations with damage coupling have also been performed and show that fracture is predicted earlier.
Publisher
Institutt for konstruksjonsteknikk

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit