A multi-level low cycle fatigue damage model for a forging die material

S. Gao, E. Werner

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The forging die material, a high strength steel designated W513 is considered in this paper. A fatigue damage model, based on thermodynamics and continuum damage mechanics, is constructed in which both the previous damage and the loading sequence are considered. The unknown material parameters in the model are identified from low cycle fatigue tests. Damage evolution under multi-level fatigue loading is investigated. The results show that the fatigue life is closely related to the loading sequence. The fatigue life of the materials with low fatigue loading first followed by high fatigue loading is longer than that for the reversed loading sequence.

Original languageEnglish
Title of host publicationAdvanced Materials Forum III - Proceedings of the 3rd International Materials Symposium 2005 and 12th Encontro da Sociedade Portuguesa de Materiais - SPM
PublisherTrans Tech Publications Ltd
Pages804-809
Number of pages6
EditionPART 1
ISBN (Print)9780878494026
DOIs
StatePublished - 2006
Event3rd International Materials Symposium and 12th Portuguese Materials Society Meeting 2005 - Aveiro, Portugal
Duration: 20 Mar 200523 Mar 2005

Publication series

NameMaterials Science Forum
NumberPART 1
Volume514-516
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference3rd International Materials Symposium and 12th Portuguese Materials Society Meeting 2005
Country/TerritoryPortugal
CityAveiro
Period20/03/0523/03/05

Keywords

  • Damage evolution
  • Die material
  • Fatigue life
  • Low cycle fatigue

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