Dynamic constitutive model for TiC-particulate reinforced titanium matrix composites

Qin Gyu Yu, Jing Wang, Yuan Chao Gan, Wei Dong Song*, Xiao Nan Mao

*Corresponding author for this work

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

Abstract

A coupled model of damage and plasticity is presented to describe the dynamic behaviors of TiC-particulate reinforced titanium matrix composites (TiCp/TMCs) subjected to shock loadings. The TiCp/TMCs are assumed as homogeneous continuum with pre-existing micro-cracks and micro-voids. Damage to TiCp/TMCs is caused due to micro-crack nucleation, growth and coalescence, and defined as the probability of fracture at a given crack density. In terms of crack growth model, micro-cracks are activated, and begin to propagate gradually. When crack density reaches a critical value, the smashing destroy takes place. The model parameters for TiCp/TMCs are determined using plate impact experiments. Comparison with the test results shows that the proposed model can give consistent predictions of the dynamic behaviors of TiCp/TMCs subjected to impact loadings.

Original languageEnglish
Title of host publicationApplied Materials and Technologies
EditorsXiaopeng Xiong, Ran Zhang
PublisherTrans Tech Publications Ltd.
Pages141-144
Number of pages4
ISBN (Print)9783038355960
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event9th International Forum on Advanced Material Science and Technology, IFAMST9 2014 - Xiamen, China
Duration: 30 Nov 20143 Dec 2014

Publication series

NameMaterials Science Forum
Volume833
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference9th International Forum on Advanced Material Science and Technology, IFAMST9 2014
Country/TerritoryChina
CityXiamen
Period30/11/143/12/14

Keywords

  • Constitutive model
  • Damage evolution
  • Impact behavior
  • Plasticity
  • Titanium matrix composites

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