Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
High Temperature Dynamic Tension Behavior of Titanium Tested with Two Different Methods
Year:2017
Research Areas
  • Engineering
Information
Abstract
n this work, the dynamic response of Ti6Al4V alloy at high temperature was studied using the SHPB test with two different heating systems. The first device uses direct electric current to heat the sample to the testing temperature in a fraction of a second, whereas the second device uses a furnace to heat the sample and therefore, short sections of the bars, in few minutes. Tension tests were carried out at strain rates up to 1500 s-1 and at temperatures ranging from room temperature up to 700 °C. The conventional strain gage measurements from the pressure bars were used to obtain the stress?strain curves and the Johnson-Cook material model was used to fit the results of the tests. High speed photography and digital image correlation were used to quantify the total strain during the test. The plasticity of the titanium alloy clearly increases as the temperature is increased. The maximum strains, obtained from the stress-strain curves, also increase when the temperature is increased from room temperature. DIC results, however, show clear differences in the maximum strain before failure with respect to the values obtained from strain gages measurements. The maximum strain in the gage section of the sample prior to failure increases steadily as the testing temperature is increased. At 60 °C, the strains within the gage section reach values almost 50% just before failure. At 300 °C, the maximum strains are close to 65%, and at 700 °C the maximum strains extend close to 80%.
International
Si
JCR
No
Title
Procedia Engineering
ISBN
1877-7058
Impact factor JCR
Impact info
Volume
197
10.1016/j.proeng.2017.08.089
Journal number
From page
130
To page
139
Month
SIN MES
Ranking
Participants
  • Autor: Francisco Hueto
  • Autor: Mikko Hokka (Tampere University of Technology)
  • Autor: Rafael Sancho Cadenas (UPM)
  • Autor: Jari Ramón (Tampere University of Technology)
  • Autor: Kauko Östman (Tampere University of Technology)
  • Autor: Francisco Galvez Diaz-Rubio (UPM)
  • Autor: Veli-Tapani Kuokkala (Tampere University of Technology)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Materiales Estructurales Avanzados y Nanomateriales
  • Centro o Instituto I+D+i: CENTRO INVEST. MATERIALES ESTRUCTURALES (CIME)
  • Departamento: Ciencia de Materiales
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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