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Crystal plasticity based modelling of the strain rate dependent mechanical behaviour of Ti‑6Al‑4V

(2014)
Author
Promoter
(UGent)
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Abstract
Crystal plasticity models are a very valuable tool for the study of polycrystalline materials (and, notably, metals), due to their capacity to correlate the mechanical behaviour of the material with its microstructure. However, the complexity and high computational cost of these techniques make difficult to combine these advanced models with commonly used finite element simulations. This PhD thesis presents a new method for the solution of polycrystal problems using the Visco Plastic Self Consistent model, or VPSC, and its integration with finite element software. A new implementation has been developed which achieves similar results to previous ones, but with a much better performance. This model has subsequently been applied to the study of Ti-6Al-4V, the most widely used titanium alloy. Using a combination of experimental and modelling techniques, it is studied how the behaviour of the material is affected by factors as strain rate and temperature, and it is shown that the VPSC model is able to capture the anisotropic behaviour of Ti-6Al-4V for a wide range of conditions.
Keywords
crystal plasticity, Ti-6Al-4V, strain rate, VPSC

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Citation

Please use this url to cite or link to this publication:

MLA
Galan Lopez, Jesus. “Crystal Plasticity Based Modelling of the Strain Rate Dependent Mechanical Behaviour of Ti‑6Al‑4V.” 2014 : n. pag. Print.
APA
Galan Lopez, J. (2014). Crystal plasticity based modelling of the strain rate dependent mechanical behaviour of Ti‑6Al‑4V. Ghent University. Faculty of Engineering and Architecture, Ghent, Belgium.
Chicago author-date
Galan Lopez, Jesus. 2014. “Crystal Plasticity Based Modelling of the Strain Rate Dependent Mechanical Behaviour of Ti‑6Al‑4V”. Ghent, Belgium: Ghent University. Faculty of Engineering and Architecture.
Chicago author-date (all authors)
Galan Lopez, Jesus. 2014. “Crystal Plasticity Based Modelling of the Strain Rate Dependent Mechanical Behaviour of Ti‑6Al‑4V”. Ghent, Belgium: Ghent University. Faculty of Engineering and Architecture.
Vancouver
1.
Galan Lopez J. Crystal plasticity based modelling of the strain rate dependent mechanical behaviour of Ti‑6Al‑4V. [Ghent, Belgium]: Ghent University. Faculty of Engineering and Architecture; 2014.
IEEE
[1]
J. Galan Lopez, “Crystal plasticity based modelling of the strain rate dependent mechanical behaviour of Ti‑6Al‑4V,” Ghent University. Faculty of Engineering and Architecture, Ghent, Belgium, 2014.
@phdthesis{4388117,
  abstract     = {Crystal plasticity models are a very valuable tool for the study of polycrystalline materials (and, notably, metals), due to their capacity to correlate the mechanical behaviour of the material with its microstructure.  However, the complexity and high computational cost of these techniques make difficult to combine these advanced models with commonly used finite element simulations.

This PhD thesis presents a new method for the solution of polycrystal problems using the Visco Plastic Self Consistent model, or VPSC, and its integration with finite element software.  A new implementation has been developed which achieves similar results to previous ones, but with a much better performance.

This model has subsequently been applied to the study of Ti-6Al-4V, the most widely used titanium alloy.  Using a combination of experimental and modelling techniques, it is studied how the behaviour of the material is affected by factors as strain rate and temperature, and it is shown that the VPSC model is able to capture the anisotropic behaviour of Ti-6Al-4V for a wide range of conditions.},
  author       = {Galan Lopez, Jesus},
  isbn         = {9789085786825},
  keywords     = {crystal plasticity,Ti-6Al-4V,strain rate,VPSC},
  language     = {eng},
  pages        = {var. p.},
  publisher    = {Ghent University. Faculty of Engineering and Architecture},
  school       = {Ghent University},
  title        = {Crystal plasticity based modelling of the strain rate dependent mechanical behaviour of Ti‑6Al‑4V},
  year         = {2014},
}