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Investigation of Viscoelastic-Creep and Mechanical-Hysteresis Behaviors of Hydrostatically Stressed Crystal Using the Phase Field Crystal Method
Joint Authors
Source
Advances in Mathematical Physics
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-20, 20 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-01
Country of Publication
Egypt
No. of Pages
20
Main Subjects
Abstract EN
The phase field crystal (PFC) method is a density-functional-type model with atomistic resolution and operating on diffusive time scales which has been proven to be an efficient tool for predicting numerous material phenomena.
In this work, we first propose a method to predict viscoelastic-creep and mechanical-hysteresis behaviors in a body-centered-cubic (BCC) solid using a PFC method that is incorporated with a pressure-controlled dynamic equation which enables convenient control of deformation by specifying external pressure.
To achieve our objective, we use constant pressure for the viscoelastic-creep study and sinusoidal pressure oscillation for the mechanical-hysteresis study.
The parametric studies show that the relaxation time in the viscoelastic-creep phenomena is proportional to temperature.
Also, mechanical-hysteresis behavior and the complex moduli predicted by the model are consistent with those of the standard linear solid model in a low-frequency pressure oscillation.
Moreover, the impact of temperature on complex moduli is also investigated within the solid-stabilizing range.
These results qualitatively agree with experimental and theoretical observations reported in the previous literature.
We believe that our work should contribute to extending the capability of the PFC method to investigate the deformation problem when the externally applied pressure is required.
American Psychological Association (APA)
Em-Udom, J.& Pisutha-Arnond, N.. 2020. Investigation of Viscoelastic-Creep and Mechanical-Hysteresis Behaviors of Hydrostatically Stressed Crystal Using the Phase Field Crystal Method. Advances in Mathematical Physics،Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1127339
Modern Language Association (MLA)
Em-Udom, J.& Pisutha-Arnond, N.. Investigation of Viscoelastic-Creep and Mechanical-Hysteresis Behaviors of Hydrostatically Stressed Crystal Using the Phase Field Crystal Method. Advances in Mathematical Physics No. 2020 (2020), pp.1-20.
https://search.emarefa.net/detail/BIM-1127339
American Medical Association (AMA)
Em-Udom, J.& Pisutha-Arnond, N.. Investigation of Viscoelastic-Creep and Mechanical-Hysteresis Behaviors of Hydrostatically Stressed Crystal Using the Phase Field Crystal Method. Advances in Mathematical Physics. 2020. Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1127339
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1127339