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Modelling of Generalised Thermoelastic Wave Propagation of Multilayer Material under Thermal Shock Behaviour
Joint Authors
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-11
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
This paper describes a time-discontinuous Galerkin finite element method (DGFEM-βc) for the generalised thermoelastic problem of multilayer materials subjected to a transient high-frequency heat source.
The governing and constitutive relations are presented on the basis of the well-known Lord–Shulman (L–S) theory.
A DGFEM-βc method is developed to allow the general temperature-displacement vector and its temporal gradient to be discontinuous at a fixed time t.
A stiffness proportional artificial damping term is added to the final DG discretisation form to filter out the spurious numerical oscillations in the wave-after stage and at adjacent-layer interfaces.
The numerical results show that the present DGFEM-βc provides much more accurate solutions for generalised thermoelastic coupled behaviour of multilayer structures.
Compared with widely used traditional numerical methods (e.g., the Newmark method), the present DGFEM-βc can effectively capture the discontinuities behaviours of impulsive waves in space in the simulation of high modes and sharp gradients.
American Psychological Association (APA)
Guo, Pan& Wu, Wenhua& Zhao, Jun. 2017. Modelling of Generalised Thermoelastic Wave Propagation of Multilayer Material under Thermal Shock Behaviour. Shock and Vibration،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1205094
Modern Language Association (MLA)
Guo, Pan…[et al.]. Modelling of Generalised Thermoelastic Wave Propagation of Multilayer Material under Thermal Shock Behaviour. Shock and Vibration No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1205094
American Medical Association (AMA)
Guo, Pan& Wu, Wenhua& Zhao, Jun. Modelling of Generalised Thermoelastic Wave Propagation of Multilayer Material under Thermal Shock Behaviour. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1205094
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1205094