Abstract
This paper's main objective is to study the two-dimensional deformation of the thermoelastic micro-elongated solid with the effect of initial stress on the model of dual-phase-lag and the theory of Lord and Shulman (L-S). The interface of the elastic half-space and the thermoelastic micro-elongated half-space is utilized to apply mechanical force. The solution has been made using the normal mode analysis method. For aluminum epoxy, numerical simulations are done and graphically presented to demonstrate the presence and complete absence of initial stress on the various physical quantities.
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Abbreviations
- \(P\) :
-
Initial pressure
- εij :
-
The strain tensor where \(\varepsilon_{ij} = \frac{1}{2}(u_{i,j} + u_{j,i} )\)
- j0 :
-
Microinertia
- a0, λ0, λ1 :
-
Micro-elongational constants
- \(T\) :
-
Absolute temperature
- \(T_{0}\) :
-
Reference temperature
- \(\tau_{\theta }\) :
-
Temperature gradient parameter
- \(\tau_{q}\) :
-
Heat flux parameter
- \({\varvec{u}}^{{\text{e}}}\) :
-
Displacement vector in an elastic medium
- \(\rho^{{\text{e}}}\) :
-
Density in an elastic medium
- \(\lambda^{{\text{e}}} ,\mu^{{\text{e}}}\) :
-
Lame's constants in an elastic medium
- \(k^{e}\) :
-
Thermal conductivity in an elastic medium
- \(\rho\) :
-
Density in micro-elongated medium
- \({\varvec{u}}\) :
-
Displacement vector in micro-elongated medium
- \(\sigma_{ij}\) :
-
Component of stress tensor for micro-elongated medium
- \(\varphi\) :
-
Micro-elongational scalar
- \(k\) :
-
Thermal conductivity in micro-elongated medium
- \(c_{{\text{e}}}\) :
-
Specific heat at the constant strain in micro-elongated medium
- \(\lambda ,\mu\) :
-
Lame's constants in micro-elongated medium
- \(c_{{\text{e}}}^{{\text{e}}}\) :
-
Specific heat at the constant strain in an elastic medium
- \(\alpha_{{t_{1} }} \,,\,\alpha_{{t_{2} }}\) :
-
Coefficient of linear thermal expansion where \(\beta_{0} = (\,3\lambda + 2\,\mu \,)\,\alpha_{{t_{1} }}\)\(\beta_{1} = (\,3\lambda + 2\,\mu \,)\,\alpha_{{t_{2} }}\)
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Othman, M.I.A., Atwa, S.Y., Eraki, E.E.M. et al. The initial stress effect on a thermoelastic micro-elongated solid under the dual-phase-lag model. Appl. Phys. A 127, 697 (2021). https://doi.org/10.1007/s00339-021-04809-x
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DOI: https://doi.org/10.1007/s00339-021-04809-x