Structural Engineering and Mechanics

  • 제76권1호
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  • Pages.17-26
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  • 2020
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Effect of length scale parameters on transversely isotropic thermoelastic medium using new modified couple stress theory

  • Lata, Parveen (Department of Basic and Applied Sciences, Punjabi University) ;
  • Kaur, Harpreet (Department of Basic and Applied Sciences, Punjabi University)
  • 투고 : 2019.04.30
  • 심사 : 2020.05.18
  • 발행 : 2020.10.10
⟨ 이전 논문 다음 논문 ⟩

초록

The objective of this paper is to study the deformation in transversely isotropic thermoelastic solid using new modified couple stress theory subjected to ramp-type thermal source and without energy dissipation. This theory contains three material length scale parameters which can determine the size effects. The couple stress constitutive relationships are introduced for transversely isotropic thermoelastic solid, in which the curvature (rotation gradient) tensor is asymmetric and the couple stress moment tensor is symmetric. Laplace and Fourier transform technique is applied to obtain the solutions of the governing equations. The displacement components, stress components, temperature change and couple stress are obtained in the transformed domain. A numerical inversion technique has been used to obtain the solutions in the physical domain. The effects of length scale parameters are depicted graphically on the resulted quantities. Numerical results show that the proposed model can capture the scale effects of microstructures.

키워드

과제정보

The corresponding author Harpreet Kaur duly acknowledges the Junior Research Fellowship (JRF) received from University Grants Commission (UGC), Delhi India for pursuing her PhD under the sanctioned no. 19/6/2016/(i) EU-V.

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