ItemArticle

Wavefield analysis of nano-scale surface/interface effects on dynamic stress response in biphasic laminated media with circular defects

Title
Wavefield analysis of nano-scale surface/interface effects on dynamic stress response in biphasic laminated media with circular defects
Creator
Singhal, Abhinav; Abass, Kasim Sakran; Saeed, Abdulkafi Mohammed; Hassaballa, Abaker A.; Das, Soumik; Seema, Seema; Chaudhary, Anjali
Description
The dynamic stress concentration around a nanoscale circular hole located at the centre of a two-phase circular laminated medium subjected to localized anti-plane SH-wave loading is examined in this paper. The model (used in this paper) is developed using the complex variable function method combined with wavefield superposition and multipolar expansion. In this framework, GurtinMurdoch (GM) surface and interface elasticity is incorporated at both the material interface and the free surface of the nanohole, resulting in a coupled two-surface formulation that has not been previously reported for biphasic geometries. This leads to non-classical traction-jump conditions and modified stress-free boundary conditions. The resulting infinite system of linear equations is then solved through series truncation. Numerical results reveal that nanoscale surface and interface effects significantly reduce the dynamic stress concentration factor (DSCF) around the hole, with the most substantial attenuation occurring at low wavenumber ratios and low shear modulus ratios. Conversely, the stress reaches its maximum amplification under long-wavelength excitation or when the outer layer is relatively soft. Overall, these findings offer new insights into nanoscale toughening mechanisms in realistic multilayered systems, providing a solid foundation for defect detection, lifetime prediction, and the damage-tolerant design of laminated nanocomposites and coreshell nanostructures. The Author(s), under exclusive licence to Springer Nature B.V. 2026.
Source
International Journal of Mechanics and Materials in Design;Volume;22;Issue;2;Article No.;83;
Date
01-01-2026
Publisher
Springer Science and Business Media B.V.
Subject
Biphasic laminated medium; Complex variable method; Dynamic stress concentration factor; Nanoscale circular hole; SH-wave scattering; Surface/interface elasticity
Coverage
Singhal A., Department of Mathematics, Christ (Deemed to be University), Bengaluru, India; Abass K.S., University of Kirkuk, Kirkuk, 36001, Iraq; Saeed A.M., Qassim University, Buraidah, Saudi Arabia; Hassaballa A.A., Center for Scientific Research and Entrepreneurship, Northern Border University, Arar, 73213, Saudi Arabia; Das S., Amrita Vishwa Vidyapeetham University, Mysuru, India; Seema S., Department of Mathematics, Christ (Deemed to be University), Bengaluru, India; Chaudhary A., Department of Management, College of Business Administration, Princess Nourah bint Abdulrahman University, P.O.Box 84428, Riyadh, 11671, Saudi Arabia
Rights
Restricted Access; Hardcopy may be available in the library
Relation
ISSN: 15691713;
Format
online
Language
English
Type
Article

Citation

Singhal, Abhinav; Abass, Kasim Sakran; Saeed, Abdulkafi Mohammed; Hassaballa, Abaker A.; Das, Soumik; Seema, Seema; Chaudhary, Anjali, “Wavefield analysis of nano-scale surface/interface effects on dynamic stress response in biphasic laminated media with circular defects,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/21930.

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