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A platform for research: civil engineering, architecture and urbanism
Interfacial Displacement Discontinuity in Coated Substrate with Couple-Stress Effects
A size-dependent elastic response of a thin-layer-coated substrate induced by a finite-length interfacial displacement discontinuity is fully investigated in the present work. The material microstructures responsible for the size effects are simulated within a continuum-based framework via the couple stress elasticity theory. A method of Fourier transform is adopted first to derive the general solution of an elastic field for both coating layer and coated substrate. The boundary conditions on the free surface, the continuity and discontinuity conditions along the coating interface, and the remote conditions are subsequently enforced together with the established general solution to solve for all key unknowns. Results are collected to demonstrate the effect of material contrast between coating layer and coated substrate and the crucial role of material microstructures on predicted response as the length of displacement discontinuity and the thickness of coating layer becomes comparable to the material length scale.
Interfacial Displacement Discontinuity in Coated Substrate with Couple-Stress Effects
A size-dependent elastic response of a thin-layer-coated substrate induced by a finite-length interfacial displacement discontinuity is fully investigated in the present work. The material microstructures responsible for the size effects are simulated within a continuum-based framework via the couple stress elasticity theory. A method of Fourier transform is adopted first to derive the general solution of an elastic field for both coating layer and coated substrate. The boundary conditions on the free surface, the continuity and discontinuity conditions along the coating interface, and the remote conditions are subsequently enforced together with the established general solution to solve for all key unknowns. Results are collected to demonstrate the effect of material contrast between coating layer and coated substrate and the crucial role of material microstructures on predicted response as the length of displacement discontinuity and the thickness of coating layer becomes comparable to the material length scale.
Interfacial Displacement Discontinuity in Coated Substrate with Couple-Stress Effects
Lecture Notes in Civil Engineering
Geng, Guoqing (editor) / Qian, Xudong (editor) / Poh, Leong Hien (editor) / Pang, Sze Dai (editor) / Wongviboonsin, W. (author) / Gourgiotis, P. A. (author) / Rungamornrat, J. (author)
2023-03-14
9 pages
Article/Chapter (Book)
Electronic Resource
English
Couple stress theory , Interfacial displacement discontinuity , Layered media , Microstructures , Size-dependent effects Engineering , Building Construction and Design , Structural Materials , Solid Mechanics , Sustainable Architecture/Green Buildings , Light Construction, Steel Construction, Timber Construction , Offshore Engineering
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