Elastic Half Space under Axisymmetric Surface Loading and Influence of Couple Stresses

Abstract:

This paper presents the complete elastic field of a half space under axisymmetric surface loads by taking the influence of material microstructures into account. A well-known couple stress theory is adopted to handle such small scale effect and the resulting governing equations are solved by the method of Hankel integral transform. A selected numerical quadrature is then applied to efficiently evaluate all involved integrals. A set of results is also reported to not only confirm the validity of established solutions but also demonstrate the capability of the selected mathematical model to simulate the size-dependent characteristic of the predicted response when the external and internal length scales are comparable.

• Periodical: Applied Mechanics and Materials (Volume 897)
• Pages: 129-133
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.897.129
• Online since: April 2020
• Authors: Jintara Lawongkerd, Toan Minh Le, Suraparb Keawsawasvong, Suchart Limkatanyu, Jaroon Rungamornrat*
• Keywords: Axisymmetric Surface Loading, Couple Stresses, Half Space, Size Dependence

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