Benha University

Mohamed Ahmed Kamal Abd-El-Khalik Ahmed Soliman

Lecturer

Faculty of Engineering, Shoubra Engineering Mathematics and Physics

Systematic derivation of the fundamental solutions for couple stress theory

Journal of Physics: Conference Series • 2023
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Publication Information
Authors A R El-metwaly; M A Kamal ; Y F Rashed; A S Ismail; H Nasry
Keywords Not Available
Journal Journal of Physics: Conference Series
Publisher IOP publishing
Volume 2616
Issue 1
Pages 1-7
publication.type Local
Paper Link Open Link
Supplementary Materials Not Available
Abstract
Classical elasticity theory failed to produce accurate results given in agreement with the experimental results. As this theory fails at stress concentration near the gaps or holes, or materials with significant microstructure contributions as soil, composite material, and polymer material generally in aerospace materials. In order to improve accuracy, the consistent couple stress theory is used. In the consistent couple stress theory, the microrotation and macro rotation are equal, where the macro rotation is half the curl of displacement, and the couple stress tensor is skew-symmetric. In this paper, the fundamental solutions for couple stress elasticity are derived in a systematic way via the Hormander technique. The used technique is characterized by its ease and also develops the Galerkin tensor used in many applications, for example, the transformation of domain integral, computing the body force in the domain without discretization. All necessary kernels for displacements and tractions are derived and given in terms of a generalized Galerkin tensor for further use.
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