Third M.I.T. Conference on Computational Fluid and Solid Mechanics June 14–17, 2005  

Stress concentration near the corner point of a magnetoactive 2D compound wedge

Davresh Hasanyana, Liviu Librescua,*, Zhanming Qina, Richard D. Youngb
aDepartment of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0219, USA bNASA Langley Research Center, Hampton VA 23681-2199, USA
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ABSTRACT
It is well known that the stress state at the surface edges of joined bodies can have a significant effect on the strength of the connection. In this paper, a magnetoactive connection that can be modeled as a piecewise homogeneous twodimensional (2D) wedge is assumed, and the magnetoelastic stresses and the magnetic field near the corner point of this wedge are investigated. By using eigenfunction series expansions, all components of the magnetoelastic stresses and the perturbed magnetic field near the corner point are analyzed. It is shown that the applied magnetic field has a significant influence on the stress concentration in the vicinity of the contact surface edge.

Keywords:  Compound wedge; Magnetoelasticity; Stress concentration; Contact surface
* Corresponding author. Tel.: +1 540 231 5916; Fax: +1 540 231 4574; E-mail: librescu@vt.edu