We consider a neutral particle with permanent magnetic dipole moment in an elastic medium with the presence of a uniform distribution of screw dislocations interacting with a radial electric field. We show that the uniform distribution of dislocations plays the role of an effective uniform magnetic field, and obtain a spectrum of energy which depends on the Aharonov-Casher geometric phase [Y. A...

Abstract The paper uses the modified couple stress theory to study free vibration model of bimodular microbeams with an elastic foundation. Microbeams behave differently in tension and compression zones due property, neutral layer depends on sign bending moment. By figuring out effective strain formula applying Hamilton’s principle, governing equation for can then be derived. takes into account...