Synergistic effect of electromagnetic force on fracture behavior of pre-cracked thin metallic structures

Sharma, D and Kumar, P (2017) Synergistic effect of electromagnetic force on fracture behavior of pre-cracked thin metallic structures. In: 14th International Conference on Fracture, ICF 2017, 18 - 20 June 2017, Rhodes, pp. 407-408.

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Abstract

Electromagnetic force assisted fracture of mechanically stressed pre-cracked thin metallic structures was investigated. In absence of any mechanical stress electromagnetic forces at current density j ≥ 4×108A/m2 were observed to cause crack propagation alone, leading to fracture. Finite element analysis showed that stress intensity factor due to electromagnetic forces, KIE, varied as KIE = f(a/w)j2(πa)0.5, where f(a/w) is a geometric factor and a is the crack length. The effects of combined loading of electromagnetic forces and far field mechanical stresses can be superimposed, thereby resulting in fracture at smaller current densities under an applied stress. Experimental results validating the above will be shown.

Item Type:	Conference Paper
Publication:	ICF 2017 - 14th International Conference on Fracture
Publisher:	International Conference on Fracture
Additional Information:	The copyright for this article belongs to International Conference on Fracture.
Keywords:	Electromagnetic field effects; Fracture; Fracture mechanics; Stress analysis, Applied stress; Combined loading; Electromagnetic forces; Fracture behavior; Geometric factors; Mechanical stress; Metallic structures; Synergistic effect, Cracks
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	18 Jul 2022 05:07
Last Modified:	18 Jul 2022 05:07
URI:	https://eprints.iisc.ac.in/id/eprint/74632

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