Inclined crack through a rhombic thin superconducting strip with transport current

Article type: Research Article

Authors: Liu, Q.F.^a | Feng, W.J.^{a; *} | Su, R.K.L.^b

Affiliations: [a] Department of Engineering Mechanics, Shijiazhuang Tiedao University, Shijiazhuang, Hebei, China | [b] Department of Civil Engineering, The University of Hong Kong, Hong Kong, China

Correspondence: [*] Corresponding author: W.J. Feng, Department of Engineering Mechanics, Shijiazhuang Tiedao University, 17 Northeast, Second Inner Ring, Shijiazhuang, Hebei 050043, China. Tel.: +86 311 87936541; Fax: +86 311 87936446; E-mail:wjfeng9999@126.com

Abstract: The fracture properties of an inclined crack through a rhombic thin superconducting strip with transport current are investigated. The flux and current density distributions in the processes of both ascending and descending transport currents are given in clear forms. Adopting the plane strain problem model, the energy release rates (ERRs) of the inclined crack are calculated by the finite element method (FEM). The effects of inclined angle, crack length, maximal thickness and applied maximal transport current on the ERRs are discussed in detail in the process of descending transport current. All the obtained results should be of vital importance for the application of superconductors.

Keywords: Energy relate rate, inclined crack, rhombic superconducting strip, transport current

DOI: 10.3233/JAE-150066

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 49, no. 3, pp. 435-442, 2015