Crack tip shielding and anti-shielding effects of parallel cracks for a superconductor slab under an electromagnetic force
Creators
- 1. Ministry of Education, Singapore (China)
- 2. Yonsei University, Seoul (Korea, Republic of)
Description
In this letter, the shielding or anti-shielding effect is firstly applied to obtain the behavior of two parallel cracks in a two-dimensional type-II superconducting under electromagnetic force. Fracture analysis is performed by the finite element method and the magnetic behavior of superconductor is described by the critical state Bean model. The stress intensity factors at the crack tips can be obtained and discussed for decreasing field after zero-field cooling. The shielding or anti-shielding effect at the crack tips depend on the distance between two parallel cracks and the crack length. The results indicate that the shielding effects of the two parallel cracks increase when the distance between the two parallel cracks decreases. It can be also obtained that the superconductors with shorter cracks has more remarkable shielding effect than those with longer cracks
Additional details
Publishing Information
- Journal Title
- Journal of Mechanical Science and Technology
- Journal Volume
- 26
- Journal Issue
- 2
- Series
- 21 refs, 5 figs
- Journal Page Range
- p. 353-357
- ISSN
- 1738-494X
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 44015531
- Subject category
- S42: ENGINEERING;
- Descriptors DEI
- CRACKS; FINITE ELEMENT METHOD; FRACTURES; SHIELDING; SLABS; STRESS INTENSITY FACTORS; SUPERCONDUCTORS
- Descriptors DEC
- CALCULATION METHODS; FAILURES; MATHEMATICAL SOLUTIONS; NUMERICAL SOLUTION