Transport ac loss in a rectangular thin strip with power-law E(J) relation

Highlights: • Transport ac loss in a thin strip with power-law E(J) is systematically computed. • The scaled results can be accurately used for strips with any critical current and frequency. • Experiments may be unambiguously compared with modeling results at a critical frequency. - Abstract: Transport ac losses of a rectangular thin strip obeying relation E/E_c=(J/J_c)ⁿ with a fixed critical current I_c and n=5,10,20,30, and 40 are accurately computed at a fixed frequency f as functions of the current amplitude I_m. The results may be interpolated and scaled to those at any values of I_c,f, and 5⩽n⩽40. Normalized in the same way as that in Norris’ analytical formula derived from the critical-state model and converting f to a critical frequency f_c, the modeling results may be better compared with the Norris formula and experimental data. A complete set of calculated modeling data are given with necessary formulas to be easily used by experimentalists in any particular case