| 2D finite element analysis (FEA) is carried out based on the simulation to an available experiment to investigate the strain state in the Nb3Sn single strand and 3-strad cable under the transverse compression. For 3-strand cable, two configurations of the cross section of the 3-stran cable are modeled to simulate the twist of the strands in the axial direction. The FE models are modeled with four elasto-plastic materials. The rule of mixtures is used to calculate the composite material in the filament areas in the FE models.;The comparisons between the experiment and the simulations are carried out based on the curves of the displacement of the upper plate and the applied force. The curves of them show a similar shape, while there is an offset between them, which can be explained by four reasons. The shape of the simulation curves is explained by the generalized material property of the strands. The use of the composite material makes the FE models work appropriately. The strain distribution in the strands shows that the high-strain areas in the strands. Coupled with the experimental result, it is concluded that the strain state of the strands is correlated with the critical current performance. The different configurations of the cross section of the 3-strand cable has different effects on the strain state of the filament areas of a same strand in the axial direction, while the effects of the different configurations on the strain state of the filament areas in the cable is similar. |
