d (mm)	sigma_y (MPa)
0.002	148.704259
0.003	128.0286871
0.004	113.268546
0.005	104.3418713
0.006	101.9973925
0.007	96.64685447
0.008	89.01700474
0.009	85.06519784
0.01	81.09607601
0.02	67.9265671
0.03	61.58354426
0.04	55.57698551
0.05	54.47574905
0.06	52.91282185
0.07	51.24209931
0.08	48.96504286
0.09	46.38712233
0.10	47.58754587