#Name= SAE945X Cold Rolled 30% R=-1 da/dN data # 4.83mm hot rolled plate Cold Rolled to 30% reduction in thickness # Chem.: .05Cwt% .45Mn .008S .011Nb # Ref.: M.T.Yu, D.L.DuQuesnay, T.H.Topper, "Fatigue Bhehavior # of Cold-Rolled SAE Grade 945X HSLA Steel," ASTM # JTest.Eval. V18 N4 July 1990 pp.274-280. # Note: Points digitized from graph to exhibit spread of data. # Original data "K" is tensile portion only. Thus factor 2.0 applied # convert2MPa_mm vers. 1.4 starts... # Program convert to table of mpa_mm, from other units table #Got Original #deltaKunits= mpa_m #Got Original #dadnunits= mm #Conversions: ## 1 ksi*sqrt(inch) = 1.0989*MPa*sqrt(m) ## 1 MPa*sqrt(m) = 31.6228*N/(mm**(3/2) ) ## 1 MPa*sqrt(mm) = 1 N/(mm**(3/2) ) #All inputs converted to MPa*sqrt(mm) and mm/cycle #Note that this is same as N/(mm**(3/2)) and mm/cycle #deltaKunits= mpa_mm #dadnUnits= mm # MPa*sqrt(mm) mm/Cycle 347.147 0.1015920E-06 352.561 0.2557710E-06 369.36 0.3822650E-06 378.918 0.4370260E-06 382.253 0.4008360E-08 405.589 0.6628710E-06 432.503 0.7576410E-06 444.355 0.3910160E-07 446.153 0.4497650E-06 448.188 0.3933310E-06 451.682 0.6148730E-06 461.306 0.7686890E-06 479.521 0.7571350E-06 488.166 0.5295220E-06 498.497 0.7131670E-06 513.316 0.1098220E-05 536.362 0.6716030E-06 554.439 0.1312480E-05 566.662 0.1113990E-05 581.859 0.7790520E-06 589.791 0.5530410E-06 614.303 0.1875190E-05 625.307 0.1391960E-05 652.6 0.1615070E-05 675.533 0.1498830E-05 689.908 0.1901900E-05 732.612 0.2048140E-05 741.732 0.2717830E-05 817.93 0.4928100E-05 854.271 0.3824690E-05 958.74 0.5629220E-05 999.976 0.9063920E-05 1128.2 0.7920680E-05 1344.51 0.1274250E-04 1489.85 0.1715270E-04 1582.07 0.1847170E-04 1735.27 0.5898940E-04 1790.34 0.3202470E-04