#SAE Standard Data File format

# #SAE Standard Data File format # #

Pick one: #FDE_plot #FDE_fit # #
The FD+E standard file goes below. Use browser "VIEW Source" file to download: #

#<pre>
#Copyright (C) 2025  Fatigue Design + Evaluation Committee of the SAE
#This data file is free software; you can redistribute it and/or
#modify it under the terms of the GNU General Public License as
#published by the Free Software Foundation; either version 2 of the
#license, or (at your option) any later version.
#This data file is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General PUblic License for more details.
#You should have received a copy of the GNU General PUblic License
#along with this program; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
#Try also their web site: http://www.gnu.org/copyleft/gpl.html

# SAE1141 MicroAlloy, Forged+Quench+Temper, Bhn= 259
# HotForged at ~1230C, AirCooled, WaterQuench+Temper
# Chem.: 0.41C 1.58Mn .25Si .016P .09S .143Cu .113Cr
# Chem.: .069Ni .027Mo .056V  Tempered Martensite
# Round samples 6.35mm diam, 19mm gaugeL.
# Ref.: L.Yang, A.Fatemi "Deformation and Fatigue Behavior of 
# Ref.: Vanadium-Based Microalloyed Forging Steel in the
# Ref.: As-Forged and Q+T Conditions, J. Testing and Evaluation,  
# Ref.: V23 n2 March 1995 pp.80-86
# See Ref. for tensile curve.
# Probable Retained Austenite transform during fatigue.
#
#FileType= strain_life
#DataType= raw
#TIMEcol= 0
#NAME=  AISI-1141+V_Q+T
#NAME= MicroAlloy
#Stress_units= mpa
#Strain_units= strain

#Sy=   670 mpa
#Su=   777
#E=   212000.
#%RA=   61.8 %
#%Elongation= 40.  %
#Monotonic_K= 1153 mpa
#Monotonic_n= 0.122
#TrueFractureStress= 1165 
#TrueFractureStrain= 0.963
#BHN=  259  
#
#StrAmpl   2Nf  StsAmp   So   PlsStrAmpl   Emod 
0.01043     1672 595 -14 0.00762 212000
0.0104      1864 579 -12 0.00767 212000
0.00763     4816 550  -6 0.00504 212000
0.00498    12664 505 -10 0.00260 212000
0.00497    16842 491  -8 0.00265 212000
0.00299    69072 441  -9 0.00091 212000
0.00247   256712 443 -35 0.00038 212000
0.00248   168608 446 -22 0.00038 212000
0.00222   740056 435 -40  0.00017 212000
0.00195 10000000 410 -101 0.00002 212000 #runout
#Pt. below is Stress Control test. Mean strain increases to +0.00053
0.00198 10000000 403   0  0.00008 212000
#