# #FileType= strain_life #DataType= fitted #TIMEcol= 0 #Name= PolyAmideImide #Name= GlassFiber_Fitted #Name= polymer_composite # #Copyright (C) 2011 Fatigue Design and Evaluation Comm. #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 #licenseor (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 notwrite to the Free Software #FoundationInc.59 Temple Place - Suite 330BostonMA 02111-1307USA #Try also their web site: http://www.gnu.org/copyleft/gpl.html # # Fitted data Curve! # PolyAmide-Imide 40%(weight) E-Glass (Fibers 0.03mm mostly) # Injection molded into ASTM D638 Type I tensile spec. # Original testing done at R=0.1 Load control. # Ref.: J.F.Mandell, D.D.Huang, F.J.McGarry, "Fatigue of Glass and Carbon # Reinforced Engineering Thermoplastics," Polym. Composites, V2 N3 July, # 1981 pp.137-144. Data digitized manually from plots in Ref. # Converted to fully reversed results using Tensile stress-strain curve # and Neuber Product plot of sqrt(Smax*Sa). Be aware that this is not # an optimum method of describing the curves. # #Stress_units= mpa #Strain_units= strain #E= 21500 mpa (Initial tensile modulus from digitized tens. curve ) #Note: E modulus reported to soften with cycles. Amount not reported # #Su= 202 mpa #eu= 0.0160 # strain at Ultimate #true_fracture_strain= 0.0167 #From digitized curve #true_fracture_stress= 186. mpa #From digitized curve # # Str_Ampl 2Nf Sts_Amp_mpa MeanSts PlsStrAmp InilMod. NeubAmpl 0.016688 1 186.3 0 0.00802 21500 258.5 0.005595 360 86.1 0 0.00159 21500 101.8 0.004009 6628 72.3 0 0.00065 21500 79.0 0.003387 54600 62.9 0 .00046 21500 67.7 0.002765 1040000 53.5 0 0.00028 21500 56.4 #