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SIMULATION OF DIFFERENT STRAIN PATHS
RESULTS AND DISCUSSIONS
3 other sections not shown
104 reversals 21 Plane as-received condition compared to as-received cyclic strain hardening data and mathematical different strain paths Dislocation structure DP600 sheet steel dual phase steels effect of prestrain effective plastic strain effective strain engineering strain engineering stress experimental data extensometer fatigue lives fatigue performance fatigue properties ferrite ﬁgure gage length increased level of prestrain levels of plane levels of uniaxial levels with uniaxial load LS-Dyna martensite material mathematical formula mathematical model Mechanical properties microstructures minor strain minor true strain modulus of elasticity Neuber factor Number of Reversals percent change plane strain condition plastic strain amplitude predict the fatigue principal strains Reversals to Failure shown in Figure simulation model Simulation results steel piece strain values Strain-life curves strain-life equation stress amplitude stress concentration stress-strain curve tensile testing thickness three prestrain levels throughout their fatigue total strain amplitude uniaxial and plane uniaxial condition uniaxial prestrain condition uniaxial strain uniform elongation