Effect of Different Strain Paths on Mechanical Behavior of Dual Phase Sheet Steel |
Contents
LITERATURE REVIEW | 5 |
SIMULATION OF DIFFERENT STRAIN PATHS | 20 |
Toolmakers Microscope used to measure the principal strains | 40 |
12 other sections not shown
Common terms and phrases
21 Plane As-Received 50 as-received and prestrained as-received condition automotive different strain paths dislocation structure DP600 sheet steel DP600 showing dual phase steels effect of prestrain effective plastic strain effective strain engineering stress extensometer fatigue ductility fatigue properties ferrite gage length increased level of prestrain levels of uniaxial levels with uniaxial load LS-Dyna material mathematical model mechanical properties microstructures minor strain minor true strain modulus of elasticity monotonic Neuber factor Number of Reversals percent change plane strain condition plastic strain amplitude predict the fatigue results of DP600 Reversals to Failure shown in Figure simulation model Simulation results steel piece Strain Amplitude 1.0E-01 strain values Strain-life curves strain-life equation stress amplitude stress concentration stress-strain curve tensile testing testing machine three prestrain levels total elongation total strain amplitude total tool travel true stress uniaxial and plane uniaxial condition uniaxial prestrain condition uniaxial strain uniform elongation yield strength