doi:10.1016/j.jcsr.2017.01.024Yun, XiangImperial Coll LondonGardner, LeroyImperial Coll LondonESJournal of Constructional Steel ResearchX. Yun, L. Gardner, Stress-strain curves for hot-rolled steels, J. Constr. Steel Res. 133 (2017) 36-46.
To predict the ductile fracture of high strength steels, this paper divided the identification process into two stages: ①Identify the relationship between equivalent plastic strain and uniaxial true stress for the isotropic J2 plasticity model; ②Identify parameters of fracture strain under multiaxial st...
A prediction method of a stress-strain curve for a hot rolled steel sheet is provided to evaluate formability and work hardening aspect by predicting the stress-strain curve for the hot rolled steel sheet without an experiment, predict the stress-strain curve for the hot rolled steel sheet by ...
Stress-Strain Analysis for Hot-Rolled SteelsAdarsha HAbhijeet NagarajJETIR(www.jetir.org)
mild steelwork-hardeningcrash safetyPrecise stress-strain curves of sheet steels at a wide range of strain-rate are important for automotive crash simulation and usually measured by tensile test. However it is often difficult to measure the true stress in large strain region. Because mild steel ...
Fig. 4. True stress-true strain curves obtained from experiment (uniaxial tensile test) and numerical biaxial tensile test for the (a) RD and (b) TD of 5182-O aluminum alloy at a true stress ratio of σ11:σ22 = 1:0. Table 2. Strain-hardening parameters calibrated based on the...
The cold-rolled sheets were austenitized at 900°C for 30 min in vacuum, followed by ice-brine quenching and sub-zero cooling in liquid nitrogen. The as-quenched specimens exhibited a fully martensitic Mechanical properties Fig. 3 presents the engineering stress – displacement curves of the ...
compression testPrecise stress-strain curves of sheet steels at a wide range of strain-rate are important for automotive crash simulation and usually measured by tensile test. However it is often difficult to measure the true stress in large strain region. Because mild steel tends to start ...
Data obtained under different cutting conditions while machining hot rolled AISI 4340, with and without 50% pre-strain induced by cold rolling, can be used to validate FEA simulations as well as to improve material constitutive models. The thickness of the PSZ is smaller...
cycles, whereas the increase is faster for larger strain range loadings. (a) (b) Figu(ar)e 5. (a) Experimental results, axial stress versus axial s(tbra) in curves under constant strain am- cFppoillgiinttFauuusmitrgddaepueenlr5itetll.uoos5(daata.rdde)aiil(iEnnoanax)ggdap;;Emie((...