Kraus, Determination and verification of Johnson- Cook model parameters at high-speed deformation of titanium alloys, Aerospace Science and Technology 45 (2015) 121-127.A.E. Buzyurkin, E.I. Kraus and I.L. Gladky
The transverse response of a yarn is mostly matrix dominated and this assumption is utilized to justify the use of Johnson-Cook model for the describing the strain-rate dependent response of the homogenized tow in this study. For modelling the failure, a Johnson-Cook dynamic failure model was ...
model parameters was verified with Taylor impact tests. Key words :solid mechanics ;mechanical property test ;strength and ductility ;Johnson-Cook constitutive relation and failure model 近 , , , , 年来 由于军用和民用领域的推动 特别是在 型来表征材料行为 一类表征塑性流动 另一类表征材 911 , 。
AbstractThe quasi-static uniaxial tensile test was carried out on the 7N01 aluminum alloy for the EMU to obtain the stress-strain curve.The reverse calculation method of curve fitting and finite element simulation optimization was used to find the parameters of aluminum alloy Johnson-Cook model.The...
Johnson–Cook strength modelJohnson〤ook (JC) high temperature strength material models have been widely used in Finite Element Analysis (FEA) to solve variety of hot rolling problems. In this paper, the temperature and strain rate related parameters of JC model were experimentally calibrated for ...
The Johnson-Cook (J-C) constitutive model is widely used in the finite element simulation, as this model shows the relationship between stress and strain in a simple way. In this paper, a cluster glob关键词: cluster global optimization algorithm constitutive model parameters Johnson-Cook model DO...
versionsoftwoJohnson-Cook(J-C)modelsdescribingflowstressandfailurestrainwerepresentedtocharacterizethepropertiesofQ235Bsteelasafunctionofstrainrate,temperatureandstresstriaxiality.Thecorrespondingmodelparameterswerecalibratedbasedonthetestdataandwiththehelpoffiniteelementsimulation.Thevalidityofthemodelparameterswasverified...
Q235B钢Johnson_Cook模型参数的确定_林莉
simulation.The validity of the model parameters was verif ied with Taylor impact tests. Key words:solid mechanics;mechanica l prope~y test;strength and ductility;Johnson—Cook constitutive relation and faill】re model 近年来 ,由于军用 和民用领域 的推动 ,特别是 在 91 1事件之后 ,冲击爆炸问题越来...
To determine the material model parameters, either (conventional) material tests, which require an extrapolation into the regime of metal cutting, or inverse techniques are used, where the process itself is used as a material test. Using the inverse technique, the model parameters are modified ...