In this study, a set of HJC model parameters for UHPC with considering the volume ratio of steel fiber ranging from 0% to 3% were firstly determined based on existing test data, originating from the Split-Hopkinson pressure bar (SHPB) test, triaxial test, uniaxial loading test, and Hugoniot...
Specimen geometry is one of the essential parameters that can ease sample fabrication and help in-situ analysis when altered as per convenience. Further, developing a computationally accurate model would reduce the need for multiple experimental iterations, thus saving cost and time. As part of the...
Reverse Calculation Method for Johnson⁃Cook Model Parameters of 7N01 Aluminum Alloy LYU Siyu1,2,3,ZHONG Mu1,2,3,GE Kai4 (1.Key Laboratory of Traffic Safety on Track,Ministry of Education,Changsha Hunan 410075,China;2.Joint International Research Laboratory of Key Technology for Rail Traffic S...
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 , 。
versionsoftwoJohnson-Cook(J-C)modelsdescribingflowstressandfailurestrainwerepresentedtocharacterizethepropertiesofQ235Bsteelasafunctionofstrainrate,temperatureandstresstriaxiality.Thecorrespondingmodelparameterswerecalibratedbasedonthetestdataandwiththehelpoffiniteelementsimulation.Thevalidityofthemodelparameterswasverified...
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...
temperaturestresstriaxiality.Thecorrespondingmodelparameterswerecalibratedbasedtestdatafiniteelementsimulation.ThevaliditymodelparametersTaylorimpacttests.Keywords:solidmechanics;mechanicalpropertytest;strengthductility;JohnsonCookconstitutiverelationfailuremodel 近年来,由于军用和民用领域的推动,特别是在911 事件之后,冲击爆炸问题...
In this paper, the temperature and strain rate related parameters of JC model were experimentally calibrated for eight different steel grades including SAE 1018 and SAE 1045, structural steels (ASTM A572, ASTM A690 and ASTM A992), two V﹎odified 1535/45 grades and one automotive AHSS grade....
关键词 : 固体力学 ; 力学性能试验 ; 强度和延性 ; Johnson 本构关系和失效模 型中 图分类号 : O347. 3 文献标志码 : ADOI: 10. 13465/ j. cnki. jvs. 2014. 09. 028Determination of parameters of Johnson Cook models of Q235B steelLIN Li1, 2, ZHI Xu dong1, FAN Feng1, MENG Shang jiu...
关键词:岩石;Holmquist-Johnson-Cook;LS-DYNA;数值模拟;侵彻深度 中图分类号:TJ012 文献标志码:A doi: 10.6052/j.issn.1000-4750.2012.10.0780 DETERMINATION OF HOLMQUIST-JOHNSON-COOK CONSITIUTIVE MODEL PARAMETERS OF ROCK FANG Qin , KONG Xiang-zhen , WU Hao , GONG Zi-ming (College of Defense ...