[11]贾翠玲,陈芙蓉.7A52 铝合金Johnson-Cook 本构模型的有限元模拟[J].兵器材料科学与工程,2018,41(1):30-33. 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 E...
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...
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...
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...
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 ...
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:Adoi:10.6052/j.issn.1000—4750.2012.10.0780DETERMINATIoNoFHoLMQUIST—JoHNSoN—CooKCoNSITIUTIVEMoDELPARAMETERSoFRoCKFANGQin,KONGXiang-zben,WUHao,GONGZi—ming(CollegeofDefenseEngineering,PLAUniversityofScienceand...
砂岩Holmquist-Johnson-Cook模型参数确定
Statistical Determination of Johnson-Cook Model Parameters for Porous Materials by Machine Learning and Particle Swarm Optimization Algorithmadditive manufacturingThis study developed a reliable methodology combined by the machine learning technique, that is, multi-task Gaussian process regression (MTGPR) and...
All the constitutive parameters could be quickly identified by the local search optimization algorithm taking least squares method as the object function. By adopting a stress compensation updating algorithm, a subroutine VUAMT of the proposed constitutive model was programmed on plat of ABAQUS/Explicit...
25、6) PARAMETER (ONE=1.0D0,TWO=2.0D0,THREE=3.0D0,SIX=6.0D0, HALF =0.5d0) DATA NEWTON,TOLER/40,1.D-6/ C C - C UMAT FOR JOHNSON-COOK MODEL C - C PROPS(1) - YANGS MODULUS C PROPS(2) - POISSON RATIO C PROPS(3) - INELASTIC HEAT FRACTION C PARAMETERS OF JOHNSON-COOK MODEL:...