2 JC本构——损伤演化段 The Johnson-Cook criterion (available only in Abaqus/Explicit) is a special case of the ductile criterion in which the equivalent plastic strain at the onset of damage, , is assumed to be of the form 上面的英文是帮助文档中对于 Johnson-Cook 损伤准则的解释,具体意思:下...
关键词:航空发动机,风扇/压气机,叶片,硬物损伤,数值模拟,本构模型,失效模型,参数估计基于Johnson-Cook模型的硬物损伤数值模拟研究・II・ABSTRACTForeignobjectdamage(FOD)eventstofan/compressorbladesoftenoccurduringtheoperationofaeroengine.Theyareverydangeroustotheflyingsaftyofaeroengineandaircraft.NumericalmodelingofFOD...
4 如图,点击界面处的下拉菜单并选择【property】模块,在这个模块中可以设置材料的参数 5 点击界面左侧的【material edit】图标,如图所示,点击create创建新的材料,并在弹出的面板上选择【mechanic】-【damage for ductile metal】-【Johnson-Cook damage】,这个就是Johnson-Cook损伤模型了 6 在Johnson-Cook损伤模型...
TC4合金应变率和温度相关变形的Johnson—Cook模型季玉辉,束迎东,胡绪腾(南京航空航天人学能源与动力学院.南京2IOOl6)摘要;#《IC4☆&的准静态目a志试验镕果,建trTC40±白勺Johnsonc∞k奉目模■.并重^Ⅵ究TJol”son,co。k模Ⅲ材料参&**女#世争*#*中足☆{虑*#Ⅻ*目村料参数估计镕%的影㈣。研究#果女明...
The measured crater was compared with that predicted by the corresponding finite element model developed using the finite element code Abaqus/Explicit. The target material behavior was modeled by the Johnson–Cook material model that induced both plastic deformation and damage mechanism. Good agreement ...
johnson-cook damage损伤断裂模型,模拟试样拉伸至断裂的过程,该模型主要设置好5个失效参数d1-d5,熔点温度,转变温度,参考应变率。损伤演化(类型:位移;软化:线性;退化:最大;位移失效:xx。将附件中已设置好的inp,直接导入到ABAQUS中提交运算。 以下内容为付费内容,请购买后观看...
M. Akbari, S. Buhl, C. Leinenbach, K. Wegener, A new value for Johnson Cook damage limit criterion in machining with large negative rake angle as ba- sis for understanding of grinding, J Mater Process Technol 234 (2016) 58-71.
lesson_title%%step_title%The progressive damage and failure models are generally recommended over these models which are restricted to high-strain-rate dynamic problems.These models are commonly used with Johnson-Cook plasticity, because Johnson-Cook plasticity is typically used to model high-strain-...
国产C30混凝土考虑率型微损伤演化的改进Johnson-Cook强度模型
In solid mechanics, the Johnson–Holmquist damage model is used to model the mechanical behavior of damaged brittle materials, such as ceramics, rocks, and concrete, over a range of strain rates. Such materials usually have high compressive strength but low tensile strength and tend to exhibit ...