ANSYS16.0新增扩展有限元XFEM裂纹扩展仿真简介_百度文库
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ANSYS16.0新增扩展有限元XFEM裂纹扩展仿真简介
&&ANSYS16.0新增扩展有限元XFEM裂纹扩展仿真简介
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debond,*FRACTURE
CRITERION,TYPE=XXX,*
*DEBOND,SLAVE=XXX,MASTER=XXX,time increment=XX 0,1,
time,00*Nset&*INITIAL
CONDITIONS,TYPE=CONTACTmaster,slave,Nset
& interactionspecial,crack
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elementsingularity.Jinteraction-special,crack,,singularitymidside
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(1/r^1/2)midside
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allow the number of elements to changeseed...free
mesh,element typecps6cpe6sweep
mesh,element typecps8cpe8,quad
1.(epp)xx,yySxx,SyySy,?ABAQUSvon
MisesSe=Sy&xxSxx=Sy*pi/SRQT(3)Sy,Syy=Sy*(2 pi)/SRQT(3),3xxyy2.collapse
element1/4?& &
& &1/SQRT(r)1/4u
field1/SQRT(r)& &
& &1/r,1/2u
field1/r,1/rpythonseam,partition& &
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zone modelabaqus6.5cohesive
Crack propagation: The crack
propagation capability allows quasi-static crack growth along
predefined paths to be studied in two-dimensional cases (“Crack
propagation analysis,”&&Section
11.4.3). Cracks debond along user-defined surfaces. Three crack
propagation criteria are available, and multiple cracks can be
included in the analysis. Contour integrals can be requested in
crack propagation problems.
Smeared cracking model (ABAQUS/Standard)&
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(ABAQUS/Explicit)
Concrete Damage plasticity model
1ABAQUS/StandardConcrete
Smeared cracking model (ABAQUS/Standard)——ABAQUS/Standard
STIFFENING
2ABAQUS/ExplicitConcrete&&Brittle
cracking model (ABAQUS/Explicit)
*BRITTLE CRACKING,
*BRITTLE FAILURE,
*BRITTLE SHEAR
Damage plasticity model (cracking)(crushing)
*CONCRETE DAMAGED PLASTICITY
*CONCRETE TENSION STIFFENING
*CONCRETE COMPRESSION HARDENING
*CONCRETE TENSION DAMAGE
*CONCRETE COMPRESSION DAMAGE
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以上网友发言只代表其个人观点，不代表新浪网的观点或立场。基于LS-DYNA模拟碰撞诱发的裂纹扩展
东北大学学报:自然科学版
&&&&&|&&&&|&&&&|&&&&|&&&&|&&&&|&&&&|&&&&|&&
: &&&&DOI: 10.3969/j.issn.15.11.029
基于LS-DYNA模拟碰撞诱发的裂纹扩展
马辉1， 曾劲1， 吴志渊1， 秦朝烨2
(1. 东北大学 机械工程与自动化学院， 辽宁 沈阳. 清华大学 机械工程系， 北京100084)
Crack Propagation Simulation Caused by Collision Based on LS-DYNA Software
MA Hui1， ZENG Jin1， WU Zhi-yuan1， QIN Zhao-ye2
1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， C 2. Department of Mechanical Engineering， Tsinghua University， Beijing 100084， China.
参考文献(10)
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[2]Hosseinzadeh R，Shokrieh M M，Lessard L.Damage behavior of fiber reinforced composite plates subjected to drop weight impacts［J］.Composites Science and Technology，):61-68.
[3]Ehlers S，Broekhuijsen J，Alsos H S，et al.Simulating the collision response of ship side structures:a failure criteria enchmark study［J］.International Shipbuilding Progress，/2):127-144.
[4]Baluch A H，Park Y，Kim C G.High velocity impact characterization of Al alloys for oblique impacts［J］.Acta Astronautica，):128-135.
[5]董赟，蔡敢为，郑战光，等.基于损伤力学的疲劳寿命和裂纹扩展的数值分析［J］.中国机械工程，):.(Dong Yun，Cai Gan-wei，Zheng Zhan-guang，et al.Numerical analyses of fatigue life and crack growth based on damage mechanics［J］. China Mechanical Engineering，):.)
[6]Elmarakbi A M，Hu N，Fukunaga H.Finite element simulation of delamination growth in composite materials using LS-DYNA［J］.Composites Science and Technology，):.
[7]Simonsen B C，T?rnqvist R.Experimental and numerical modelling of ductile crack propagation in large-scale shell structures［J］.Marine Structures，):1-27.
[8]Moslemian R，Karlsson A M，Berggreen C.Accelerated fatigue crack growth simulation in a bimaterial interface［J］.International Journal of Fatigue，):.
[9]B?rvik T，Hopperstad O S，Berstad T，et al.Numerical simulation of plugging failure in ballistic penetration［J］.International Journal of Solids and Structures，/35):.
[10]王泽鹏，胡仁喜，康士廷，等.ANSYS 13.0/LS-DYNA非线性有限元分析实例指导［M］.北京:机械工业出版社，.(Wang Ze-peng，Hu Ren-xi，Kang Shi-ting，et al.ANSYS 13.0/LS-DYNA nonlinear finite element analysis of example instruction［M］.Beijing:China Machine Press，.)
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