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蓝天CAD论坛»论坛 › CAD设计、仿真与工程工具 › CAE仿真与分析 › 用LS-DYNA做的冲击动力分析,冲击物穿透是怎么回事？ ...
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[讨论] 用LS-DYNA做的冲击动力分析,冲击物穿透是怎么回事？

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ly82zl
发表于 2008-9-16 20:31:08 |Error| 显示全部楼层 |阅读模式

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大哥哥大姐姐们你们好，我前段时间做了个冲击分析，但是出了点问题，希望各位师傅帮忙看看，谢谢了~冲击物（solid164）在底板（shell163）上1mm处（考虑了板的厚度），赋予冲击物竖直向下的速度7.67m/s，选择冲击物尖端（球形部分）的节点建立一个compont，选底板上对应冲击物尖端的0.2×0.2区域的节点建立另一个compont，定义接触。选点对面，侵蚀接触，目标面为底板的正方形区域。分析后，冲击物穿透底板。这是怎么回事啊？

[ 本帖最后由 ly82zl 于 2008-9-16 20:32 编辑 ]
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ly82zl
 楼主| 发表于 2008-9-16 20:33:10 |Error| 显示全部楼层
下面是分析的程序流

/BATCH  
/COM,ANSYS RELEASE 10.0    UP20050718       16:08:05    09/16/2008
/input,menust,tmp,'',,,,,,,,,,,,,,,,1   
/COM,ANSYS RELEASE 10.0    UP20050718       16:08:06    09/16/2008
/GRA,POWER
/GST,ON
/PLO,INFO,3
/GRO,CURL,ON
/CPLANE,1   
/REPLOT,RESIZE  
WPSTYLE,,,,,,,,0
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
GPLOT   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/ZOOM,1,SCRN,0.319146,0.005082,0.238154,0.043640
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
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/REP,FAST   
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/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
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/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/SOLU   
FINISH  
/PREP7  
EDCONTACT,0.9,0,2,0,2,1,1,4,0   
EDSP,OFF,' ',' ',1,
!*  
FINISH  
/SOL
EDRST,20,   
EDHTIME,20,
EDDUMP,1,   
!*  
SAVE
/STATUS,SOLU
SOLVE   
FINISH  
/POST1  
/SHOW,WIN32C
SET,FIRST   
/PLOPTS,INFO,3  
/PNUM,MAT,1
/NUMBER,1   
/REPLOT,RESIZE  
PLNSOL,S,EQV
SET,,,,,,,3
PLNSOL,S,EQV
SET,,,,,,,5
PLNSOL,S,EQV
SET,,,,,,,7
PLNSOL,S,EQV
SET,,,,,,,9
PLNSOL,S,EQV
! /UIS,ABORT,1  
/SHOW,WIN32
/REPLOT,RESIZE  
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
FINISH  
/SOL
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
FINISH  
/PREP7  
/UI,MESH,OFF
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/ZOOM,1,SCRN,0.299862,-0.704382,0.272865,-0.631122  
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
EDDC,DELE,ALL,IMPACTOR,PLATE
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
EDCONTACT,0.9,0,2,0,3,1,1,4,1   
EDSP,OFF,' ',' ',1,
!*  
!*  
EDCGEN,ENTS,IMPACTOR,PLATE,0,0,0,0,0,0,1,0, ,0,10000000,0,0
EDCONTACT,0.9,0,2,0,3,1,1,4,1   
EDSP,OFF,' ',' ',1,
!*  
FINISH  
/SOL
CSYS,0  
!*  
EDVE,VELO,IMPACTOR,0,0,-7.67,0,0,0, , , , , ,   
TIME,0.2,   
EDRST,20,   
EDHTIME,20,
EDDUMP,1,   
!*  
SAVE
/STATUS,SOLU
SOLVE   
FINISH  
/POST1  
/SHOW,WIN32C
SET,FIRST   
/PLOPTS,INFO,3  
/PNUM,MAT,1
/NUMBER,1   
/REPLOT,RESIZE  
PLNSOL,S,EQV
SET,,,,,,,3
PLNSOL,S,EQV
! /UIS,ABORT,1  
/SHOW,WIN32
/REPLOT,RESIZE  
FINISH  
/PREP7  
EDCONTACT,0.9,0,2,0,2,1,1,4,1   
EDSP,OFF,' ',' ',1,
!*  
FINISH  
/SOL
/STATUS,SOLU
SOLVE   
FINISH  
/POST1  
/SHOW,WIN32C
SET,FIRST   
/PLOPTS,INFO,3  
/PNUM,MAT,1
/NUMBER,1   
/REPLOT,RESIZE  
PLNSOL,S,EQV
SET,,,,,,,3
PLNSOL,S,EQV
PLNSOL,S,EQV
SET,,,,,,,5
PLNSOL,S,EQV
! /UIS,ABORT,1  
/SHOW,WIN32
/REPLOT,RESIZE  
FINISH  
! /EXIT,NOSAV   
/BATCH  
/COM,ANSYS RELEASE 10.0    UP20050718       17:10:26    09/16/2008
/input,menust,tmp,'',,,,,,,,,,,,,,,,1   
/COM,ANSYS RELEASE 10.0    UP20050718       17:10:26    09/16/2008
/GRA,POWER
/GST,ON
/PLO,INFO,3
/GRO,CURL,ON
/CPLANE,1   
/REPLOT,RESIZE  
WPSTYLE,,,,,,,,0
/REPLOT,RESIZE  
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/SOLU   
FINISH  
/PREP7  
EDCONTACT,0.9,0,2,0,2,1,1,4,0   
EDSP,OFF,' ',' ',1,
!*  
FINISH  
/SOL
/STATUS,SOLU
SOLVE   
FINISH  
/POST1  
/SHOW,WIN32C
SET,FIRST   
/PLOPTS,INFO,3  
/PNUM,MAT,1
/NUMBER,1   
/REPLOT,RESIZE  
PLNSOL,S,EQV
SET,,,,,,,3
PLNSOL,S,EQV
! /UIS,ABORT,1  
/SHOW,WIN32
/REPLOT,RESIZE  
! Start of report captures.
~eui,'package require ansys'
~eui,'ansys::report::setdirectory "mem0911_report"'
/REPLOT,RESIZE  
/PLOPTS,MINM,OFF
/REPLOT,RESIZE  
~eui,'ansys::report::imagecapture {mem0911 Image 1} '   
~eui,'ansys::report::finished'  
/REPLOT,RESIZE  
/REPLOT,RESIZE  
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
GPLOT   
/ANG,1,30,XS,1  
/REP,FAST   
/ANG,1,-30,YS,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
! Start of report captures.
~eui,'package require ansys'
~eui,'ansys::report::setdirectory "mem0911_report"'
/REPLOT,RESIZE  
/PLOPTS,MINM,OFF
/REPLOT,RESIZE  
~eui,'ansys::report::imagecapture {mem0911 Image 2} '   
~eui,'ansys::report::finished'  
/REPLOT,RESIZE  
/REPLOT,RESIZE  
FINISH  
! /EXIT,ALL
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zlzj1208
发表于 2008-9-17 10:28:00 |Error| 显示全部楼层
遇到了相同的问题，改变了接触刚度还是穿透，实在搞不定 ，高手帮忙啊~
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ly82zl
 楼主| 发表于 2008-9-17 18:13:29 |Error| 显示全部楼层
顶起来 别沉下去~
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hans11306
发表于 2008-9-23 14:57:22 |Error| 显示全部楼层
可能是接触没正确,重新试一下!
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ly82zl
 楼主| 发表于 2008-9-25 21:31:48 |Error| 显示全部楼层
原帖由 hans11306 于 2008-9-23 14:57 发表

                               
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可能是接触没正确,重新试一下!
不管正确与否，先谢过了，还是希望高手早早出现，大家多多指点啊~谢谢
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