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[复合材料] 求助~~~用质量扩散模块模拟水分扩散算不出结果

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发表于 2010-12-10 10:35:44 | 显示全部楼层 |阅读模式 来自 华南理工大学
小弟做的一个课题是运用ABAQUS的质量扩散模块模拟水分在复合材料中的扩散,采用的单元类型是DC2D6。然而,在计算过程中并没有出现任何的错误和警告信息,就是算不出来结果,多次调整载荷步参数也无济于事,小弟初学该软件,比较愚钝,百思不得其解
以下是模型STEP部分的INP文件,恳请论坛的XDJM有空帮忙看看问题出在哪了,不胜感激~~~
*Elset, elset=Fiber, internal, generate
1, 21042, 1
*Elset, elset=Matrix, internal, generate
21043, 38742, 1
** Section: Section-1
*Solid Section, elset=Fiber, material=Material-1
1.,
** Section: Section-2
*Solid Section, elset=Matrix, material=Material-2
1.,
*End Part
** ASSEMBLY
**
*Assembly, name=Assembly
*Instance, name=Part-1-1, part=Part-1
*End Instance
**
*Nset, nset=_PickedSet1, internal, instance=Part-1-1
    4, 3474, 3475, 3476, 3477, 3478, 3479, 3480, 3481, 3482, 3483, 3484, 3485, 3486, 3487, 3488
    3489, 3490, 3491, 3492, 3493, 3494, 3495, 3496, 3497, 3498, 3499, 3500, 3501, 3502, 3503, 3504
    3505, 3506, 3507, 3508, 3509, 3510, 3511, 3512, 3513, 3514, 3515, 3516, 3517, 3518, 3519, 3520
    3521, 3522, 3523, 3524, 3525, 3526, 3527, 3528, 1
*Nset, nset=Set-Sym1, internal, instance=Part-1-1
    2, 2842, 2843, 2844, 2845, 2846, 2847, 2848, 2849, 2850, 2851, 2852, 2853, 2854, 2855, 2856
    2857, 2858, 2859, 2860, 2861, 2862, 2863, 2864, 2865, 2866, 2867, 2868, 2869, 2870, 2871, 2872
    2873, 2874, 2875, 2876, 2877, 2878, 2879, 2880, 2881, 2882, 2883, 2884, 2885, 2886, 2887, 2888
    3
*Nset, nset=Set-Sym2, internal, instance=Part-1-1, generate
2889, 3473, 1
*Nset, nset=Set-Sym3, internal, instance=Part-1-1, generate
2189, 2841, 1
*End Assembly
**
*Material,name=Material-1
*Elastic
200000.,0.15
*Density
1750.,
*Diffusivity,LAW=FICK
0.,
*Solubility
0.,
*Material,name=Material-2
*Elastic
3450.,0.35
*Density
1200.,
*Diffusivity,LAW=FICK
8.208D-04
*Solubility
24.,
** PHYSICAL CONSTANTS
*Physical Constants, absolute zero=0.
*Boundary
Set-Sym1,XSYMM
*Boundary
Set-Sym2,YSYMM
*Boundary
Set-Sym3,YSYMM
** STEP: Step-1
*STEP, name=Step-1
*Mass Diffusion, STEADY STATE
1.E-5,1.E-5
*Boundary
_PickedSet1,11,11,0
*END STEP
*Step, name=Step-2
*Mass Diffusion, dcmax=0.01
0.1,5.0,,,1e-04
**BOUNDARY CONDITIONS
*Boundary
_PickedSet1,11,11,0.877
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field, variable=PRESELECT
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step
发表于 2011-12-18 19:06:23 | 显示全部楼层 来自 浙江杭州
Simdroid开发平台
我想请问一下你树脂材料里的扩散率和溶解率参数从哪里获得的?感觉溶解度那个参数不太合适
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