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发表于 2008-8-28 10:59:55
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来自: 中国江苏苏州
I-DEAS 非线性有限元分析技术指南, W- u, s$ `; T: l8 s% l, y$ T/ r) I
美国通力(UFC)公司
( `0 c- b+ K1 X北理工车辆与交通工程学院计算机应用与仿真中心8 h8 d4 V. I# s! F
2001 年8 月
5 B4 {8 X; V. S0 G
4 E: f, x2 N% Z6 e w/ k5 J; n目 录
6 z2 i! |+ s' E& [8 @7 i/ D1 [第1 章 非线性静力分析概述..................................................................................40 g+ o; A q. F
1.1 I-DEAS 非线性分析功能简介...............................................................................4# U5 D' s0 l ^
1.2 非线性静力分析的加载方法.................................................................................4
: l! ]' s/ O9 T1.3 材料非线性分析的材料定义.................................................................................9; e+ j2 Z# A) `; t* W( n
1.4 非线性分析的基本步骤............................................................................................10
" v9 F) @' ?' [& c1.5 I-DEAS 非线性静力学分析的局限性.........................................................10
/ [0 r+ r& C/ v第2 章 非线性静力学有限元列式................................................................ 11
& _; I0 ?, N2 ]9 J) b, `# P/ J& S2.1 平衡方程................................................................................................................................... 11
: m# r* r; |+ H, Y& t2.2 迭代过程...................................................................................................................................12" V4 A! u" |% i) G( y: _
2.2.1 几何非线性求解点的迭代程序.................................................................13
7 q, H3 j) u) E1 n' u' L# H2.2.2 塑性几何非线性求解点的迭代程序....................................................13
) X% ?# ^4 M+ u2.2.3 蠕变几何非线性求解点的迭代程序....................................................14$ L; j: F3 x3 h) W- z
第3 章 定义非线性静力分析中的加载和求解控制........151 T5 j, t. H4 X. _' U* x2 L
3.1 载荷历程及加载方法...................................................................................................15
$ C0 X. D6 Q; q7 H3.2 加载和求解控制(Loading and Solution Control)对话框
3 _& U- S4 k7 |2 l w.........................................................................................................................................................................16
6 |5 X6 D$ D. r* j3.3 选择非线性静态分析的收敛准则.................................................................19# Z& R1 c- x+ t2 N* Z7 M
3.4 非线性静态分析中时间段的刚度控制....................................................20
. Y( e7 e: b' `9 V# {* f( A3 y3.5 选择非线性静态分析的结果输出.................................................................22
2 I) } p( t& t' y3 a3.6 非线性静态分析求解选项的选择..........................................................23; \9 P1 q. P+ p/ K$ l& r
第4 章 塑性分析........................................................................................................................27$ O- B# |1 K0 m) R
4.1 概述................................................................................................................................................27
" {+ Z w3 [& ?* p4.2 塑性模型...................................................................................................................................27* W5 X# P4 Q6 N- `# k
4.2.1 Mises 屈服规则..........................................................................................................284 G# N+ y1 j. q2 ~4 ]
4.2.2 硬化准则.........................................................................................................................28
$ P1 Q8 b* W& }1 y4 ^. ]9 Q4.2.3 流动法则.........................................................................................................................30
# d2 i1 x+ F$ Q2 j$ L第5 章 蠕变分析........................................................................................................................32) L# ]7 ?5 D6 A8 x( B( N
5.1 概述................................................................................................................................................32
, L. U. X: q* R1 u, l5.2 蠕变模型...................................................................................................................................32* v1 G" m! v' a: m8 O H
5.3 蠕变方程...................................................................................................................................34/ B$ X* G) l% l
5.3.1 蠕变数据的获得......................................................................................................34 x% f! e' D7 B
5.3.2 蠕变方程的选择......................................................................................................36
; w2 t1 z6 n4 H. Q5.4 蠕变控制...................................................................................................................................38, l" U; W8 S: O* J- J
5.4.1 概述....................................................................................................................................38( B) s+ x6 \, R3 T; Z9 V
5.4.2 定义程序对时间步积分的方式.................................................................39
4 H4 @: t" i1 L5.4.3 指定下一时间步长的确定准则.................................................................40+ R+ X& \9 z9 n) q
5.4.5 设置时间步大小的附加检查项.................................................................413 ?4 V0 I" L$ s i. g: w
5.4.6 输入开始分析的初始时间步.......................................................................42/ {$ X6 Z1 | h) y1 ?: `: M A
第6 章 梁模型的非线性分析................................................................................43; h4 z8 A9 F- b
6.1 概述................................................................................................................................................433 Z/ Y9 [ P( H1 ]% ^
6.2 梁的几何非线性分析...................................................................................................43: m2 C% S, M3 l% T
6.3 梁的塑性分析.......................................................................................................................43
3 Y/ e8 C# w( X3 U9 X; _6 |6.3.1 线性梁和锥形梁......................................................................................................43
8 T7 G' O) p6 v. i( k' c6.3.2 二次梁...............................................................................................................................44
8 X6 u7 `" Z$ y第7 章 接触分析........................................................................................................................46
, C( V) x$ z" |& |1 }- i# B% j7.1 概述................................................................................................................................................464 Y* I9 V& I7 b M! u" f
7.2 I-DEAS 接触算法.........................................................................................................48
) @: L4 j" m+ i2 G& @2 n3 P- W7 n7.2.1 运动学方程..................................................................................................................48
" {- V% ` `$ A, J4 e ^7.2.2 法向接触约束............................................................................................................49/ c) p# R1 k3 S3 y. x2 X m
7.2.3 库仑摩擦接触的约束.........................................................................................49
# w; \% s1 h$ Z) J7.2.4 有限元运动学方程................................................................................................ 50
: l: o( F/ I& I0 j! o( f2 b7.2.5 总体求解策略............................................................................................................51# B( ^, c" S5 y0 y% j& ` ~
7.2.6 接触算法要点小结................................................................................................ 521 f$ m' s7 W6 ]$ Z D
7.3 怎样在边界条件中设置接触.........................................................................55
+ ]- t0 u a9 A7.3.1 接触设置中的几个常用概念.......................................................................55
2 N0 { ?9 J8 n1 ~$ ^% T3 a7.3.2 接触参数的定义......................................................................................................59 m U8 l5 r) R
7.3.3 定义表面偏置............................................................................................................60
1 A, p+ s+ }( C7.3.4 创建附加接触区域................................................................................................ 616 W4 k) R% T# m% m W
7.3.5 修改接触区..................................................................................................................61; o! z9 Q8 _% K( ~
7.4 求解器中接触控制参数的设置.................................................................62- t. l5 d. [( p& M
7.5 接触分析的一些技巧和要点.........................................................................63
1 x) e& A& H2 s参考文献...................................................................................................................................................70 |
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