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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
- n% _- A8 ^' a5 \美国通力（UFC）公司( T4 _7 M+ V9 P2 ~/ `( Y2 L
北理工车辆与交通工程学院计算机应用与仿真中心
' B/ ]! E" b6 h2 F2001 年8 月
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目 录& o7 _3 _# g7 W! u
第1 章 非线性静力分析概述..................................................................................40 i" H) ]1 R( f3 p
1.1 I-DEAS 非线性分析功能简介...............................................................................4# J$ |1 ?/ q7 v
1.2 非线性静力分析的加载方法.................................................................................4
: s, V$ p9 B. ~5 O6 {1.3 材料非线性分析的材料定义.................................................................................9
5 d8 v# ?9 F# k% z1.4 非线性分析的基本步骤............................................................................................108 q) E% d5 Z3 A* ]6 A! ]; [
1.5 I-DEAS 非线性静力学分析的局限性.........................................................10 V8 E/ N1 ?0 b( b1 c
第2 章 非线性静力学有限元列式................................................................ 11
A; w4 |' c0 w2.1 平衡方程................................................................................................................................... 11
- j; K8 d* ?. g2.2 迭代过程...................................................................................................................................129 |* f4 ?) u4 V% J" d! m
2.2.1 几何非线性求解点的迭代程序.................................................................13
4 ]6 P: W" H8 t/ U% d" G1 G% X2.2.2 塑性几何非线性求解点的迭代程序....................................................138 u g" k0 B* F$ Z1 P3 A0 W; b* K
2.2.3 蠕变几何非线性求解点的迭代程序....................................................14
; c+ C5 g6 `* u3 j第3 章 定义非线性静力分析中的加载和求解控制........155 j) d3 x' X& @' _( K! L7 \
3.1 载荷历程及加载方法...................................................................................................156 G& ~. H" |* W3 R
3.2 加载和求解控制（Loading and Solution Control）对话框, r9 E$ c' }8 }
.........................................................................................................................................................................16# w$ O/ K$ G. p1 U1 i* ] y4 N
3.3 选择非线性静态分析的收敛准则.................................................................19
$ j- c# Q7 T+ N5 L+ Y8 ~% d3.4 非线性静态分析中时间段的刚度控制....................................................20- [" M! [! T% i
3.5 选择非线性静态分析的结果输出.................................................................22' F" S; c' E& T- ^0 i5 v& v% J7 h
3.6 非线性静态分析求解选项的选择..........................................................23" ~- x) |$ W; L ]
第4 章 塑性分析........................................................................................................................27) R+ x. f4 ]+ y& j) _( u" F% Y
4.1 概述................................................................................................................................................275 T" `0 C- N F8 K" A, k+ g
4.2 塑性模型...................................................................................................................................27
4 E; _( f/ p# P3 } E" w; y4.2.1 Mises 屈服规则..........................................................................................................28
4 v# F; x' L l; O4.2.2 硬化准则.........................................................................................................................28
# J9 N- S q: H. m+ O* {4.2.3 流动法则.........................................................................................................................30
; S' P4 |0 g! Z第5 章 蠕变分析........................................................................................................................32+ p. l0 f6 J1 O; k. E. b3 e
5.1 概述................................................................................................................................................32
! L" a9 l1 A2 Y i( a5.2 蠕变模型...................................................................................................................................326 d. A4 I" L! v+ L
5.3 蠕变方程...................................................................................................................................34
) N$ Z3 Z: Y* Q' \% S& f5.3.1 蠕变数据的获得......................................................................................................34* v4 m2 o1 P8 V- m2 V% I
5.3.2 蠕变方程的选择......................................................................................................36
" G& m: |2 K( c. S, r' s; I4 P3 a5.4 蠕变控制...................................................................................................................................38' m! w1 J) c t5 f L/ [- T$ d
5.4.1 概述....................................................................................................................................38* V- w* @- R3 `5 x! l! c9 ~, }: K
5.4.2 定义程序对时间步积分的方式.................................................................39
# X8 m. b9 {5 x* y5.4.3 指定下一时间步长的确定准则.................................................................40
" t0 q, A, L. d) [- T; v( I5.4.5 设置时间步大小的附加检查项.................................................................411 \$ L* Q; H5 a3 M+ Z4 P$ e/ C
5.4.6 输入开始分析的初始时间步.......................................................................428 ~2 d' S* d$ ?, Y5 _
第6 章 梁模型的非线性分析................................................................................438 R2 C: m1 {6 `& w6 b7 }+ z( d
6.1 概述................................................................................................................................................43
! W- ?5 _4 g/ m; _: M7 `, B! O- ]6.2 梁的几何非线性分析...................................................................................................43/ i) w2 B6 z1 ~$ q8 g: {1 J6 O
6.3 梁的塑性分析.......................................................................................................................43
( P1 E4 k) y& W* a- R# Z6.3.1 线性梁和锥形梁......................................................................................................436 t% Q! O! E5 W% x, c; q
6.3.2 二次梁...............................................................................................................................44
% M5 {- n% s Q3 _第7 章 接触分析........................................................................................................................46
4 ^5 r5 U* y! ~1 O3 {8 p" T7 ~7.1 概述................................................................................................................................................46
1 Z" v# Z. b$ J! j; k" V! ^7.2 I-DEAS 接触算法.........................................................................................................487 }- R( }1 a4 z7 H" c T7 v3 [
7.2.1 运动学方程..................................................................................................................48
+ c" `. ]/ I2 y" v1 b, o7.2.2 法向接触约束............................................................................................................49
& g( w2 f+ q! X0 S7.2.3 库仑摩擦接触的约束.........................................................................................49
3 t. M+ T. g2 |7.2.4 有限元运动学方程................................................................................................ 50
h! \" U8 v) C$ J" M7.2.5 总体求解策略............................................................................................................519 x9 e9 {7 [+ `- H
7.2.6 接触算法要点小结................................................................................................ 52
2 [" Z1 L( B* M, h% e7.3 怎样在边界条件中设置接触.........................................................................551 e9 j- y) b* L3 V& i8 m1 q) ~# a
7.3.1 接触设置中的几个常用概念.......................................................................55% h# G/ d3 c0 m2 h3 q
7.3.2 接触参数的定义......................................................................................................59
9 r" x3 \6 [$ s1 l7.3.3 定义表面偏置............................................................................................................60% C1 ^ \ L( t W6 V. P
7.3.4 创建附加接触区域................................................................................................ 61$ { x1 `$ N5 o5 i( y
7.3.5 修改接触区..................................................................................................................61) a* X& ?; e) l# c
7.4 求解器中接触控制参数的设置.................................................................62- E# c0 c" F& H+ W8 b
7.5 接触分析的一些技巧和要点.........................................................................635 D1 v8 j& `9 V6 ~7 }. J% M5 ~: ^
参考文献...................................................................................................................................................70 |
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