1.问题描述
两个高度不同的橡胶球，向下自由落体，撞击一个固定的弹性板；对该现象进行模拟。
软 件：LS-DYNA
材料模型：MAT_BLATZ-KO_RUBBER(橡胶)
接触类型：自动面面接触(CONTACT_AUTOMATIC_SURFACE_TO_SURFACE)
关键 字：LOAD_BODY_GENERALIZED DEFINE_CURVE
2.计算结果
下面给出该计算得到的结果，不再进行具体受力分析讨论。希望有兴趣的朋友共同交流。
3.关键字文件
1 *KEYWORD
2 *DATABASE_FORMAT
3 0
4 $
5 $
6 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
7 $ NODE DEFINITIONS $
8 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
9 $
10 *NODE
11 1 0.000000000E+00 2.000000000E+01 0.000000000E+00 0 0
12 2 0.000000000E+00 2.000000000E+01-5.000000000E+00 0 0
13 .......................
14 3038-1.851977195E+01 9.999999959E-01-1.593175045E+01 0 0
15 3041-2.168197780E+01 9.999999990E-01-1.854674282E+01 0 0
16 $
17 $
18 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
19 $ SECTION DEFINITIONS $
20 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
21 $
22 *SECTION_SOLID
23 1 1
24 $
25 $
26 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
27 $ MATERIAL DEFINITIONS $
28 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
29 $
30 $橡胶
31 *MAT_BLATZ-KO_RUBBER
32 1,1.05E-3,9.0
33 *MAT_BLATZ-KO_RUBBER
34 2,1.05E-3,9.0
35 *MAT_ELASTIC
36 3,7.8E-3,210E3,0.3
37 $
38 $
39 $
40 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
41 $ PARTS DEFINITIONS $
42 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
43 $
44 $
45 *PART
46 Part 1 for Mat 1 and Elem Type 1
47 1 1 1 0 0 0 0
48 $
49 *PART
50 Part 2 for Mat 2 and Elem Type 1
51 2 1 2 0 0 0 0
52 $
53 *PART
54 Part 3 for Mat 3 and Elem Type 1
55 3 1 3 0 0 0 0
56 $
57 $
58 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
59 $ ELEMENT DEFINITIONS $
60 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
61 $
62 *ELEMENT_SOLID
63 1 1 70 74 87 71 93 132 144 106
64 2 1 74 75 86 87 132 134 148 144
65 ........................
66 2062 3 3023 3032 2454 2455 2673 2672 2435 2436
67 2063 3 3032 3041 2453 2454 2672 2671 2434 2435
68 2064 3 3041 2781 2452 2453 2671 2500 2433 2434
69 $
70 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
71 $ BOUNDARY DEFINITIONS $
72 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
73 $
74 *SET_NODE_LIST
75 1 0.000 0.000 0.000 0.000
76 1 8 14 15 16 17 18 38
77 44 45 46 47 48 68 69 70
78 71 72 73 74 75 76 77 78
79 ....................
80 2464 2465 2466 2467 2468 2469 2470 2471
81 2472 2473 2474 2475 2476 2477 2478 2479
82 2480 2752 2753 2754 2755 2756 2757 2758
83 2759 2760 2761 2762 2763 2764 2765 2766
84 2767 2768 2769 2770
85 *BOUNDARY_SPC_SET
86 1 0 0 0 1 0 0 0
87 *SET_NODE_LIST
88 2 0.000 0.000 0.000 0.000
89 1119 1120 1121 1122 1123 1124 1125 1126
90 1127 1128 1129 1130 1131 1132 1133 1134
91 1135 1136 1137 1138 1139 1140 1141 1142
92 1143 1144 1145 1146 1147 1148 1149 1150
93 ..................................
94 2397 2398 2399 2400 2401 2402 2403 2404
95 2405 2406 2407 2408 2409 2410 2411 2412
96 2413 2414 2415 2416 2417 2418 2419 2420
97 2421
98 *BOUNDARY_SPC_SET
99 2 0 1 1 1 0 0 0
100 $
101 $
102 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
103 $ CONTACT DEFINITIONS $
104 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
105 $
106 *CONTACT_AUTOMATIC_SURFACE_TO_SURFACE
107 1 2 3 3 0 0 0 0
108 0.000 0.000 0.000 0.000 0.000 0 0.000 0.1000E+08
109 1.000 1.000 0.000 0.000 1.000 1.000 1.000 1.000
110 *CONTACT_AUTOMATIC_SURFACE_TO_SURFACE
111 1 3 3 3 0 0 0 0
112 0.000 0.000 0.000 0.000 0.000 0 0.000 0.1000E+08
113 1.000 1.000 0.000 0.000 1.000 1.000 1.000 1.000
114 *CONTACT_AUTOMATIC_SURFACE_TO_SURFACE
115 2 3 3 3 0 0 0 0
116 0.000 0.000 0.000 0.000 0.000 0 0.000 0.1000E+08
117 1.000 1.000 0.000 0.000 1.000 1.000 1.000 1.000
118 $
119 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
120 $ CONTROL OPTIONS $
121 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
122 $
123 *DEFINE_CURVE
124 1 0 1.000 1.000 0.000 0.000
125 0.000000000000E+00 9.800000000000E-00
126 1.000000000000E+02 9.800000000000E-00
127 *LOAD_BODY_GENERALIZED
128 1 1118 1 0 0.000 0.000 0.000
129 0.0000 1.0000 0.0000 0.0000 0.0000 0.0000
130 $
131 *CONTROL_ENERGY
132 2 2 2 2
133 *CONTROL_SHELL
134 20.0 1 -1 1 2 2 1
135 *CONTROL_TIMESTEP
136 0.0000 0.9000 0 0.00 0.00
137 *CONTROL_TERMINATION
138 8
139 $
140 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
141 $ TIME HISTORY $
142 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
143 $
144 *DATABASE_BINARY_D3PLOT
145 0.2
146 *DATABASE_BINARY_D3THDT
147 0.2
148 $
149 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
150 $ DATABASE OPTIONS $
151 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
152 $
153 *DATABASE_EXTENT_BINARY
154 0 0 3 1 0 0 0 0
155 0 0 4 0 0 0
156 $
157 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
158 $ INITIAL VELOCITY DEFINITIONS $
159 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
160 $
161 *SET_NODE_LIST
162 3 0.000 0.000 0.000 0.000
163 1 2 3 4 5 6 7 8
164 .......................
165 537 538 539 540 541 542 543 544
166 545 546 547 548 549 550 551 552
167 553 554 555 556 557 558 559
168 *INITIAL_VELOCITY
169 3 0 0
170 0.000 0.000 0.000 0.000 0.000 0.000
171 *SET_NODE_LIST
172 4 0.000 0.000 0.000 0.000
173 560 561 562 563 564 565 566 567
174 568 569 570 571 572 573 574 575
175 576 577 578 579 580 581 582 583
176 .................
177 1104 1105 1106 1107 1108 1109 1110 1111
178 1112 1113 1114 1115 1116 1117 1118
179 *INITIAL_VELOCITY
180 4 0 0
2 *DATABASE_FORMAT
3 0
4 $
5 $
6 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
7 $ NODE DEFINITIONS $
8 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
9 $
10 *NODE
11 1 0.000000000E+00 2.000000000E+01 0.000000000E+00 0 0
12 2 0.000000000E+00 2.000000000E+01-5.000000000E+00 0 0
13 .......................
14 3038-1.851977195E+01 9.999999959E-01-1.593175045E+01 0 0
15 3041-2.168197780E+01 9.999999990E-01-1.854674282E+01 0 0
16 $
17 $
18 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
19 $ SECTION DEFINITIONS $
20 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
21 $
22 *SECTION_SOLID
23 1 1
24 $
25 $
26 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
27 $ MATERIAL DEFINITIONS $
28 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
29 $
30 $橡胶
31 *MAT_BLATZ-KO_RUBBER
32 1,1.05E-3,9.0
33 *MAT_BLATZ-KO_RUBBER
34 2,1.05E-3,9.0
35 *MAT_ELASTIC
36 3,7.8E-3,210E3,0.3
37 $
38 $
39 $
40 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
41 $ PARTS DEFINITIONS $
42 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
43 $
44 $
45 *PART
46 Part 1 for Mat 1 and Elem Type 1
47 1 1 1 0 0 0 0
48 $
49 *PART
50 Part 2 for Mat 2 and Elem Type 1
51 2 1 2 0 0 0 0
52 $
53 *PART
54 Part 3 for Mat 3 and Elem Type 1
55 3 1 3 0 0 0 0
56 $
57 $
58 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
59 $ ELEMENT DEFINITIONS $
60 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
61 $
62 *ELEMENT_SOLID
63 1 1 70 74 87 71 93 132 144 106
64 2 1 74 75 86 87 132 134 148 144
65 ........................
66 2062 3 3023 3032 2454 2455 2673 2672 2435 2436
67 2063 3 3032 3041 2453 2454 2672 2671 2434 2435
68 2064 3 3041 2781 2452 2453 2671 2500 2433 2434
69 $
70 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
71 $ BOUNDARY DEFINITIONS $
72 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
73 $
74 *SET_NODE_LIST
75 1 0.000 0.000 0.000 0.000
76 1 8 14 15 16 17 18 38
77 44 45 46 47 48 68 69 70
78 71 72 73 74 75 76 77 78
79 ....................
80 2464 2465 2466 2467 2468 2469 2470 2471
81 2472 2473 2474 2475 2476 2477 2478 2479
82 2480 2752 2753 2754 2755 2756 2757 2758
83 2759 2760 2761 2762 2763 2764 2765 2766
84 2767 2768 2769 2770
85 *BOUNDARY_SPC_SET
86 1 0 0 0 1 0 0 0
87 *SET_NODE_LIST
88 2 0.000 0.000 0.000 0.000
89 1119 1120 1121 1122 1123 1124 1125 1126
90 1127 1128 1129 1130 1131 1132 1133 1134
91 1135 1136 1137 1138 1139 1140 1141 1142
92 1143 1144 1145 1146 1147 1148 1149 1150
93 ..................................
94 2397 2398 2399 2400 2401 2402 2403 2404
95 2405 2406 2407 2408 2409 2410 2411 2412
96 2413 2414 2415 2416 2417 2418 2419 2420
97 2421
98 *BOUNDARY_SPC_SET
99 2 0 1 1 1 0 0 0
100 $
101 $
102 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
103 $ CONTACT DEFINITIONS $
104 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
105 $
106 *CONTACT_AUTOMATIC_SURFACE_TO_SURFACE
107 1 2 3 3 0 0 0 0
108 0.000 0.000 0.000 0.000 0.000 0 0.000 0.1000E+08
109 1.000 1.000 0.000 0.000 1.000 1.000 1.000 1.000
110 *CONTACT_AUTOMATIC_SURFACE_TO_SURFACE
111 1 3 3 3 0 0 0 0
112 0.000 0.000 0.000 0.000 0.000 0 0.000 0.1000E+08
113 1.000 1.000 0.000 0.000 1.000 1.000 1.000 1.000
114 *CONTACT_AUTOMATIC_SURFACE_TO_SURFACE
115 2 3 3 3 0 0 0 0
116 0.000 0.000 0.000 0.000 0.000 0 0.000 0.1000E+08
117 1.000 1.000 0.000 0.000 1.000 1.000 1.000 1.000
118 $
119 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
120 $ CONTROL OPTIONS $
121 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
122 $
123 *DEFINE_CURVE
124 1 0 1.000 1.000 0.000 0.000
125 0.000000000000E+00 9.800000000000E-00
126 1.000000000000E+02 9.800000000000E-00
127 *LOAD_BODY_GENERALIZED
128 1 1118 1 0 0.000 0.000 0.000
129 0.0000 1.0000 0.0000 0.0000 0.0000 0.0000
130 $
131 *CONTROL_ENERGY
132 2 2 2 2
133 *CONTROL_SHELL
134 20.0 1 -1 1 2 2 1
135 *CONTROL_TIMESTEP
136 0.0000 0.9000 0 0.00 0.00
137 *CONTROL_TERMINATION
138 8
139 $
140 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
141 $ TIME HISTORY $
142 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
143 $
144 *DATABASE_BINARY_D3PLOT
145 0.2
146 *DATABASE_BINARY_D3THDT
147 0.2
148 $
149 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
150 $ DATABASE OPTIONS $
151 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
152 $
153 *DATABASE_EXTENT_BINARY
154 0 0 3 1 0 0 0 0
155 0 0 4 0 0 0
156 $
157 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
158 $ INITIAL VELOCITY DEFINITIONS $
159 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
160 $
161 *SET_NODE_LIST
162 3 0.000 0.000 0.000 0.000
163 1 2 3 4 5 6 7 8
164 .......................
165 537 538 539 540 541 542 543 544
166 545 546 547 548 549 550 551 552
167 553 554 555 556 557 558 559
168 *INITIAL_VELOCITY
169 3 0 0
170 0.000 0.000 0.000 0.000 0.000 0.000
171 *SET_NODE_LIST
172 4 0.000 0.000 0.000 0.000
173 560 561 562 563 564 565 566 567
174 568 569 570 571 572 573 574 575
175 576 577 578 579 580 581 582 583
176 .................
177 1104 1105 1106 1107 1108 1109 1110 1111
178 1112 1113 1114 1115 1116 1117 1118
179 *INITIAL_VELOCITY
180 4 0 0