有限元实习报告-终极版

有限元上机实习报告

有限元上机实习报告

问题描述：

某岩石洞室断面为椭圆形，如图，岩石的弹性参数E=1.0×105mpa，μ=0.25，在远处作用有水平均布荷载qx和竖向均布荷载qy，不及岩石重力。设计洞室断面与荷载情况由条件确定。最小取5a×5b计算范围，按平面应变问题取1/4（或1/2）洞室计算岩石的位移应变和应力，并对计算结果进行必要的讨论 设计条件

序号 学号 a(m) b(m) qx(mpa) qy(mpa) 28 091412 3.0 4.0 3.2 4.8 输入数据文件

9,1.2

10,3.00,0.00,15.00,0.00 10,2.91,0.97,15.00,5.00 10,2.68,1.79,15.00,10.00 10,2.40,2.40,15.00,15.00 10,2.12,2.83,15.00,20.00 10,1.80,3.20,11.25,20.00 10,1.34,3.58,7.50,20.00 10,0.73,3.88,3.75,20.00 10,0.00,4.00,0.00,20.00 3 1 5 9

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有限元上机实习报告

网格划分

一、输入文件数据（为节省版面单元定义、节点坐标省略）

Ⅰ、 控制数据

99 160 9 22

Ⅱ、节点荷载 11,8.0,0 22,16.0,0 33,16.0,0 44,16.0,0 55,8.0,9.0 66,0,18.0 77,0,18.0 88,0,18.0 99,0,9.0

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有限元上机实习报告

Ⅲ、节点约束条件

1,0,1 89,1,0 2,0,1 90,1,0 3,0,1 91,1,0 4,0,1 92,1,0 5,0,1 93,1,0 6,0,1 94,1,0 7,0,1 95,1,0 8,0,1 96,1,0 9,0,1 97,1,0 10,0,1 98,1,0 11,0,1 99,1,0 Ⅳ、材料弹性性质参数

100000.0 0.25 1.0

二、有限元计算结果（为节省版面数据用双栏给出）

********************** PLAIN PROBLEM **********************

TOTAL NUMBER OF NODES = 99 ELEMENTS = 160 LOADS = 9 FIXITIES = 22

NODAL CO-ORDINATES NODAL CO-ORDINATES 1 3.0 0.0 51 7.04696 9.398 2 3.46227 0.0 52 8.52852 11.37304 3 4.017 0.0 53 10.3064 13.74308 4 4.68267 0.0 54 12.43985 16.58714 5 5.48148 0.0 55 15.0 20.0 6 6.44005 0.0 56 1.8 3.2 7 7.59033 0.0 57 2.16404 3.84718 8 8.97067 0.0 58 2.60089 4.6238 9 10.62708 0.0 59 3.12511 5.55574 10 12.61477 0.0 60 3.75417 6.67407 11 15.0 0.0 61 4.50904 8.01607 12 2.91 0.97 62 5.41489 9.62647 13 3.37574 1.12525 63 6.50191 11.55894 14 3.93463 1.31154 64 7.80633 13.87792 15 4.60529 1.5351 65 9.37163 16.66068 16 5.41009 1.80336 66 11.25 20.0

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有限元上机实习报告

17 6.37585 2.12528 67 1.34 3.58 18 7.53476 2.51159 68 1.5773 4.21254 19 8.92545 2.97515 69 1.86206 4.9716 20 10.59429 3.53143 70 2.20377 5.88246 21 12.59688 4.19896 71 2.61383 6.97549 22 15.0 5.0 72 3.10589 8.28714 23 2.68 1.79 73 3.69637 9.86111 24 3.1546 2.10627 74 4.40495 11.74987 25 3.72412 2.4858 75 5.25524 14.01639 26 4.40755 2.94123 76 6.27558 16.73621 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

ELEMENT 1 2 3 4 5 6 7 8 5.22765 3.48775 77 7.5 20.0 6.21179 4.14357 78 0.73 3.88 7.39274 4.93055 79 0.84634 4.50099 8.80989 5.87494 80 0.98595 5.24617 10.51047 7.0082 81 1.15347 6.14039 12.55117 8.36811 82 1.35451 7.21346 15.0 10.0 83 1.59575 8.50114 2.4 2.4 84 1.88523 10.04635 2.88539 2.88539 85 2.23262 11.90061 3.46785 3.46785 86 2.64948 14.12571 4.16681 4.16681 87 3.14972 16.79585 5.00556 5.00556 88 3.75 20.0 6.01205 6.01205 89 0.0 4.0 7.21985 7.21985 90 0.0 4.61636 8.66921 8.66921 91 0.0 5.356 10.40844 10.40844 92 0.0 6.24357 12.49551 12.49551 93 0.0 7.30864 15.0 15.0 94 0.0 8.58673 2.12 2.83 95 0.0 10.12045 2.61617 3.49144 96 0.0 11.9609 3.21158 4.28516 97 0.0 14.16944 3.92607 5.23763 98 0.0 16.8197 4.78346 6.38059 99 0.0 20.0 5.81232 7.75214 ELEMENT DEFINITIONS

NODE1 NODE2 NODE3 ELEMENT NODE1 NODE2 1 2 12 81 45 57 2 13 12 82 45 46 2 3 13 83 46 58 3 14 13 84 46 47 3 4 14 85 47 59 4 15 14 86 47 48 4 5 15 87 48 60 5 16 15 88 48 49 NODE3 56 57 57 58 58 59 59 60

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