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1、實(shí)用標(biāo)準(zhǔn)文案有限元法上機(jī)實(shí)習(xí)作業(yè)（一）——彈性力學(xué)平面問(wèn)題有限元分析一、設(shè)計(jì)目的掌握用有限元方法分析彈性力學(xué)平面問(wèn)題的步驟和技巧，熟練使用編制的程序解決工程實(shí)際問(wèn)題，并分析計(jì)算結(jié)果的正確性，分析應(yīng)力分布和位移分布規(guī)律。二、設(shè)計(jì)任務(wù)某地下巖石洞室斷面為直墻拱形，如圖SII.1所示。巖石的彈性參數(shù)E＝1.0105MPa，μ=0.25，在遠(yuǎn)處作用有水平均布荷載qx和豎向均布荷載qy，不計(jì)巖石重力。取5rX5（r+h）計(jì)算范圍，按平面應(yīng)變問(wèn)題取二分之一洞室計(jì)算巖石的位移、應(yīng)變和應(yīng)力，并對(duì)計(jì)算結(jié)果進(jìn)行必要的討論。三、設(shè)計(jì)條件直墻拱形斷面洞室。洞室斷面如圖SII.1所示。圖S
2、II.1直墻拱形斷面洞室示意圖序號(hào)學(xué)號(hào)r(m)h(m)qx(MPa)qy(MPa)150869072.84.83.25.6四、設(shè)計(jì)結(jié)果1、單元?jiǎng)澐?）節(jié)點(diǎn)坐標(biāo)精彩文檔實(shí)用標(biāo)準(zhǔn)文案.00170,-4.80330.00174,-8.38033.00178,-12.67277.00184,-17.82369.00190,-24.00480.74530,-4.80330精彩文檔實(shí)用標(biāo)準(zhǔn)文案1.25879,-8.380331.87497,-12.672772.61439,-17.823693.50170,-24.004801.40170,-4.803302.44494,-8
3、.380333.69682,-12.672775.19909,-17.823697.00180,-24.004802.09110,-4.803303.64885,-8.380335.51815,-12.672777.76131,-17.8236910.45310,-24.004802.80170,-4.803304.88814,-8.380337.39186,-12.6727710.39634,-17.8236914.00170,-24.004802.80170,-3.574804.88814,-6.262677.39186,-9.4881210.39634,-1
4、3.3586614.00170,-18.003302.80170,-2.403304.88814,-4.191687.39186,-6.3377310.39634,-8.9129914.00170,-12.003302.80170,-1.204404.88814,-2.098387.39186,-3.1711610.39634,-4.4585014.00170,-6.003302.80170,-.003304.88814,-.003307.39186,-.0033010.39634,-.0033014.00170,-.003302.71740,.678704.81
5、954,1.203667.34211,1.8336210.36920,2.5895614.00170,3.496702.50470,1.251704.64647,2.321937.21659,3.6062110.30073,5.1473414.00170,6.996702.24420,1.673304.43449,3.307937.06285,5.2694910.21687,7.6233614.00170,10.448001.98230,1.975904.22138,4.215246.90828,6.9024610.13256,10.1271114.00170,1
6、3.996701.67670,2.240403.31165,4.430475.27359,7.058567.62791,10.2122610.45310,13.996701.25500,2.500502.32555,4.642123.61020,7.212065.15179,10.295997.00170,13.99670.66580,2.647701.19410,4.761901.82805,7.298932.58880,10.343373.50170,13.99670.00170,2.79670.00170,4.88314.00170,7.38686.0017
7、0,10.39134.00170,13.99670精彩文檔實(shí)用標(biāo)準(zhǔn)文案2）單元定義精彩文檔實(shí)用標(biāo)準(zhǔn)文案1,2,62,7,62,3,7精彩文檔實(shí)用標(biāo)準(zhǔn)文案3,8,73,4,84,9,84,5,95,10,96,7,117,12,117,8,128,13,128,9,139,14,139,10,1410,15,1411,12,1612,17,1612,13,1713,18,1713,14,1814,19,1814,15,1915,20,1916,17,2117,22,2117,18,2218,23,2218,19,2319,24,2319,20,2420,25,242
8、1,22,
