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1、ANSYS操作實(shí)例問(wèn)題描述某一平板曲鋼板和鐵板焊接而成,焊接材料為銅,平板尺寸為1102橫截結(jié)構(gòu)如圖1所示,平板初始溫度為800°C,將平板放置于空氣屮進(jìn)行冷卻,周圍空氣溫度為30°C,對(duì)流系數(shù)為110W/(m2-°C)o求10分鐘后平板內(nèi)部的溫度場(chǎng)及應(yīng)力分布。材料溫度°C彈性模量Gpa屈服強(qiáng)度Gpa切變模量Gpa導(dǎo)熱系數(shù)W/(m?°C)線膨脹系數(shù)。C"比熱容J/(kg?°C)密度Kg/m3泊松比鋼302061.4020.666.61.06e-546078000.32001921.3319.84001751」51&36
2、001530.9215.68001250.6811.2銅301030.910.33831.75e-539089000.3200990.850.98400900.750.89600790.620.75800580.450.52鐵301181.041」846.55.87e-645070000.32001091.011.02400930.910.86600750.760.69800520.560.51表1材料性能參數(shù)求解步驟第一步:建立工作文件名1、選擇utilitymenu/file/changejobname命令,出現(xiàn)c
3、hangejobname對(duì)話框,在文本框中輸入工作文件名thermal,如圖2所示單擊ok按鈕關(guān)閉對(duì)話框。圖22^選樣mainmenu/prefercens命令,彈岀對(duì)話框,做如圖3改動(dòng)圖3第二步:定義單元類型1、選擇mainmenu/preprocessor/elementtype/add/edit/delete命令2、單擊add按鈕,在生成對(duì)話框屮分別選擇couplefieldsvectorquad13,單擊ok,如圖4所示圖43、單擊elementtype對(duì)話框上的options按鈕,出現(xiàn)plane13eleme
4、nttypeoptions對(duì)話框,在elementdegreeoffreedomkl下拉列表屮選擇uxuytempaz選項(xiàng),其余采用默認(rèn)值,單擊ok,如圖5所示圖54、單擊elementtype對(duì)話框上的add,在出現(xiàn)的對(duì)話框中分別選擇couplefield、scalarbrick5選項(xiàng),單擊ok,如圖6所示LibraryofElementTypesEleventtypesformultipiedisciplinesareshownLibraryofElementTypesMagnetic-EdgeKFElectrom
5、agnetElectrostaticCircuitElecConductionThermalElectricCoupledFieldUserMatrixSupcrGl.?meiitAElementtypereferencenumberOKIApplyCancel圖65、單擊elementtype對(duì)話框中的close按鈕,關(guān)閉對(duì)話框第三步:定義材料性能參數(shù)1、選擇mainmenu/preprocessor/materialprops/materialmodels命令2、在出現(xiàn)的對(duì)話框中依次雙擊thermalconduct
6、ivity、isotropic選項(xiàng),在出現(xiàn)的對(duì)話框中輸入導(dǎo)熱系數(shù)66.6,單擊ok,如圖7所示圖73、依次雙擊stmctral、thermalexpansion>secantcoefficientsisotropic選項(xiàng),在出現(xiàn)的ALPX文本框屮輸入線膨脹系數(shù)1.06e-5,單擊ok如圖8所示rnat^nMaterialModelsDefinedFavoriteHelp□iXISMaterialModelsAvailable12(:41:滲&Thermalconduct,(iso)MaterialModelNumber
7、1冷Structural型LinearNonlinear◎DensityThermalExpansionSecantCoefficient◎nsThermalExpansionSecantCoefficientforMaterialNwnber1ReferencetemperatureT14、依次雙擊structral>density選項(xiàng),在dens文本框中輸入密度7800,單擊ok,如圖9所示圖95、依次雙擊thermaLspecificheat選項(xiàng),在C文木框中輸入比熱460,單擊ok,如圖10所示圖106^依次雙
8、擊structral>linear>elasticisotropic選項(xiàng),在出現(xiàn)的對(duì)話框中單擊addtemperature按鈕4次,如圖11所示設(shè)置,單擊ok7、依次雙擊stmctral、nolinear>inelastic、rateindependent>kinematichardeningplasticcity>misespl