abaqus單元屬性小結(jié)解析

1、名稱描述tria3CTRIA3 Trian gularEleme ntDefines a tria ngular plate eleme nt (TRIA3) of the structural model.This eleme nt uses a 6 degree-of-freedom per node formulati onConn ecti on疋義機(jī)構(gòu)模型的一角形板單兀。這一單兀用每節(jié)點(diǎn)6 自由度表達(dá)CTRIAR Tria ngularEleme nt Conn ecti onCTRIAR en try is equivale nt to CTRIA3.Un like otherNa

2、stra n codes, a 6 degree-of-freedom per nodeformulati on is used for all shell eleme nts.CTRIAR 條目相當(dāng)于 CTRIA3。不像其他有限兀軟件代碼，6 自由度的每節(jié)點(diǎn)用于所有殼單兀。BM1FACE BarrierDefines quad or tria faces that are in turn used to define aMesh Facebarrier to limit the total deformation for free-shape design regi ons.定義四或三表面反

3、過(guò)來(lái)用于定義限制自由形狀設(shè)計(jì)區(qū)域的總變 形。PLOTEL3 DummyDefines a three-no ded, two-dime nsional dummy eleme ntPlot Eleme ntfor use in plott ingDefin iti on疋義了一個(gè)三節(jié)點(diǎn)，用于繪制一維虛擬單兀CAABSF Defines the freque ncy-depe ndant fluid acoustic absorberFreque ncy-depe ndanteleme nt in coupled fluid-structural an alysiszluid Acoustic定

4、義了依賴于頻率的流體吸聲器兀件耦合流體結(jié)構(gòu)分析Absorber Eleme ntDTRIA3 無(wú)Quad4CQUAD4 Defines a quadrilateral plate eleme nt (QUAD4) of theQuadrilateral Eleme ntstructural model.This eleme nt uses a 6Conn ecti ondegree-of-freedom per node formulati on疋義了一個(gè)四邊形板單兀的模型結(jié)構(gòu)。這一單兀用每節(jié)點(diǎn)6 自由度表達(dá)CQUADR CQUADR entry is equivale nt toCQUAD4

5、 . UnlikeQuadrilateral Eleme ntother Nastra n codes, a 6 degree-of-freedom per nodeConn ecti onformulati on is used for all shell eleme ntsCQUADR 相當(dāng)于 CQUAD4 ,不像其他有限兀軟件，6 自由度的每 節(jié)點(diǎn)用于所有殼單兀。BMFACE同上CSHEARShearDefines a shear panel eleme ntFanel Eleme nt定義剪切面板單兀Conn ecti onPLOTEL4 DummyDefines a four-nod

6、ed, two-dimensional dummy element forPlot Eleme ntuse in plott ingDefin iti on疋義了一個(gè)四節(jié)點(diǎn)，用于繪制一維虛擬單兀CAABSF同上DQUAD4無(wú)Tetra4CTETRA Four-sidedDefines the conn ecti ons of the CTETRA eleme ntSolid Eleme nt with定義了 CTETRA 單元的連接four or ten grid pointsDTETRA4無(wú)Pyramid5CPYRAS3DS3STRI3 |S3RM3D3 JS3RT|SFM3D3F3D3|R

7、3D3ACIN3D3S3/S3R 單元可以作為通用殼單元使用。由于單元中的常應(yīng)變近似，需要?jiǎng)澐州^ 細(xì)的網(wǎng)格來(lái)模擬彎曲變形或高應(yīng)變梯度。S4R 單元性能穩(wěn)定，適用范圍很廣對(duì)于復(fù)合材料，為模擬剪切變形的影響，應(yīng)使用適于厚殼的單元（例如 S4、S4R、 S3、 S3R、S8R），并要注意檢查截面是否保持平面。對(duì)于幾何非線性分析，在 ABAQUS/Standard 中的小應(yīng)變殼單元 （S4R5, S8R, S8R5, S8RT, S9R5, STRI3, 和 STRI65 ）使用總體拉格朗日應(yīng)變算法，應(yīng)力應(yīng)變可以相對(duì)于參考構(gòu)型的材料方向改定。墊片單元是小 應(yīng)變小位移單元，默認(rèn)情況下其應(yīng)力應(yīng)變值也是以初

8、始參考構(gòu)型定義的行為方向輸岀。對(duì)于有限膜應(yīng)變單元（所有的膜單元以及S3/S3R, S4, S4R, SAX,和 SAXA 單元）和在 ABAQUS/Explicit中的小應(yīng)變單元，其材料方向是隨著曲面的平均剛性旋轉(zhuǎn)運(yùn)動(dòng)而變以形成當(dāng)前構(gòu)型的材料方向。此時(shí)這些 單元的應(yīng)力應(yīng)變則是根據(jù)當(dāng)前的參考構(gòu)型中的材料方向給出的。（更詳細(xì)地說(shuō)明可以參考 ABAQUS 相關(guān)手冊(cè)）。用戶可以決定與*section print 和*section file 相關(guān)的局部坐標(biāo)系統(tǒng)是固定不動(dòng)還是隨著曲面的平均剛 性運(yùn)動(dòng)而旋轉(zhuǎn)。Tria3S33-node tria ngular gen eral-purpose shell,

9、 fin ite membra ne stra ins (ide ntical toeleme ntS3R)三節(jié)點(diǎn)三角形通用殼，有限莫應(yīng)變（相當(dāng)于S3R 特性）DS33-node heat tran sfer tria ngular shell三節(jié)點(diǎn)傳熱三角形殼STRI33-node tria ngular facet thin shell三節(jié)點(diǎn)三角形面薄殼S3R3-node tria ngular gen eral-purpose shell, fin ite membra ne stra ins (ide ntical to element S3)3 節(jié)點(diǎn)三角形通用殼，有限膜應(yīng)變（與S3

10、特性相同）M3D33-node tria ngular membra ne3 節(jié)點(diǎn)三角形膜S3RT3-node thermally coupled tria ngular gen eral-purpose shell, fin ite membra ne stra ins(ide ntical to eleme nt S3T)3 節(jié)點(diǎn)熱耦合三角通用殼，有限膜應(yīng)變（與S3T 單兀相同）SFM3D33-node tria ngular surface eleme nt三節(jié)點(diǎn)三角形面單兀F3D3R3D33-node 3D rigid tria ngular facet三節(jié)點(diǎn)三維剛性三角切面ACIN3

11、D33-node linear 3D acoustic infinite element三節(jié)點(diǎn)的線性三維聲無(wú)限兀Quad4S44-node gen eral-purpose shell, fin ite membra ne stra ins4 節(jié)點(diǎn)的通用殼，有限膜應(yīng)變S4R54-node thin shell, reduced integration, hourglass control, using five degrees of freedomper node4 節(jié)點(diǎn)殼薄，縮減積分，沙漏控制，每個(gè)節(jié)點(diǎn)使用5 個(gè)自由度M3D44-node quadrilateral membra ne4 節(jié)

12、點(diǎn)四邊形膜M3D4R4-node quadrilateral membra ne, reduced in tegrati on, hourglass control4 節(jié)點(diǎn)四邊形膜，縮減積分，沙漏控制SFM3D44-node quadrilateral surface eleme nt4 節(jié)點(diǎn)四邊形面單元SFM3D4R4-node quadrilateral surface eleme nt, reduced in tegrati on4 節(jié)點(diǎn)四邊形曲面單元，縮減積分R3D44-node 3D bilinear rigid quadrilateral4 節(jié)點(diǎn)三維雙線性剛性四邊形DS44-nod

13、e heat tran sfer quadrilateral shell4 節(jié)點(diǎn)傳熱四邊形殼F3D4ACIN3D44-node linear 3D acoustic infinite element4 節(jié)點(diǎn)線性三維聲無(wú)限兀S4R4-node general-purpose shell, reduced integration, hourglass control, finite membra nestrai ns4 節(jié)點(diǎn)的通用外殼，縮減積分，沙漏控制，有限膜應(yīng)變S4RT4-node thermally coupled gen eral-purpose shell, reduced in teg

14、rati on, hourglasscontrol, finite membrane strains4 節(jié)點(diǎn)熱耦合通用外殼，縮減積分，沙漏控制，有限膜應(yīng)變GK3D4L4-node three-dime nsion al li ne gasket eleme nt4 節(jié)點(diǎn)三維線密封單元GK3D4LN4-node three-dime nsi on al li ne gasket eleme nt with thick ness-direct ion behavior on ly只有厚度方向反應(yīng)的 4 節(jié)點(diǎn)三維線密封單兀Tetra4C3D44-node lin ear tetrahedr on4

15、節(jié)點(diǎn)線性四面體C3D4H4-node lin ear tetrahedr on, hybrid, li near pressure4 節(jié)點(diǎn)線性四面體，混合，線壓力DC3D44-node lin ear heat tran sfer tetrahedr on4 節(jié)點(diǎn)的線性傳熱四面體C3D4E4-node lin ear piezoelectric tetrahedro n4 節(jié)點(diǎn)線性壓電四面體DC3D4E4-node lin ear coupled thermal-electrical tetrahedr on4 節(jié)點(diǎn)的線性耦合熱 電四面體AC3D44-node lin ear acoustic

16、 tetrahedr on4 節(jié)點(diǎn)線性聲學(xué)四面體Pyramid5C3D88-node lin ear brick8 節(jié)點(diǎn)線性實(shí)體C3D8T8-node thermally coupled brick, trilinear displacement and temperature8 節(jié)點(diǎn)熱耦合實(shí)體，三線性位移和溫度C3D8H8-node lin ear brick, hybrid, con sta nt pressure8 節(jié)點(diǎn)線性實(shí)體，混合，恒壓C3D8HT8-node thermally coupled brick, trili near displaceme nt and temperat

17、ure, hybrid, con stant pressure8 節(jié)點(diǎn)熱耦合實(shí)體，三線性位移和溫度，混合，恒壓C3D8I8-node lin ear brick, in compatible modes8 節(jié)點(diǎn)線性實(shí)體，非協(xié)調(diào)模式C3D8IH8-node lin ear brick, hybrid, li near pressure, in compatible modes8 節(jié)點(diǎn)線性實(shí)體，混合，線壓力，非協(xié)調(diào)模型C3D8R8-node linear brick, reduced integration, hourglass control8 節(jié)點(diǎn)線性實(shí)體，縮減積分，沙漏控制C3D8RH8-n

18、ode linear brick, hybrid, constant pressure, reduced integration, hourglass control8 節(jié)點(diǎn)線性實(shí)體，混合，恒壓，縮減積分，沙漏控制C3D8E8-node linear piezoelectric brick8 節(jié)點(diǎn)線性壓電實(shí)體C3D66-node linear triangular prism6 節(jié)點(diǎn)線性三角形棱柱C3D6H6-node linear triangular prism, hybrid, constant pressure6 節(jié)點(diǎn)線性三角形棱柱，混合，恒定壓力C3D6E6-node linear

19、piezoelectric triangular prism6 節(jié)點(diǎn)線性壓電三角形棱柱C3D8RT8-node thermally coupled brick, trili near displaceme nt and temperature, reduced integrati on, hourglass con trol8 節(jié)點(diǎn)熱耦合實(shí)體，三線性位移和溫度，縮減積分，沙漏控制C3D8RHT8-node thermally coupled brick, trili near displaceme nt and temperature, reducedintegration, hourglas

20、s control, hybrid, constant pressure8 節(jié)點(diǎn)熱耦合實(shí)體，三線性位移和溫度，縮減積分，沙漏控制，混合動(dòng)力，恒 定壓力Pen ta6AC3D66-node linear acoustic triangular prism6 節(jié)點(diǎn)線性聲學(xué)三角形棱柱C3D66-node linear triangular prism6 節(jié)點(diǎn)線性三角形棱柱C3D6H6-node linear triangular prism, hybrid, constant pressure6 節(jié)點(diǎn)線性三角形棱柱，混合動(dòng)力，恒定壓力DC3D66-node lin ear heat tran sfe

21、r tria ngular prism6 節(jié)點(diǎn)線性傳熱三角形棱柱C3D6E6-node linear piezoelectric triangular prism6 節(jié)點(diǎn)線性壓電三角形棱柱DC3D6E6-node linear coupled thermal-electrical triangular prism6 節(jié)點(diǎn)線性耦合熱電三角形棱柱SC6R6-node tria ngular in-pla ne con ti nuum shell wedge, gen eral-purpose continuum shell,fin ite membra ne stra ins6 節(jié)點(diǎn)三角形平面內(nèi)的

22、連續(xù)體殼楔，通用的連續(xù)體殼，有限膜應(yīng)變COH3D66-node three-dime nsional cohesive eleme nt6 節(jié)點(diǎn)三維粘性單元GK3D66-node three-dime nsional gasket eleme nt6 節(jié)點(diǎn)三維襯墊單元GK3D6N6-node three-dime nsional gasket eleme nt with thick ness-direct ion behavior on ly6 節(jié)點(diǎn)三維襯墊單兀只有厚度方向特性SC6RT6-node linear displacement and temperature, triangular

23、 in-plane continuum shell wedge,gen eral-purpose con ti nuum shell, fin ite membra nestrai ns6 節(jié)點(diǎn)的直線位移和溫度，三角形平面內(nèi)的連續(xù)體楔，通用連續(xù)體殼，有限膜 應(yīng)變Hex8C3D8I8-node lin ear brick, in compatible modes8 節(jié)點(diǎn)線性實(shí)體，非協(xié)調(diào)模型C3D88-node lin ear brick8 節(jié)點(diǎn)線性實(shí)體C3D8T8-node thermally coupled brick, trilinear displacement and temperatu

24、re8 節(jié)點(diǎn)熱耦合實(shí)體，三線位移和溫度C3D8H8-node lin ear brick, hybrid, con sta nt pressure8 節(jié)點(diǎn)的線性實(shí)體，混合動(dòng)力，恒定壓力C3D8HT8-node thermally coupled brick, trili near displaceme nt and temperature, hybrid, con stant pressure8 節(jié)點(diǎn)熱耦合實(shí)體，三線性位移和溫度，混合動(dòng)力，恒定壓力C3D8IH8-node lin ear brick, hybrid, li near pressure, in compatible modes8

25、 節(jié)點(diǎn)的線性實(shí)體，混合動(dòng)力，線壓力，非協(xié)調(diào)模型C3D8R8-node linear brick, reduced integration, hourglass control8 節(jié)點(diǎn)的線性實(shí)體，縮減積分，沙漏控制C3D8RH8-node linear brick, hybrid, constant pressure, reduced integration, hourglass control8 節(jié)點(diǎn)的線性實(shí)體，混合動(dòng)力，恒定壓力，縮減積分，沙漏控制C3D8E8-node linear piezoelectric brick8 節(jié)點(diǎn)線性壓電實(shí)體DC3D88-node lin ear heat

26、tran sfer brick8 節(jié)點(diǎn)線性傳熱實(shí)體AC3D88-node linear acoustic brick8 節(jié)點(diǎn)線性聲學(xué)實(shí)體DC3D8E8-node linear coupled thermal-electrical brick8 節(jié)點(diǎn)線性耦合熱電實(shí)體DCC3D88-node convection/diffusion brick8 節(jié)點(diǎn)傳遞/擴(kuò)散實(shí)體DCC3D8D8-node convection/di ffusi on brick, dispers ion con trol8 節(jié)點(diǎn)傳遞/擴(kuò)散實(shí)體，擴(kuò)散性控制SC8R8-node quadrilateral in-plane gen

27、eral-purpose continuum shell, reduced integration withhourglass control, finite membrane strains8 節(jié)點(diǎn)四邊形平面內(nèi)通用連續(xù)外殼，具有沙漏控制和縮減積分，有限膜應(yīng)變COH3D88-node three-dime nsional cohesive eleme nt8 節(jié)點(diǎn)三維粘性單元GK3D88-node three-dime nsional gasket eleme nt8 節(jié)點(diǎn)三維襯墊單元GK3D8N8-node three-dime nsional gasket eleme nt with th

28、ick ness-direct ion behavior on ly8 節(jié)點(diǎn)三維襯墊單兀只有厚度方向的特性C3D8P8-node brick, trilinear displacement, trilinear pore pressure8 節(jié)點(diǎn)實(shí)體，三線位移，三線孔壓C3D8PH8-node brick, trilinear displacement, trilinear pore pressure, hybrid, constant pressure8 節(jié)點(diǎn)實(shí)體，三線位移，三線孔壓，混合動(dòng)力，恒定壓力C3D8RP8-node brick, trilinear displacement, t

29、rilinear pore pressure, reduced in tegrati on8 節(jié)點(diǎn)實(shí)體，三線位移，三線孔隙壓力，縮減積分C3D8RPH8-node brick, trilinear displacement, trilinear pore pressure, reduced integration, hybrid,con sta nt pressure8 節(jié)點(diǎn)實(shí)體，三線位移，三線孔隙壓力，縮減積分，混合動(dòng)力，恒定壓力C3D8RT8-node thermally coupled brick, trili near displaceme nt and temperature, re

30、duced integrati on, hourglass con trol8 節(jié)點(diǎn)熱耦合實(shí)體，三線位移和溫度，縮減積分，沙漏控制C3D8RHT8-node thermally coupled brick, trili near displaceme nt and temperature, reducedintegration, hourglass control, hybrid, constant pressure8 節(jié)點(diǎn)熱耦合實(shí)體，三線位移和溫度，縮減積分，沙漏控制，混合動(dòng)力，恒定 壓力SC8RT8-node lin ear displaceme nt and temperature, q

31、uadrilateral in-pla ne gen eral- purposecontinuum shell, reduced integration with hourglass control, finite membra ne strai ns8 節(jié)點(diǎn)的線性位移和溫度， 四邊形平面內(nèi)通用的連續(xù)體外殼，具有沙漏控制和縮減積分，有限膜應(yīng)變CCL1212-node cylindrical brick12 節(jié)點(diǎn)的圓柱形實(shí)體Tria6STRI656-node triangular thin shell, using five degrees of freedom per node6 節(jié)點(diǎn)三角形溥

32、殼，每個(gè)節(jié)點(diǎn)有五個(gè)自由度DS66-node heat tran sfer tria ngular shell6 節(jié)點(diǎn)傳熱三角形殼M3D66-node tria ngular membra ne6 節(jié)點(diǎn)三角形膜SFM3D66-node tria ngular surface eleme nt6 節(jié)點(diǎn)三角形面單元Quad8S8R8-node doubly curved thick shell, reduced in tegrati on8 節(jié)點(diǎn)雙重彎曲厚殼，縮減積分S8R58-node doubly curved thin shell, reduced integration, using fiv

33、e degrees of freedom pernode8 節(jié)點(diǎn)雙重彎曲厚殼，縮減積分，每節(jié)點(diǎn)有五個(gè)自由度S8RT8-node thermally coupled quadrilateral gen eral thick shell, biquadratic displaceme nt, bilinear temperature in the shell surface8 節(jié)點(diǎn)熱耦合四邊形通用厚殼，四次位移，外殼表面的線性位移DS88-node heat tran sfer quadrilateral shell8 節(jié)點(diǎn)傳熱四邊形殼M3D88-node quadrilateral membra

34、 ne8 節(jié)點(diǎn)四邊形膜M3D8R8-node quadrilateral membra ne, reduced in tegrati on8 節(jié)點(diǎn)四邊形膜，縮減積分SFM3D88-node quadrilateral surface eleme nt8 節(jié)點(diǎn)四邊形面單元SFM3D8R8-node quadrilateral surface eleme nt, reduced in tegrati on8 節(jié)點(diǎn)四邊形曲面單元，縮減積分TetralOC3D1010-node quadratic tetrahedr on10 節(jié)點(diǎn)二次四面體C3D10H10-node quadratic tetrah

35、edron, hybrid, constant pressure10 節(jié)點(diǎn)二次四面體，混合動(dòng)力，恒定壓力C3D10M10-node modified tetrahedro n, hourglass con trol10 節(jié)點(diǎn)修飾四面體，沙漏控制C3D10MH10-node modified quadratic tetrahedron, hybrid, linear pressure, hourglass control10 節(jié)點(diǎn)修飾四面體，混合動(dòng)力，線壓力，沙漏控制DC3D1010-node quadratic heat tran sfer tetrahedro n10 節(jié)點(diǎn)二次傳熱四面體C3

36、D10E10-node quadratic piezoelectric tetrahedron10 節(jié)點(diǎn)二次壓電四面體DC3D10E10-node quadratic coupled thermal-electrical tetrahedron10 節(jié)點(diǎn)二次熱一電耦合四面體AC3D1010-node quadratic acoustic tetrahedron10 節(jié)點(diǎn)二次聲學(xué)四面體C3D10MP10-node modified displaceme nt and pore pressure tetrahedr on, hourglass control10 節(jié)點(diǎn)修飾位移和孔隙壓力四面體，沙漏

37、控制C3D10MPH10-node modified displaceme nt and pore pressure tetrahedro n, hybrid, li near pressure,hourglass con trol10 節(jié)點(diǎn)修飾位移和孔隙壓力四面體，混合動(dòng)力，線壓力，沙漏控制C3D10MT10-node thermally coupled modified quadratic tetrahedr on, hourglass control10 節(jié)點(diǎn)熱耦合修飾二次四面體，沙漏控制C3D10I10-node gen eral-purpose quadratic tetrahedr

38、 on, i mproved surface stress visualizati on10 節(jié)點(diǎn)的通用二次四面體，提咼表面應(yīng)力形象化Pyramid13C3D2020-node quadratic brick20 節(jié)點(diǎn)二次實(shí)體C3D20H20-node quadratic brick, hybrid, li near pressure20 節(jié)點(diǎn)二次實(shí)體，混合動(dòng)力，線壓力C3D20R20-node quadratic brick, reduced integration20 節(jié)點(diǎn)二次實(shí)體，縮減積分C3D20RH20-node quadratic brick, hybrid, li near pr

39、essure, reduced in tegrati on20 節(jié)點(diǎn)二次實(shí)體，混合動(dòng)力，線壓力，縮減積分C3D20E20-node quadratic piezoelectric brick20 節(jié)點(diǎn)二次壓電實(shí)體C3D20RE20-node quadratic piezoelectric brick, reduced integration20 節(jié)點(diǎn)二次壓電實(shí)，縮減積分C3D20T20-node thermally coupled brick, triquadratic displacement, trilinear temperature20 節(jié)點(diǎn)熱耦合實(shí)體，三重二次位移，三線性溫度C3D2

40、0HT20-node thermally coupled brick, triquadratic displacement, trilinear temperature,hybrid, li near pressure20 節(jié)點(diǎn)熱耦合實(shí)體，三重二次位移，三線溫度，混合動(dòng)力，線壓力C3D20RT20-node thermally coupled brick, triquadratic displacement, trilinear temperature,reduced in tegrati on20 節(jié)點(diǎn)熱耦合實(shí)體，三重二次位移，三線溫度，縮減積分C3D20RHT20-node thermal

41、ly coupled brick, triquadratic displacement, trilinear temperature, hybrid,li near pressure, reduced in tegrati on20 節(jié)點(diǎn)熱耦合實(shí)體，三重二次位移，三線溫度，混合動(dòng)力，線壓力，縮減積 分C3D1515-node quadratic triangular prism15 節(jié)點(diǎn)二次三角形棱柱C3D15H15-node quadratic triangular prism, hybrid, linear pressure15 節(jié)點(diǎn)二次三角形棱柱，混合動(dòng)力，線壓力C3D15E15-nod

42、e quadratic piezoelectric triangular prism15 節(jié)點(diǎn)二次壓電三角形棱柱Pe nta15C3D1515-node quadratic triangular prism15 節(jié)點(diǎn)二次三角形棱柱C3D15H15-node quadratic triangular prism, hybrid, linear pressure15 節(jié)點(diǎn)二次三角形棱柱，混合動(dòng)力，線壓力DC3D1515-node quadratic heat tran sfer tria ngular prism15 節(jié)點(diǎn)二次傳熱三角形棱柱C3D15E15-node quadratic piezo

43、electric triangular prism15 節(jié)點(diǎn)二次壓電三角形棱柱DC3D15E15-node quadratic coupled thermal-electrical triangular prism15 節(jié)點(diǎn)二次耦合熱一電三角形棱柱AC3D1515-node quadratic acoustic triangular prism15 節(jié)點(diǎn)二次聲學(xué)三角形棱柱Hex20C3D2020-node quadratic brick20 節(jié)點(diǎn)二次實(shí)體C3D20H20-node quadratic brick, hybrid, li near pressure20 節(jié)點(diǎn)二次實(shí)體，混合動(dòng)力，線

44、壓力C3D20R20-node quadratic brick, reduced integration20 節(jié)點(diǎn)二次實(shí)體，縮減積分C3D20RH20-node quadratic brick, hybrid, li near pressure, reduced in tegrati on20 節(jié)點(diǎn)二次實(shí)體，混合動(dòng)力，線壓力，縮減積分DC3D2020-node quadratic heat tran sfer brick20 節(jié)點(diǎn)二次傳熱實(shí)體AC3D2020-node quadratic acoustic brick20 節(jié)點(diǎn)二次聲學(xué)實(shí)體C3D20E20-node quadratic piez

45、oelectric brick20 節(jié)點(diǎn)二次壓電實(shí)體C3D20RE20-node quadratic piezoelectric brick, reduced integration20 節(jié)點(diǎn)二次壓電實(shí)，縮減積分C3D20T20-node thermally coupled brick, triquadratic displacement, trilinear temperature20 節(jié)點(diǎn)熱耦合實(shí)體，三重二次位移，三線性溫度C3D20HT20-node thermally coupled brick, triquadratic displacement, trilinear tempera

46、ture,hybrid, li near pressure20 節(jié)點(diǎn)熱耦合實(shí)體，三重二次位移，三線溫度，混合動(dòng)力，線壓力C3D20RT20-node thermally coupled brick, triquadratic displacement, trilinear temperature,reduced in tegrati on20 節(jié)點(diǎn)熱耦合實(shí)體，三重二次位移，三線溫度，縮減積分C3D20RHT20-node thermally coupled brick, triquadratic displacement, trilinear temperature, hybrid,li ne

47、ar pressure, reduced in tegrati on20 節(jié)點(diǎn)熱耦合實(shí)體，三重二次位移，三線溫度，混合動(dòng)力，線壓力，縮減積 分DC3D20E20-node quadratic coupled thermal-electrical brick20 節(jié)點(diǎn)二次耦合熱電實(shí)體C3D20P20-node brick, triquadratic displacement, trilinear pore pressure20 節(jié)點(diǎn)實(shí)體，三重二次位移，三線孔隙壓力C3D20PH20-node brick, triquadratic displacement, trilinear pore pre

48、ssure, hybrid, linear pressure20 節(jié)點(diǎn)實(shí)體。三重二次位移，三線孔隙壓力，混合動(dòng)力，線壓力C3D20RP20-node brick, triquadratic displaceme nt, trili near pore pressure, reduced in tegrati on20 節(jié)點(diǎn)實(shí)體，三重二次位移，三線孔隙壓力，縮減積分C3D20RPH20-node brick, triquadratic displacement, trilinear pore pressure, hybrid, linear pressure,reduced in tegrati

49、 on20 節(jié)點(diǎn)實(shí)體，三重二次位移，三線孔隙壓力，混合動(dòng)力，線壓力，縮減積分ABAQUS單元小結(jié)1、單元表征單元族：?jiǎn)卧掷镩_(kāi)始的字母標(biāo)志著這種單元屬于哪一個(gè)單元族。C3D8I 是實(shí)體單元；S4R 是殼單元；CINPE4 是無(wú)限元；梁?jiǎn)卧?；剛體單元；膜單元；特殊目的單元，例如彈簧，粘壺和質(zhì)量：桁架單元。自由度 dof （和單元族直接相關(guān)）：每一節(jié)點(diǎn)處的平動(dòng)和轉(zhuǎn)動(dòng)11 方向的平動(dòng)22 方向的平動(dòng)33 方向的平動(dòng)4 繞 1 軸的轉(zhuǎn)動(dòng)5 繞 2 軸的轉(zhuǎn)動(dòng)6 繞 3 軸的轉(zhuǎn)動(dòng)7 開(kāi)截面梁?jiǎn)卧穆N曲8 聲壓或孔隙壓力9 電勢(shì)11 度（或物質(zhì)擴(kuò)散分析中歸一化濃度）12+梁和殼厚度上其它點(diǎn)的溫度軸對(duì)稱單元

50、1r 方向的平動(dòng)2z 方向的平動(dòng)6 r-z 方向的轉(zhuǎn)動(dòng)節(jié)點(diǎn)數(shù)：決定單元插值的階數(shù)數(shù)學(xué)捲述：定義單元行為的數(shù)學(xué)理論積分：應(yīng)用數(shù)值方法在每一單元的體積上對(duì)不同的變量進(jìn)行積分。大部分單元 采用高斯積分方法計(jì)算單元內(nèi)每一高斯點(diǎn)處的材料響應(yīng)。單元末尾用字母“R” 識(shí)別減縮積分單元，否則是全積分單元。ABAQUS 擁有廣泛適用于結(jié)構(gòu)應(yīng)用的龐大單元庫(kù)。單元類型的選擇對(duì)模擬 計(jì)算的精度和效率有重大的影響；節(jié)點(diǎn)的有效自由度依賴于此節(jié)點(diǎn)所在的單元類型；單元的名字完整地標(biāo)明了單元族、單元的數(shù)學(xué)描述、節(jié)點(diǎn)數(shù)及積分類型； 所用的單元都必須指定單元性質(zhì)選項(xiàng)。單元性質(zhì)選項(xiàng)不僅用來(lái)提供定義單 元幾何形狀的附加數(shù)據(jù)，而且用來(lái)識(shí)

51、別相關(guān)的材料性質(zhì)定義；對(duì)于實(shí)體單元，ABAQUS 參考整體笛卡爾坐標(biāo)彖來(lái)定義單元的輸出變量， 如應(yīng)力和應(yīng)變?？梢杂?ORIENTATION 選項(xiàng)將整體坐標(biāo)系改為局部坐標(biāo)系：對(duì)于三維殼單元，ABAQUS 參考建立在殼表面上的一個(gè)坐標(biāo)系來(lái)定義單元 的輸出變量?？梢杂?0RIEOTATI0N 選項(xiàng)更改這個(gè)參考坐標(biāo)系。2. 實(shí)體單元(C)實(shí)體單元可在其任何表面與其他單元連接起來(lái)。C3D:三維單元CAX:無(wú)扭曲軸對(duì)稱單元，模擬 360的環(huán)，用于分析受軸對(duì)稱載荷作用，具 有軸對(duì)稱幾何形狀的結(jié)構(gòu)；CPE:平面應(yīng)變單元，假定離面應(yīng)變第為零，用力模擬厚結(jié)構(gòu)；CPS:平面應(yīng)力單元，假定離面應(yīng)力。陰為零，用力模擬薄

52、結(jié)構(gòu)；廣義平面應(yīng)變單元包括附加的推廣：離面應(yīng)變可以隨著模型平面內(nèi)的位置 線咗變化。這種數(shù)學(xué)描述特別適合于厚截面的熱應(yīng)力分析?？梢耘で妮S對(duì)稱單元：用來(lái)模擬初始時(shí)為軸對(duì)稱的幾何形狀，且能沿對(duì) 稱軸發(fā)生扭曲。這些單元對(duì)于模擬圓柱形結(jié)構(gòu)，例如軸對(duì)稱橡膠套爸的扭轉(zhuǎn)很 有用。怎對(duì)稱單元的軸對(duì)稱單元：用來(lái)模擬初始為軸對(duì)稱幾何形狀的反對(duì)稱變 形。適合于模擬像承受剪切載荷作用的軸對(duì)稱橡膠支座一類的問(wèn)題。如果不需要模擬非常大的應(yīng)變或進(jìn)行一個(gè)復(fù)雜的，改變接觸條件的問(wèn)題， 則應(yīng)采用二次減縮積分單元(CAX8R, CPE8R, CPS8& C3D2OR)如果存在應(yīng)力集中，則應(yīng)在局部采用二次完全積分單元 (CA

53、X8, CPE8, CPS8, C3D20等)。對(duì)含有非常大的網(wǎng)格扭曲模擬(大應(yīng)變分析)，采用細(xì)網(wǎng)格劃分的線性減 縮枳分單元(CAX4R, CPE4R, CPS4R, C3D8R 等)對(duì)接觸問(wèn)題采用線性減縮積分單元或非協(xié)調(diào)元(CAX4L CPE4I,CPS4I, C338I)的細(xì)網(wǎng)格劃分。如果在模型中采用非協(xié)調(diào)元應(yīng)使網(wǎng)格扭曲減至最小。三維情況應(yīng)盡可能釆用塊狀單元(六面體)。當(dāng)幾何形狀復(fù)雜時(shí)，完全采 用塊體單元構(gòu)造網(wǎng)格會(huì)很困難，因此可能有必要采用澳形和四面體單元，但盡 量少用，并遠(yuǎn)離需要精確求解的區(qū)域。一些前處理程序包括網(wǎng)格劃分方法，它們可用四面體單元構(gòu)造任意形狀的 網(wǎng)格。只要采用二次四面體單元

54、(C3D1O),其結(jié)果對(duì)小位移問(wèn)題應(yīng)該是合埋的 小結(jié)：在 k 體單元中所用的數(shù)學(xué)公式和積分階數(shù)對(duì)分析的精度和花費(fèi)有顯著的 影響；使用完全積分單元，尤其是一階(線性)單元，容易形成自鎖現(xiàn)象，正常 情況不用；一階減縮積分單元容易出現(xiàn)沙漏現(xiàn)象；充分的單元細(xì)化可減小這種問(wèn)題； 在分析中如有彎曲位移，且釆用一階減縮積分單元時(shí)，應(yīng)在厚度方向至少 用 4 個(gè)單元；沙漏現(xiàn)象在二階減縮積分單元中較少見(jiàn)，一般問(wèn)題應(yīng)考慮應(yīng)用這些單元； 非協(xié)調(diào)單元的精度依賴于單元扭曲的量值；結(jié)果的數(shù)值精度依賴于所用的網(wǎng)格，應(yīng)進(jìn)行網(wǎng)格細(xì)化研究以確保該網(wǎng)格對(duì) 問(wèn)題提供了唯一的解答。但是應(yīng)記住使用一個(gè)收斂網(wǎng)格不能保證計(jì)算結(jié)果與問(wèn) 題的實(shí)際

55、行為相匹配：它還依賴于模型其他方面的近似化和理想化程度；通常只在想要得到猜確結(jié)果的區(qū)域細(xì)劃網(wǎng)格；ABAQUS 具有一些先進(jìn)特點(diǎn)如子模型，它可以幫助對(duì)復(fù)雜模擬得到有用的結(jié) 果。3. 殼單元(S)可以模擬有一維尺寸(厚度)遠(yuǎn)小于另外兩維尺寸，且垂直于厚度方向的 應(yīng)力可以忽略的結(jié)構(gòu)。一般殼單元：S4R, S3R, SAX1, SAX2, SAX2T。對(duì)于薄殼和厚殼問(wèn)題的應(yīng)用均 有效，且考慮了有限薄膜應(yīng)變；薄殼單元，STRI3, STRI35, STRI65, S4R5, S8R5, S9R5, SAXA。強(qiáng)化了 基爾霍 夫條件，即：垂直于殼中截面的平面保持垂直于中截面；厚殼單元：S8RS8RT。二階

56、四邊形單元，在小應(yīng)變和載荷使計(jì)算結(jié)果沿殼 的跨度方向上平緩變化的情況下，比普通單元產(chǎn)生的結(jié)果更精確；對(duì)于給定的應(yīng)用，判斷是屬于溥殼還是厚殼問(wèn)題，一般：如果單一材料制 造的各向同性殼體的厚度和跨度之比在 1/20-1/10 之間，認(rèn)為是厚殼問(wèn)題； 如果比值小于1/30.則認(rèn)為是薄殼問(wèn)題：若介于 1/30-1/20 之間，則不能明 確劃分。由于橫向剪切柔度在復(fù)合材料層合殼結(jié)構(gòu)中作用顯著，故比值(厚跨 比)將遠(yuǎn)小于“薄”殼理論中采用的比值。具有高柔韌中間層的復(fù)合材料(“三 明治”復(fù)合材料)有很低的橫向剪切剛度并且?guī)缀蹩偸潜挥脕?lái)模擬“厚”殼；橫向剪切力和剪切應(yīng)變存在于普通殼單元和厚殼單元中。對(duì)于三維單

57、元，提供了可估計(jì)的橫向剪切應(yīng)力。計(jì)算這些應(yīng)力時(shí)忽賂了彎曲和扭轉(zhuǎn)變形的耦合 作用，并假定材料性質(zhì)和彎曲力矩的空間梯度很??；殼單元可以使用每個(gè)單元的局部材料方向，各項(xiàng)異型材料的數(shù)據(jù)，如纖維 增強(qiáng)復(fù)合材料，以及單元輸出變量，如應(yīng)力和應(yīng)變，都按局部材料方向而定義。 在大位移分析中，殼單元上的局部材料軸隨著材料各積分點(diǎn)上的平均運(yùn)動(dòng)而轉(zhuǎn) 動(dòng)；線性、有限薄膜應(yīng)變、四邊形殼單元(S4R)是較完備的而且適合于普通 范圍的應(yīng)用；線性、有限薄膜應(yīng)變、三角形殼單元(S3R)可作為通用的殼單元來(lái)應(yīng)用。 由于在單元內(nèi)部近似為應(yīng)變場(chǎng)，精細(xì)的網(wǎng)格劃分可用于求解彎曲變形和高應(yīng)變 梯度；考慮到在復(fù)合材料層合殼模型中剪切柔度的影響

58、，將采用“厚”殼單元(S4RS3RS8R)四邊形或三角形的二次殼單元，用于一般的小變形薄殼是很有效的。它們 對(duì)剪力自鎖和薄膜鎖死是不敏感的；在接觸模擬中不用選用二階三角形殼單元(STRI55),要采用 9 節(jié)點(diǎn)的四 邊形殼單元(S9R5);對(duì)于僅經(jīng)歷幾何線性行為的非常大的模型，線性、薄殼單元(S4R5) 般 將比通用殼單元花費(fèi)更少；小結(jié)：殼單元的橫截面特性可以由沿厚度方向的數(shù)值積分確定(*SHEI SECTION),或在分析開(kāi)始時(shí)應(yīng)用計(jì)算的橫截面剛度(*SHELL GENERAL SECTION)；*SHELL GENERAL SECTION 是非常有效的，但僅用于線性材料，*SHELL SE

59、CTION可用于線性和非線性材料；數(shù)值積分在沿殼厚度方向的一系列積分點(diǎn)上進(jìn)行。 這些積分點(diǎn)就是單元變 量可以被輸出的位置。最外層的積分點(diǎn)位于殼單元的表面。殼單元法線方向決定了單元的正和負(fù)表面，為了正確地定義接觸和解釋輸 出數(shù)據(jù)，必須知道其對(duì)應(yīng)的是哪個(gè)面。殼法線還定義了施加在單元上正壓力載 荷的方向，并可以在 ABAQUS/Post 中畫(huà)出；殼單元利用材料方向局部化到每個(gè)單元。在大位移分析中，局部材料軸隨 單元而轉(zhuǎn)動(dòng)。ORIENTATION 被用來(lái)定義非默認(rèn)的局部坐標(biāo)系統(tǒng)。單元的變量，如應(yīng)力和應(yīng)變，在局部方向輸出；TRANSFORM 定義節(jié)點(diǎn)的局部坐標(biāo)系，集中載荷和邊界條件被應(yīng)用在局部 坐標(biāo)系中

60、。所用節(jié)點(diǎn)的輸出，如位移，也默認(rèn)為基于局部的坐標(biāo)系；矢量圖可以使模擬結(jié)果可視化，特別是用來(lái)觀瘵結(jié)構(gòu)的運(yùn)動(dòng)和載荷路徑。4. 梁?jiǎn)卧˙）模擬一維尺寸（長(zhǎng)度）遠(yuǎn)大于另外二維尺寸的構(gòu)件，且只有長(zhǎng)度方向上的 應(yīng)力比較顯著。對(duì)于包含接觸的任何模擬，應(yīng)使用一階、剪切變形的梁?jiǎn)卧˙21,B31） 如果結(jié)構(gòu)剛度非常大或者非常柔軟，在幾何非線性模擬中應(yīng)當(dāng)使用雜交梁 單元（B21H, B32H 等）使用歐拉一伯努利（三次）梁?jiǎn)卧˙23,B33）精度很高，可模擬承受分 布載荷作用的梁，例如動(dòng)態(tài)振動(dòng)分析。如果橫向剪切變形也很重要，要使用鐵 糜辛柯（二次型）梁?jiǎn)卧˙22, B32）模擬有開(kāi)薄壁橫截面的結(jié)構(gòu)，應(yīng)當(dāng)使用考慮了