MSC Studentenwettbewerb. Wintersemester 2012/13. Marc/Mentat 2012

Transcription

1 MSC Studentenwettewer Wintersemester 2012/13 Mrc/Mentt 2012

2 Aufge Wie groß ist die mximle Verschieung in Y Richtung im nichtlineren Fll? Required File: tip_lod.mud.

3 2 TUTORIAL

4 Prolem Description In this exercise, cntilever em is sujected to sttic lod. The em is initilly nlyzed using smll deformtion theory. However, fter reviewing the results, it ecomes pprent tht smll deformtion theory is not pproprite for this prolem. Susequently, lrge deformtion nlysis is performed (Dt in next pge) Section A-A

5 Prolem Description Section A-A Length, L in 2.54 m 1.0 in 25.4 mm 2.0 in 50.8 mm Young s Modulus 30.0 x 10 6 l/in GP Yield Stress l/in MP Poisson s Rtio P 6000 l N

6 Prolem Description (Cont.) The model is mde using eight 2D plne stress, ssumed strin, reduced integrtion (type 114) elements. The elements re uniformly spced long the length of the em (i.e. mesh, eight elements wide nd one element deep). The ssumed strin, reduced integrtion element is designed specificlly for in-plne ending nd is well suited for this prolem. Next consider the plstic properties nd deformtion nd see how the result chnges.

7 Suggested Exercise Steps: 1. Add Plstic Property Tle is Yield Stress nd 30E6 is Young Modulus, Use eq_plstic_strin tle Use 10% slope of the Elstic rnge for plstic region. 2. Add Plstic Property to the Mteril 3. Sudivide the Elements into Smller Meshes 4 x Adjust the Boundry Conditions, Constrin ll the nodes on left edge in X nd Y direction 5. Adjust the Nonliner jo, Request the following results: Glol Plstic Strin, Glol Stress nd Totl Strin 6. Run the Anlysis 7. View results y plotting the Y Displcement 8. View results y plotting the Totl Plstic Strin 9. View results y plotting the Glol Plstic Strin

8 Step 1. Open Model Open Model. Click File: Open. Browse nd Select tip_lod.mud in working directory c. Click Open c

9 Step 2. Add Plstic Property Tle h Add Tle for Yield Stress. Click Tles&Coord. Syst.. Click New 1 Independent Vrile. c. Enter Nme: YieldStress_Tle d. Click on Type e. Select eq_plstic_strin f. Add Dt Points g. In Dilog Enter E5 h. Click Close (65000 is Yield Stress nd 30E6 is Young Modulus, considering plstic rnge slope 10% slope of Elstic rnge so nother point on the curve cn e clculted s follows for the tle 0.1*30E6*0.5+65E3 = 1.565E6) c d f e g

10 Step 3. Add Plstic Property to the Mteril. Click on Mteril Properties. Click on Show Menu c. Click on Structurl d. Click on Plsticity e. Enter Yield Stress: 1 f. Click on Tle g. Click on YieldStress_Tle h. Click Ok nd ll the su forms. c g e h f d

11 Step 4. Sudivide the Mesh Sudivide the Elements into Smller Meshes 4 x 16. Click on Geometry & Mesh. Click on Sudivide c. Enter Divisions: 2 & 4 d. Click on Elements e. Select All Elements d c e

12 Step 5. Adjust the Boundry Conditions Constrin ll the nodes on left edge in X nd Y direction c. Click Boundry Conditions. Click Edit c. Click Fixed d. Click Ok e. Click Add e h d f. Select the Left region g. Click End List h. Check Nodes to e 5 (if not Click on Geometry & Mesh Sweep All to remove the duplicte Nodes nd Elements) f g

13 Step 6. Adjust the Nonliner Jo. Select Jos T. Click on Show Menu c. Click on Properties d. Click Jo Results c d

14 Step 6. Adjust the Nonliner Jo (Cont.) e. In Aville Element Tensors, click Glol Plstic Strin, Glol Stress nd Totl Strin f. Click OK e f

15 Step 7. Run the Anlysis. In Jos Menu, click Run. Click Sumit c. When the Sttus indictes Complete, click on Open Post File (Result Menu) c

16 Step 8. Plot Deformtion in Y Direction Plot liner nlysis results:. Click Results. Click Model Plot c f c. In Deformed Shpe Set Style: Deformed & Originl. d. In Sclr Plot set Style to Contour Bnds. e d g e. Click Sclr. f. Select Displcement Y. i g. Click OK. h. Click Ply. i. Click FILL. h (Result plot is shown in next slide)

17 Step 8. Plot Deformtion in Y Direction (Cont.)?

18 Step 9. Plot Totl Strin. In Sclr Plot click Sclr. Click Equivlent of Totl Strin c. Click Ok c

19 Step 9. Plot Totl Strin (Cont.)

20 Step 10. Plot Glol Plstic Strin. In Sclr Plot click Sclr. Click Equivlent of Glol Plstic Strin Lyer 1 c. Click Ok c

21 Step 10. Plot Glol Plstic Strin (Cont.)

22 Die Lösung itte is zum 31. März 2013 n university.de@mscsoftwre.com 21