• Author / Uploaded
• Shashank Babu

• Categories
• Extrusión
• Método de elementos finitos
• Geometría
• Mecánica
• Ingeniería mecánica

Citation preview

GTS NX Basic Training

Integrated Solver Optimized for the next generation 64-bit platform

Finite Element Solutions for Geotechnical Engineering

Geometrical Modeling in midas GTS NX

Integrated Solver Optimized for the next generation 64-bit platform

Finite Element Solutions for Geotechnical Engineering

GTS NX

Objectives

 Element definition

 Geometry Commands  Meshing Commands

3

Training Course

GTS NX

4

Training Course

GTS NX

5

Training Course

GTS NX

6

Training Course

GTS NX

7

Training Course

GTS NX

8

Training Course

GTS NX

9

Training Course

GTS NX

10

Training Course

GTS NX

11

Training Course

GTS NX

12

Training Course

Integrated Solver Optimized for the next generation 64-bit platform

Finite Element Solutions for Geotechnical Engineering

Training Course

GTS NX

Surface and Solid Point and Curve

Divide Boolean

Protude

Transform

Remove

Sub Shape

Tools

Views Selection Filter Work Tree

Output Window

Properties

Units 14

Training Course

GTS NX

drawing methods (button)

selected wait for selection

value input coordinate/value input

preview 15

Training Course

GTS NX

16

Training Course

GTS NX

select/unselect

selection method

selection filter

17

Training Course

GTS NX

18

Training Course

GTS NX Dividing Tools A Selected Surface divides the selected solids. Selected Tool Surface Select a Tool Surface (Datum Plane, Shell, Face), which will divide the solids. If the Tool Surface consists of multiple Faces, user must combine them together and select here as a single Shell.3-Pt Plane 3-Pt Plane defines an infinite plane, which will divide the selected solids. The coordinates of the 3 points may be specified using Snap. Divide Touching Faces of Neighbors When a number of solids exist in a compound and only selective solids need to be divided, the neighboring solids to the selected solids will be divided at the corresponding face as well. This is intended to ensure the connectivity of mesh at thecorresponding faces. Delete Original Shape(s) This option deletes Source Shape leaving the shapes subsequent to a division operation. Delete Tool Shape(s) This option deletes Tool Surface leaving the shapes subsequent to a division operation.

19

Training Course

GTS NX Select Master Object Select an object Solid. Here, the Selection Filter is fixed to Shape, and only Solid can be selected. Select Tool Object Select a solid, which will become embedded into the object solid. Here, the Selection Filter is fixed to Shape, and only Solid can be selected. Delete Original Shape(s) Delete the Original Shapes of Master Object and leave only the shape subsequent to an Embed operation.

20

Training Course

GTS NX

21

Training Course

GTS NX

22

Training Course

GTS NX

23

Meshing in midas GTS NX

Integrated Solver Optimized for the next generation 64-bit platform

Finite Element Solutions for Geotechnical Engineering

Training Course

GTS NX

Training Course

GTS NX

Training Course

GTS NX

Training Course

GTS NX

Training Course

GTS NX

Training Course

GTS NX

Training Course

GTS NX

Training Course

GTS NX

Integrated Solver Optimized for the next generation 64-bit platform

Finite Element Solutions for Geotechnical Engineering

Training Course

GTS NX

Training Course

GTS NX

Training Course 4

Geometry > Divide > Solid Divide the solid

GTS NX 3. Delete the top half of the box by selecting on the screen and pressing DELETE

1. Select box as target solid 2. Select grid face as tool surface

5 Geometry > Protrude > Extrude

Create 2 solids from existing profiles Selection filter ‘’FACE’’

Training Course

GTS NX

Training Course 8

GTS NX

Extrude a new edge to further shape of the tunnel exit

Geometry > Protrude > Extrude (Profile: 3 top Edges of Left Bottom) Filter: EDGE

9

Solid divided in 2 halves

Geometry > Divide > Solid

Top and bottom halves

Training Course

GTS NX

Training Course 11

GTS NX

Extrude the 2D tunnel profiles to create the tunnel tubes

Geometry > Protrude > Extrude (Profile: 4 tunnel surfaces) Filter: FACE

Target Objects: 4 tunnel surfaces from works tree

Y - Axis

12

Divide the 2 exits and ground by the 4 tunnel tubes

Geometry > Divide > Solid (Target Solids: 1 ground, 2 Exits) Tools: 42 tunnel tubes surfaces Select the 4 tunnel solid extrusions to get all the 42 surfaces

Training Course

GTS NX

13

14

Move work plane to create 2D rectangle

Geometry > Move Work Plane > Three Point Reference

Point 1

- Select 3 corner points on the back face of the ground

Point 2

Point 3

Training Course 15

Geometry > Point & Curve > Rectangle

16

Y - Axis

Method: Copy Distance: -10 Times: 5

GTS NX

Training Course 17

Geometry > Divide > Solid

Target Solids : 4 tunnel tube solids Tools: 6 rectangle surfaces Divide touching faces: ground

GTS NX

Training Course 18

19

GTS NX

Tools > Geometry > Random Color

Mesh > Size Control > Edge > Interval Length

Mesh > Size Control > Edge > Linear Grading

GTS NX 20

Mesh > Material > Create > Isotropic

Material 1: Concrete -Model Type : Elastic Material 2: Ground -Model Type : Mohr - Coulomb

GTS NX 21

Mesh > Property > Create > 3D

Name: Concrete -Material : Concrete Name: Ground -Material : Ground

Training Course 22

Mesh > Generate > 3D > Auto-Solid

GTS NX

Training Course 23

Mesh > Element > Parameters > 3D

Change the material property for the 2 exit structures - Select both mesh sets from the works tree

GTS NX

GTS NX 24

Works Tree > Model > Properties

Change the name of the mesh sets for the 2 exits and the ground.

Double click on mesh set and in property window assign names

Training Course 25

Static / Slope Analysis > Load > Self Weight

Define Gravity in the Negative Z direction

GTS NX

Training Course 26

Static / Slope Analysis > Boundary > Constraint > Auto

Apply Auto boundary conditions

GTS NX

Training Course 27

Analysis > Analysis Case > General

Name: Linear Static Solution Type : Linear Static - Press >> to activate all sets - Click Apply

GTS NX

Training Course 28

GTS NX

Analysis > Analysis Case > General

Name: Linear Static After Excavation Solution Type : Linear Static - Drag and drop the mesh sets to only have the ground and tunnel exits active

Press Output Control -Activate Strain Results

Training Course 29

Analysis > Analysis > Perform

Select both Cases and click OK

GTS NX

Training Course 30

Works Tree > Results

Click on Linear Static > Displacements > TX Translation - This activates movements in the X direction

GTS NX

Training Course 31

Works Tree > Results

Click on Linear Static > Solid Stresses> S – Principal A -This activates the major principal stresses

GTS NX

Training Course 32

Works Tree > Results

Click on Linear Static After Excavation > Solid Strains > E – Max Shear -This activates the maximum shear strains

GTS NX

Training Course

GTS NX

Thank you

58