Advanced Webinar - MIDAS Useradmin.midasuser.com/UploadFiles2/webinar/20110825_midas_GTS...Guide Line Sweep Solid Extracts selected Profile followed by the Guide Line, and creates

Bridging Your Innovations to Realities

midasmidas GTS GTS Advanced Webinar Advanced Webinar

Date: Aug 25, 2011

Topic: General Use of midas GTS (Part I)

Presenter: Abid Ali

GTS


GTS

Contents:1. Introduction

2. Geometry modeling

3. Meshing

4. Property

5. Analysis types

MIDAS Information Technology Co., Ltd.

Convenience

Rapidity

Accuracy

ProductivityGTSGTS!!

““GTS is a total, state-of-the-art solution, which has been developed through integrating all the functions, which are required for structural analysis of geotechnical and tunnel

engineering. Its capabilities include stress analysis reflecting

construction stages, seepage analysis and much more …”

About GTS


Introducing Frame Work

4Property

Window

Task Pane

Window

Output Window

Works Tree

Window

Work Window

Table

Window


Main Menu

SelectionToolbarWorkPlaneToolbar

Snap Toolbar

Tabbed Toolbar

View Toolbar

Measure Toolbar

Unit System

Standard Toolbar

Introducing Frame Work


Shading (Default)

Feature Edge Feature Edge with ShadingFree-Face Wireframe

Display Mode (Mesh)

Show Hide / Display Mode


View Toolbar

Dynamic View: move, rotate and zoom the Work Window

Dynamic Zoom: zoom on model by lateral move of mouse

Dynamic Pan: move the view point

Dynamic Rotation: rotate the view point

View Toolbar


SelectUnselect

Object Selection

Selecting Tools

Select / Unselect ToolUnselect All

Selection Filter

Include Intersected

Pick/Window

Circle

Polygon

Poly line

Query Pick

Displayed


Inputting Snap/Direction/Value

Gives convenience by using Geometry, Grid, or Element toolsSnap Tool

Grid

Vertex

End

Middle

Perpendicular

Center

Quadrant

Intersection

Node

Off All Snap


Geometry Modeling


Concept of Geometry Shape

Geometry Modeling Mesh Generation

2D

3D


Curve Edge & Curve connecting 2 Points

Surface Face & Shell

Solid 3D element defined with Volume

Compound Group of listed elements

Types of Geometry Shape

Point Points on 2D or 3D

Explode

Generation


Point


+

+

+ +

+ ++

+

+

+

+

+

+

+

Imprinted PointGenerated Node

in Imprinted Shape

Curve Surface Solid

Points on 2D or 3D,

The Basic Element of all Shapes


Edge: Line or Curve connecting 2 Points

Wire: Group of Continuous Edges

Curve


Edges(Edge or Curve)

Wire(Group of Edge)

FaceSolid


Surface Modeling

Virtual Grid

(M X N)

Elevation

Grid Patch

Co-planar Curves

Plane Patch

Vertex Cloud

Vertex Patch

NURBS Patch

Arbitrary Curves

2~4 Curves

Coons Patch


Box

Sphere

Cylinder

Torus

Cone

Wedge

Creating Point • Line • Surface • Solid

Geometry > Primitive Feature > Cylinder, Cone, Box, Wedge, Sphere, Torus

Solid


Solid Modeling

Trim

Divide

Boolean Operation

A

B

Fuse(A B)

Cut(A - B)

Common(A B)

+

Divide by Multiple Surfaces(Excavation Stages)



Sub Shape Lower Ranked Shapes building up the Independent Shape

Shape

Sub Point

Sub Edge

Sub Wire

Sub Face

Sub Shell

8

12

6

6

1

1 Solid

Empty



Co-Shape Same shapes existing on the same location.

2 Faces Co-EdgeCheck Duplicate

Check Duplicate

Co-Face2 Solids


Merge

2 Edges 1 Edge

Advanced Geometry Work (Curve, Surface)

Merges 2 or more edges

Geometry > Curve > Merge...

Merge Edge

Sub Point Sub Point

Sub Point Not Sub Point

Sub Point Sub Point


Extend

Extended Edge

Base Entity

Entity to Extend


Extends an edge until it meets the other

Geometry > Curve > Extend 2D...

Extend 2D


Make Wire

1 Wire

3 Sub Edges

3 Edges

4 Sub Points


Groups Edges to a Wire.

Geometry > Curve > Make Wire...

Make Wire


2 Faces 1 Shell

2 Sub Faces

Sew Surface


Groups 2 or more Faces to a Shell

Geometry > Surface > Sew...

Sew


Trim Solid

Reference Point

Trim Surface

Advanced Geometry Work (Solid)

Divides Solid by Surface,

and Removes the divided Solid of Reference Point.

Geometry > Solid > Trim...

Trim Solid


1 Solid

(Solid to Divide)

Tool Surface

2 Solids


Divides Solid by Surface

Geometry > Solid > Divide...,

Divide Solid

Divide


2 Solid

Tool Object

Master Object

Embed


Embeds Solid into another.

Geometry > Solid > Embed...

Embed


Explode

disassembles shape into lower shapesExplode

FacesSolid

Explode

Geometry > Explode...


Various Geometry Tools

SolidWire

Z-Direction

Extrude

Extracts a shape in a direction

Geometry > Generator Feature > Extrude...

Extrude


Profile

Revolution Axis

(Z-Direction)

Revolve Solid

Revolve

Rotates the Revolution Profile to create Solid, Shell or Face

Geometry > Generator Feature > Revolve...

Revolve



2 Profile(Wire) Solid

Loft

Creates Shell or Solid by connecting the given series of Profiles.

Geometry > Generator Feature > Loft...

Loft



Sweep

Profile

Guide Line

Sweep Solid

Extracts selected Profile followed by the Guide Line,

and creates Face, Shell or SolidGeometry > Generator Feature > Sweep...

Sweep



ModificationModification

Trim 2 Surfaces

Offset

Local PrismProfiles

Defined Depth

Through-all

Draft

Side View

Chamfer


Modifier Features


Face

Y-Direction

Translate

(Uniform Copy)

Translates or Duplicates Elements in a Direction

Geometry > Transform > Translate...

Translate

Uniform Copy



Face

90°

Rotate Axis

Rotate

Rotates a Shape by the Rotate Axis

Geometry > Transform > Rotate...

Rotate

Rotate Move



SolidMirror Plane

(Y-Z Plane)

Mirror Shape

Target Object

Mirror

Translates Shape by the Mirror Plane

Geometry > Transform > Mirror...

Mirror



Face

Scale Center Point

Scale

Changes the size of the selected shape

Geometry > Transform > Scale...

Scale



Node Connect

Not Co-Face

Co-Face

Co-Face

Not Node Connect

Node Connect

checks duplicated shapes.

Geometry > Check > Duplicate...

Check Duplicate

Check Duplicate


TGM (Terrain Geometry Maker)

Specialized Module for Real Terrain Geometry

DXF Data TGMTGMTGMTGM

GTSGTSGTSGTSDigital MapDigital MapDigital MapDigital Map


Data Exchange

Import (Geometry)

Export (Geometry)

• STEP, IGES, BREP, Neutral Format File

Standards for Data ExchangeStandards for Data Exchange•• STEPSTEP ((STSTandardandard for the for the EExchange of xchange of PProduct Model Data)roduct Model Data)

•• IGESIGES ((IInitial nitial GGraphics raphics EExchange xchange SSpecification)pecification)

•• STLSTL ((STSTereoereo LLithography) ithography) –– De facto standard for RPDe facto standard for RP

Standards for Data ExchangeStandards for Data Exchange•• STEPSTEP ((STSTandardandard for the for the EExchange of xchange of PProduct Model Data)roduct Model Data)

•• IGESIGES ((IInitial nitial GGraphics raphics EExchange xchange SSpecification)pecification)

•• STLSTL ((STSTereoereo LLithography) ithography) –– De facto standard for RPDe facto standard for RP

IGES Geometry

Generated Mesh


GTSGTS

FrameSolid Wizard automatically generates

Solid Geometry & Mesh by importing Frame Model

(*.MCS) from Civil and Gen.

MCS Format

Analysis Model

(3D Prism Mesh)

Generated Solid

Geometry

Frame Solid Wizard from CIVILCIVIL//GenGen


Meshing


Mesh Generation

Auto Map Protrude Manipulation

• Solid

• Surface

• Edge

• Planar Area

• 4-Curve Area

• 2D 3D

• Quadrilateral

• Combined

• Triangle

• Solid

• Surface

• k-Curve Area

• k-Face Volume

• 4-Node Area

…

• Extrude

• Revolve

• Project

• Fill

• Sweep

• Geometry

• Element

• Node

• Create

• Extract

• Connection

• Change Para.

• Smooth

• Divide

• Check

• Quality

• Merge

• Transform

…

ObjectObject

TypeType


Automatic Surface Meshing

RegularityRegularity

UniformityUniformity

Boundary Boundary SensitiveSensitive

Orientation Orientation InsensitiveInsensitive

Sizing ControlSizing Control

(< 1/2)(< 1/2)

Internal Internal Curve/PointCurve/Point

Loop Loop MesherMesher ✓✓ ✓✓ ✓✓ ✓✓

Delaunay Delaunay MesherMesher ✓✓ ✓✓ ✓✓ ✓✓

Grid Grid MesherMesher ✓✓ ✓✓ ✓✓

Loop MesherLoop Mesher Grid MesherGrid Mesher Delaunay MesherDelaunay Mesher

ImpulsiveImpulsivePointPoint


Automatic Solid Meshing

• GTS’ Tetra Mesher auto-generates tetrahedral solid mesh with variable sizes in

smooth transition. (200,000 Tetra’s/min)

• GTS’ Tetra Mesher is capable of including holes, curves and points that are present

in/on solids.

Smooth Transition

Smooth

Transition


Mapped Mesh Generation

• GTS’ Map Mesher generates structured (regular & orthogonal) mesh both in surfaces

and solids.

k-faced Volume

(Simply-closed)

k-sided Area (Simply-connected)

Abutment

(Solid Mesh)Tunnel - Junction

(Solid Mesh)

Tunnel Lining

(Surface Mesh)


Size Control

• GTS provides various size control methods, uniform size, division, linear grading (size

& ratio and symmetry option) and refinement option.

Linear & Symmetric Seeding

Fine CoarseCoarse

DivisionUniform

Size

Lin

ea

r Gra

din

g

Fine Mesh

Coarse Mesh

Smooth Transition

NormalRefinement (50%) Refinement (120%)


Mesh Size Control

Along Edge Mesh Size Control for Edge or Sub-Edge

Along Edge

Select Edges Size Control

Mesh > Size Control > Along Edge...


Mesh Size Control

Custom Size Along Edge

Seeding on the Selected Edge by Inputting the Points to be Seeded.

Input Points

Custom Size

Along Edge

Table InputSelect Edge

Mesh > Size Control > Custom Size Along Edge...


Mesh Size Control

Match Edge Seed duplicates the seeding information to the other edge

Generated Seeds

Source Edge

Target Edge

Match Edge Seed

Mesh > Size Control > Match Edge Seed...


Auto Mesh vs Map Mesh Generation

Map Mesh K-Edge AreaCreates 2D Mapped Mesh on

the selected Area

Map Mesh

Mapped MeshCurve

Mesh > Map Mesh > K-Edge Area...


Extrude

Fill

Protrude Mesh

2D Mesh Extrude Mesh(3D)

Edges Fill Mesh(2D)


Revolve

Sweep

2D Mesh Revolve Mesh(3D)

2D Mesh & Guide

Line

Sweep Mesh(3D)

Protrude Mesh


Project

Offset

2D Mesh Project Mesh(3D)

2D Mesh

Offset Mesh(3D)

Protrude Mesh


Various Meshing Tools

Merge Mesh Set

Groups elements in sets.

Mesh Set 1

Mesh Set 2 Mesh Set 3

Mesh Set 1

Mesh Set 2 Mesh Set 3

Select

2 Mesh Set

Merge Mesh SetContext Menu

3 Mesh Set

Drag

&

Drop


Mesh > Node > Merge...


Merge Node Merges 2 or more nodes into one.

[Selected Node]

[2 Nodes]

Node to Move

Node to Retain

Merge Node

Merge Node


Mesh > Element > Extract Element...


Extract Element Extracts elements from higher dimension shape.

[From Shape]

2D Element3D Element

2D ElementSelect Nodes3D Element

[From Node]

Hide Mesh &

Select Sub Faces


Mesh > Transform > Mirror...


Mirror

Mirror Mesh

Original MeshMirror Preview

Translates mesh by the Mirror Plane



Scale Changes the size of the selected element.

Scale PreviewOriginal Mesh

Mesh > Transform > Scale...


Create SectionPolyline, Line, Import DXF

etc.

Create Solid Extrude, Loft, Sweep, Etc.

Modify Solid Boolean Operation, Embed, Divide Etc.

Size ControlAlong Edge, Match Edge Seed, Custom

Edge

Generate Mesh Auto Mesh Solid, Map Mesh Solid, K-Edge area Etc

Process of GTS Modeling

Geometry Modeling

ToolsModeling Process


Transform

Extract 3D Mesh

Generate 2D Mesh

Create Section Polyline, Line, Import DXF Etc.

Auto Mesh Planar Area, K-Edge Area, Auto Mesh Face

Etc.

Extrude, Fill, Sweep, Project, Offset, Revolve Etc.

Mirror, Translate, Rotate Etc.

Mesh Modeling

Process of GTS Modeling

ToolsModeling Process


Check Mesh

Check Mesh 2D Checks if the meshes are well generated.

Checks if the nodes are well connected.

NGOK

Check Mesh

Mesh > Check Mesh...


Check Mesh

Check Mesh 3D Checks if the meshes are well generated.

Checks if the nodes are well connected.

NG

Check Mesh

OK

Mesh > Check Mesh...


• Soil Elements• Solid Element

• Plane Strain element

• Axisymmetric Element

• Structural Elements• Truss Element

• Embedded Truss Element

• Beam Element

• Plate Element

• Plane Stress Element

• Application Elements• Interface Elements

• Plate interface elements

• Pile element

• Pile tip bearing element

• Geogrid element

• Elastic link

• Rigid Link

• Spring

• Matrix spring

Element Type Provided by GTS

Line TypeTruss / Embedded Truss

Beam

Tension Only (Hook), Compression

Only (Gap)

Plot Only (Dummy for Modeling)

Geogrid(1D)

Plane TypePlate (Shotcrete, Lining)

Plane Stress

Plane Strain

Axisymmetry

Geogrid(2D)

Plot Only (Dummy for Modeling)

Solid TypeSolid

OthersPoint Spring, Matrix Spring, Interface

Elastic Link, Rigid Link

Line-to-solid interface for pile

•Sectional properties


Attributes


Material Models Provided by GTS

Structural Constitutive models.

•Non linear Elastic model for truss and embedded truss

•Non linear elastic model for elastic links

•Geo-membrane models

•Interface models

•Plate Interface model

Geotechnical constitutive models

•Linear elastic models

•Transversely isotopic model

•Tresca model

•Von Mises model

•Mohr-Coulomb model

•Duncan-Chang Model

•Strain softening model

•Modified cam clay model

•Jointed rock model

•Modified Mohr Columb

•Hoek Brown model

•Jardine model

•D-min model

Seepage constitutive model

•Conductive function

•Volumetric water contents function


Analysis Capabilities


GTS

Thank You!Thank You!Thank You!For more information, please visit us at

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Documents

Advanced Webinar - MIDAS Useradmin.midasuser.com/UploadFiles2/webinar/20110825_midas_GTS...Guide Line Sweep Solid Extracts selected Profile followed by the Guide Line, and creates