introduction to simulation · simulia abaqus proven solution for advanced finite element analysis...

Your Source for Engineering Design Solutions

Introduction to

SimulationFinite Element Analysis


Road Map

What is FEA?

Simulation Example in SimXpress

Optimizing that example with Simulation Add in

Look into higher levels of Simulation


What is FEA?


Example: Brick road from home to mailbox – measure the

distance of a curved path using yard stick

Curved path is approximated by straight

segments

Measure using a yard stick


FEA for structural analysis

Example of a fitting

Split the fitting into small

tetrahedral pieces and

approximate the deformation

on each piece


What am I trying to Solve

Where are my weak points?

Is this material strong enough?

Is this thing too beefy?

Is this joint going to hold up?

What type of study should I use?

Linear Static Study

Before You Begin


Static

Loads applied uniformly and constantly

No impact or changing loads

Mass

Pressure

No Rigid Body Motion


Linear

Are all loads in the elastic range

Will my model return to its original shape

after loading


Small Deformation

No large displacement problems

Materials that will not break if bent too much

Geometry that causes large displacement


Linear Elastic Study

Static

No motion

Constant Loading

Linear

Are all loads in the elastic range

Model will return to its original shape after

loading

Small Deformation


What to do with the numbers

See how much the part displaces under loading

Failure Criteria to see if material is yielding

See which areas of the model carry load for material optimization.


What is FEA?

Numerical Solving technique

Breaks part up into small chucks (elements)

Solves for each small chunks

Compare Values to material properties

Determine material failure


Road Map

What is FEA?





Validation Example

Will the wrench fail? Where is it the weakest?


Example Using SimXpress

All Licenses of SWX

Parts

Fixed Faces

Force and Pressure

No Mesh Control

Post Processing

Stress / Displacement / Factor of Safety


Road Map

What is FEA?





Linear Static Study Included in Solidworks Premium / SolidWorks Simulation Standard

Assemblies

Connectors

Full Fixture Control

Specify which degrees of freedom are removed

Add stiffness to boundary conditions

More Loads

Temperature / Prescribed Displacement / Gravity / Torque

Full Mesh Control

3 different meshers

Mesh refinement ability (manual and Automatic)

Vast Post Processing Options

Multi Variable Design Study


Mesh Controls

Control Solve Time

Control Accuracy


Mesh Controls


4 Studies at Different Mesh Densities


Proving Convergence

DOF StressPercent

Change

61476 225.07

176736 225.412 0.15

187995 225.484 0.03

242616 225.511 0.01200

205

210

215

220

225

230

235

240

245

250

61476 176736 187995 242616

Str

ess

(M

Pa)

Degrees of Freedom

Stress Convergance


Verification

Nodal Solution

225.511 MPa

Elemental Solution

223.956 MPa


Design Insight

Optimize model design

Visualize load transfer


Add the Cut out


Multi-Variable Design Study

Dimensions

Simulation Loads

Global Variables

Materials


Results

466.42g 458.35g


Road Map

What is FEA?





SOLIDWORKS Simulation ProductsSOLIDWORKS Simulation

PremiumSOLIDWORKS Simulation

Professional

Topology

OptimizationBuckling Thermal

Event-based

Motion

Pressure

VesselDrop Test

Frequency

Time Based

Motion CompositesSubmodeling

Trend Tracker

SOLIDWORKS Simulation

Standard

Fatigue

Static for

Assemblies2D

Simplification

Material

Web Portal*

* Customer under subscription

Edge Weld

Connectors

Load Case

Manager

Nonlinear Time History Harmonic

Random

Vibration

Shock Response

Spectra

Flow Simulation

Electronic

Cooling

HVAC Module

Plastics SIMULIA Abaqus

Standard

Explicit

../Avis/CW_O - Optimization.wmv

../Avis/Linear_buckling_Damper.avi

../Avis/Event_based_tutorial.avi

../Avis/PV_Behaelter-Studie 1-Stress-Spannung1.avi

../Avis/ShockTest_4G.wmv


Static Analysis Dynamic Analysis Fatigue Analysis Thermal Analysis Fluid Flow Analysis Injection Molding Analysis Design Optimization

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Hawk Ridge Systems Analysis Products


Kinematic Motion – Simulation Standard


Topology-Simulation Professional

172.83g


Drop Test - Simulation Professional


Nonlinear – Simulation Premium

What happens post-yield?

Can I model rubber?

What if my structure deforms a lot?

How do I represent complicated part

interactions?


Nonlinear – Simulation Premium3 Types of Nonlinearity

• Geometric Nonlinearity

Large Deformation Analysis

• Material Nonlinearity

Post-Yield Behavior (Plasticity)

Hyper-Elastic Materials

Nonlinear Elastic Materials

• Contact Nonlinearity

When the contact region

changes during the analysis


SIMULIA Abaqus

Proven solution for advanced finite element analysis

Abaqus/Standard solver is ideal for nonlinear analysis

Abaqus/Explicit solver is well-suited for high-speed dynamic events

Advanced material models

Sophisticated meshing

Comprehensive contact modeling

“Extended Packaging” enhances Abaqus with:

SIMULIA fe-safe

SIMULIA Isight

SIMULIA Tosca


Geometric Nonlinearity – Large Deformations


Contact Nonlinearity – General Contact


Damage Modeling


Consulting Services


Thanks for Coming!Finite Element Analysis

introduction to simulation · simulia abaqus proven solution for advanced finite element analysis...

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