tosca structure.nonlinear: optimization for structures ... · tosca structure.nonlinear:...

Tosca Structure.nonlinear:

Optimization for Structures with Nonlinearity

Tosca 2019

Course objectives

Upon completion of this course you will be able to perform topology, shape and sizing

optimization considering

Contact

Nonlinear materials

Nonlinear geometries

Targeted audience

Simulation Analysts, Tosca Structure users

Prerequisites

Basic knowledge of Tosca Structure

About this Course

1 day

Day 1

Lesson 1: Tosca Structure Overview

Lesson 2: Topology Optimization: Overview and Special Features

Lesson 3: Contact in Topology Optimization

Workshop 1: Topology optimization of a structure with nonlinear contact

Lesson 4: Geometric and Material Nonlinearities

Lesson 5: Shape Optimization: Overview and Special Features

Lesson 6: Shape Optimization for Structures with Nonlinearities

Workshop 2: Shape optimization of a contact surface

Lesson 7: Sizing Optimization for Structures with Nonlinearities

Workshop 3: Sizing Optimization of a Contact Surface

SIMULIA is the Dassault Systèmes brand for Realistic Simulation solutions

Portfolio of established, best-in-class products

Abaqus, Isight, Tosca, fe-safe, Simpack

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* Included in extended licensing pool

SIMULIA’s Power of the Portfolio

Safety Factors Creep-Fatigue Interaction

Weld Fatigue

• Durability Simulation

• Low Cycle and High Cycle Fatigue

• Weld, High Temperature, Non-metallics fe-safe

Material Calibration Workflow Automation

Design Exploration Isight

• Process Integration

• Design Optimization

• Parametric Optimization

• Six Sigma and Design of Experiments

Realistic Human Simulation High Speed Crash & Impact

Noise & Vibration Abaqus

• Routine and Advanced Simulation

• Linear and Nonlinear, Static and Dynamic

• Thermal, Electrical, Acoustics

• Extended Physics through Co-simulation

• Model Preparation and Visualization

Tosca • Non-Parametric Optimization

• Structural and Fluid Flow Optimization

• Topology, Sizing, Shape, Bead Optimization

Conceptual/Detailed Design

Weight, Stiffness, Stress

Pressure Loss Reduction

Complete System Analyses (Quasi-)Static, Dynamics, NVH, Flex Bodies, Advanced Contact

• 3D Multibody Dynamics Simulation

• Mechanical or Mechatronic Systems

• Detailed Transient Simulation (Offline and Realtime) Simpack

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Legal Notices

The software described in this documentation is available only under license from Dassault

Systèmes or its subsidiaries and may be used or reproduced only in accordance with the terms of

such license.

This documentation and the software described in this documentation are subject to change

without prior notice.

Dassault Systèmes and its subsidiaries shall not be responsible for the consequences of any

errors or omissions that may appear in this documentation.

No part of this documentation may be reproduced or distributed in any form without prior written

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© Dassault Systèmes, 2018

Printed in the United States of America.

Abaqus, the 3DS logo, and SIMULIA are trademarks or registered trademarks of Dassault

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Other company, product, and service names may be trademarks or service marks of their

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Revision Status

Lesson 1 12/18 Updated for Tosca Structure 2019






Lesson 7 12/18 New for Tosca Structure 2019

Workshop 1 12/18 Updated for Tosca Structure 2019

Workshop 2 12/18 Updated for Tosca Structure 2019

Workshop 3 12/18 New for Tosca Structure 2019

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Lesson content:

Optimization

Tosca Structure

Structural Optimization including Nonlinearities

Optimization Workflow

Lesson 1: Tosca Structure Overview

45 minutes

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Lesson content:

Topology Optimization

Postprocessing

Example: Topology Optimization of a Control Arm

Theory of Topology Optimization

Controller-based Optimization

Sensitivity-based Optimization

Design Responses

Settings and Options

Optimization Control

Lesson 2: Topology Optimization: Overview and Special Features

1.5 hours

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Lesson content:

T-profile

Plate with a Hole

Bearing Cap

Jet Engine Front Mount Beam

Contact Pressure in Topology Optimization

Tips and Tricks

Workshop 1

Lesson 3: Contact in Topology Optimization

1 hour

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In this workshop you will become familiar with topology optimization of a structure containing

nonlinear contact.

In this exercise you will:

1. Set up and execute a topology optimization of a beam structure with nonlinear frictional

contact

2. Modify the contact area

3. Stabilize the solver convergence behavior when changing the material properties by the

optimization program. Use both solver and Tosca Structure stabilization methods

Workshop 1: Topology Optimization of a Structure with Nonlinear Contact

30 minutes

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Lesson content:

Geometric Nonlinearities in Topology Optimization

Supported Nonlinear Material Models in Abaqus

Supported Nonlinear Material Models in ANSYS

Beam: Difference between Linear and Nonlinear Material

L-shaped Profile: Difference between Linear and Nonlinear Material

Tire: Example using Hyperelastic Material Models

Convergence Stabilization

Soft Delete

Lesson 4: Geometric and Material Nonlinearities

1 hour

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Lesson content:

Shape Optimization

Tosca Structure.shape

Functionality

Objective

Restrictions on Design Variables

Settings and Options

Lesson 5: Shape Optimization: Overview and Special Features

45 minutes

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Lesson content:

Structural Optimization including Nonlinearities

Nonlinear Constitutive Material Laws

Plastic Strain Minimization in Pure Mechanical Applications

Plastic Strain Minimization in Thermo-mechanical Applications

Shape Optimization of Contact Areas

Chassis Arm: Geometric Nonlinearities

Workshop 2

1.5 hours

Lesson 6: Shape Optimization for Structures with Nonlinearities

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In this workshop you will become familiar with shape optimization of a structure containing

nonlinear contact.


1. Set up and execute a shape optimization of a beam structure with nonlinear frictional contact.

2. Modify the contact area to reduce the contact pressure peaks

Workshop 2: Shape Optimization of a Contact Surface

30 minutes

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Lesson content:

Overview of Sizing Optimization

Sizing Optimization including Nonlinearities

Examples

Geometric Nonlinearities in Sizing Optimization

Material Nonlinearities in Sizing Optimization

Contact in Sizing Optimization

Comparison Linear – Nonlinear Optimization

Multi-constraint sizing optimization

Settings

Workshop 3

1 hr

Lesson 7: Sizing Optimization for Structures with Nonlinearities

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In this workshop you will become familiar with sizing optimization of a structure containing

nonlinear geometry and contact formulation.


1. Set up and execute a sizing optimization of a model

including nonlinear geometry and contact

2. Modify the design area to reduce compliance

3. Stabilize the solver convergence behavior using

both solver and Tosca Structure stabilization methods

Workshop 3: Sizing Optimization of a Contact Surface

30 minutes

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