PRODUCTION TECHNOLOGY AND MECHANICS OF POLYMERIC … · I. (Virtual) processing Forming and draping Fiber placement and winding Pultrusion and infusion processes … II. Performance

PRODUCTION TECHNOLOGY AND

MECHANICS OF POLYMERIC MATERIALSLIGHTWEIGHT MATERIALS FOR STRUCTURAL APPLICATIONS

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▪ Organization

▪ Group profile

▪ Research facilities

▪ Selected project(s)

▪ Collaboration

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CONTENTSGROUP INTRODUCTION

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UT ORGANISATIONFACULTIES

Engineering

Technology

UNIVERSITY OF TWENTE

Behavioural,

Management & Social

Sciences

Geo-information &

Earth Observation

Science

& Technology

Electrical Eng.,

Mathematics

& Computer Science

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UT ORGANISATIONFACULTY OF ENGINEERING TECHNOLOGY

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UT ORGANISATIONDEPARTMENTS

UNIVERSITY OF TWENTE

Engineering Technology

MS3: Mechanics of Solids, Surfaces and Systems

Energy & FlowDesign

EngineeringCivil

EngineeringBiomedical Engineering

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UT ORGANISATIONMS3 RESEARCH CHAIRS

Engineering Technology

MS3: Mechanics of Solids, Surfaces and Systems

Nonlinear Solid Mechanics

Laser Processing

Tribology Based Maintenance

Production Technology

Elastomer Technology

Structural Dynamics, Acoustics & Control

Mechanics of Polymeric Materials

Precision Engineering

Dynamic Based Maintenance

Surface & Tribology

Skin Tribology

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SCIENTIFIC STAFFPRODUCTION TECHNOLOGY & MECHANICS OF POLYMERIC MATERIALS

Prof. Remko Akkerman

• Composites Forming

• Process, Property and

Performance Modelling

Prof. Leon Govaert

• Polymer Mechanics

• Lifetime Prediction of

Polymer & Composites

Ton Bor Ismet Baran Martin van Drongelen Laurent Warnet Wouter Grouve

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GROUP PROFILEPRODUCTION TECHNOLOGY & MECHANICS OF POLYMERIC MATERIALS

materials processing

performance &

lifetime prediction

Integral approach from micro to macro

Experiments, analysis and modelling

For composite materials and lightweight metals

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GROUP PROFILEPRODUCTION TECHNOLOGY & MECHANICS OF POLYMERIC MATERIALS

materials processing

performance &

lifetime prediction

microstructure

Understanding the process is key!

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GROUP PROFILEPRODUCTION TECHNOLOGY & MECHANICS OF POLYMERIC MATERIALS

materials processing

performance &

lifetime prediction

microstructure

Linking materials, process and design to component performance

requires a sound physical basis, predictive models and, if necessary,

new testing methodologies, validated experimentally to allow

manufacturing optimization.

Understanding the process is key!

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TYPICAL RESEARCH THEMESPRODUCTION TECHNOLOGY & MECHANICS OF POLYMERIC MATERIALS

materialsprocess

design

componentperformance

materialsprocess

design

componentperformance

I. (Virtual) processing

▪ Forming and draping

▪ Fiber placement and winding

▪ Pultrusion and infusion processes

▪ …

II. Performance

▪ Microstructure vs. performance

▪ Fatigue of (thermoplastic) composites

▪ Toughness of hybrid interfaces

▪ …

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TYPICAL RESEARCH THEMESPRODUCTION TECHNOLOGY & MECHANICS OF POLYMERIC MATERIALS

group focus

Composites and polymers1

▪ (Forming) press and autoclave

▪ Fiber placement

▪ Welding technologies

▪ Over-injection molding

▪ Tailored mini-press

▪ Vacuum infusion

Metals

▪ Friction stir welding/cladding

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RESEARCH FACILITIESPROCESSING

1) Partly through TPRC

Mechanical testing equipment

▪ Static universal testing machines

▪ Dynamic testing machines

▪ Instrumented drop tower

Fixtures and DAQ

▪ Numerous testing fixtures

▪ Automated toughness testing

▪ Digital image correlation

▪ High speed camera

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RESEARCH FACILITIESPERFORMANCE

Optical analysis

▪ Scanning electron microscope

▪ Confocal

▪ Digital microscopes

▪ Atomic force microscopy

Analytical analysis

▪ DSC, TMA, TGA

▪ FTIR,

▪ X-ray diffractometer

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RESEARCH FACILITIESANALYSIS

Background

▪ Stamp forming is ideally suited for high

volume manufacturing

▪ The lack of design tools and guidelines

make process development difficult

Objective

▪ Reduce process development time by the

development of CAE tools

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EXAMPLE PROJECTVIRTUAL PROCESSING CHAIN FOR PRESS FORMING

Approach

▪ Identification of underlying forming mechanisms

▪ Development of material models and characterization methodologies

▪ Development of advanced numerical methods for simulation

▪ Experimental validation with (simple) geometries and demonstrators

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EXAMPLE PROJECTVIRTUAL PROCESSING CHAIN FOR PRESS FORMING

intraply shear ply-ply & tool-ply

interaction

ply & stack bending

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EXAMPLE PROJECTVIRTUAL PROCESSING CHAIN FOR PRESS FORMING

material

part design

characterization

virtual processing

tool geometry specs

optimized blank handling

fiber orientations

residual stresses

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EXAMPLE PROJECTVIRTUAL PROCESSING CHAIN FOR PRESS FORMING

xy

▪ Fiber orientations

▪ Thickness distribution

▪ Fiber stresses

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EXAMPLE PROJECTVIRTUAL PROCESSING CHAIN FOR PRESS FORMING

▪ Fiber orientations

▪ Thickness distribution

▪ Fiber stresses

▪ Defects

Interested to optimize the manufacturing process and/or (long-term)

performance of lightweight materials in structural applications?

Let’s discuss how to cooperate!

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COLLABORATION SUMMARY

Collaboration models

▪ PhD or postdoc projects, possibly co-funded via a regional,

national or European subsidy

▪ MSc or BSc student projects

▪ …