production technology and mechanics of polymeric … · i. (virtual) processing forming and draping...
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PRODUCTION TECHNOLOGY AND
MECHANICS OF POLYMERIC MATERIALSLIGHTWEIGHT MATERIALS FOR STRUCTURAL APPLICATIONS
10/12/2018Research Group Introduction 1
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▪ Organization
▪ Group profile
▪ Research facilities
▪ Selected project(s)
▪ Collaboration
10/12/2018Research Group Introduction 2
CONTENTSGROUP INTRODUCTION
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10/12/2018Research Group Introduction 3
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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10/12/2018Research Group Introduction 4
UT ORGANISATIONFACULTY OF ENGINEERING TECHNOLOGY
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10/12/2018Research Group Introduction 5
UT ORGANISATIONDEPARTMENTS
UNIVERSITY OF TWENTE
Engineering Technology
MS3: Mechanics of Solids, Surfaces and Systems
Energy & FlowDesign
EngineeringCivil
EngineeringBiomedical Engineering
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10/12/2018Research Group Introduction 6
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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10/12/2018Research Group Introduction 7
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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10/12/2018Research Group Introduction 8
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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10/12/2018Research Group Introduction 9
GROUP PROFILEPRODUCTION TECHNOLOGY & MECHANICS OF POLYMERIC MATERIALS
materials processing
performance &
lifetime prediction
microstructure
Understanding the process is key!
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10/12/2018Research Group Introduction 10
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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10/12/2018Research Group Introduction 11
TYPICAL RESEARCH THEMESPRODUCTION TECHNOLOGY & MECHANICS OF POLYMERIC MATERIALS
materialsprocess
design
componentperformance
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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
▪ …
10/12/2018Research Group Introduction 12
TYPICAL RESEARCH THEMESPRODUCTION TECHNOLOGY & MECHANICS OF POLYMERIC MATERIALS
group focus
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Composites and polymers1
▪ (Forming) press and autoclave
▪ Fiber placement
▪ Welding technologies
▪ Over-injection molding
▪ Tailored mini-press
▪ Vacuum infusion
Metals
▪ Friction stir welding/cladding
10/12/2018Research Group Introduction 13
RESEARCH FACILITIESPROCESSING
1) Partly through TPRC
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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
10/12/2018Research Group Introduction 14
RESEARCH FACILITIESPERFORMANCE
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Optical analysis
▪ Scanning electron microscope
▪ Confocal
▪ Digital microscopes
▪ Atomic force microscopy
Analytical analysis
▪ DSC, TMA, TGA
▪ FTIR,
▪ X-ray diffractometer
10/12/2018Research Group Introduction 15
RESEARCH FACILITIESANALYSIS
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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
10/12/2018Research Group Introduction 16
EXAMPLE PROJECTVIRTUAL PROCESSING CHAIN FOR PRESS FORMING
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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
10/12/2018Research Group Introduction 17
EXAMPLE PROJECTVIRTUAL PROCESSING CHAIN FOR PRESS FORMING
intraply shear ply-ply & tool-ply
interaction
ply & stack bending
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10/12/2018Research Group Introduction 18
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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10/12/2018Research Group Introduction 19
EXAMPLE PROJECTVIRTUAL PROCESSING CHAIN FOR PRESS FORMING
xy
▪ Fiber orientations
▪ Thickness distribution
▪ Fiber stresses
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10/12/2018Research Group Introduction 20
EXAMPLE PROJECTVIRTUAL PROCESSING CHAIN FOR PRESS FORMING
▪ Fiber orientations
▪ Thickness distribution
▪ Fiber stresses
▪ Defects
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Interested to optimize the manufacturing process and/or (long-term)
performance of lightweight materials in structural applications?
Let’s discuss how to cooperate!
10/12/2018Research Group Introduction 21
COLLABORATION SUMMARY
Collaboration models
▪ PhD or postdoc projects, possibly co-funded via a regional,
national or European subsidy
▪ MSc or BSc student projects
▪ …