faserverbund- und stahl-standard- verbindung · faserverbund- und stahl-standard-verbindung...
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E-LASS 2017 Pula
Faserverbund- und Stahl-Standard-Verbindung
11.10.2017
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The missing link 2
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The missing link – Aim of FAUSST 3
A standardised, class approved, joining method
between
metals (steel) and fibre reinforced materials (GFRP)
– Textile based transition joint as a half-finished
product
– No additional adhesive
– No special processes on the yard; just weld
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FAUSST 4
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Process chain 5
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Process chain 6
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Production 7
Source: Fa.Groz-Beckert
Pillar stitch
Alternatives: Tricot, Satin…
Stitch thread
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Weft Inlay 8
Weft Inlay
100%
Steel
100%
Glass
Hybrid
Two load transfer mechanism:
• Fibre friction
• Mechanical locking
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FAUSST Knitted fabric 9
• Steel – Glass fibre knitted hybrid transition fabric
• Design in close cooperation with Fritz Moll Textilwerke
GmbH &Co.KG. Second design loop in process.
Steel
Hybrid
Glass
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Process chain 10
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Geometries of the FAUSST connector 11
Different geometries possible….
Monolithic Laminate
Monolithic Laminate
Sandwich construction
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Process chain 12
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Resistance seam welding 13
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Test results: Half-finished product 14
Weld joint
Steel connector
FAUSST Fabric
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Process chain 15
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Standard Process 16
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FRP Structure with Steel frame 17
Manufacturing
supported by
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Process chain 18
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WIG Welding 19
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Prototype 20
Steel Structure
Weld joint
FAUSST connector
(steel)
FAUSST fabric
(several layers)
Weld joint
Composite Structure
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Test results 21
F_first
[kN]
F_max
[kN]
Linear
joint
strength
[kN/m]
Strength
[MPa]
6.3 (0.4) 10.8 (1.1) 217 (23) 11 (1)
Specimen details:
4 FAUSST layers
20mm overlap
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Outlook 22
• Mechanical characterisation in progress
• Prototype demonstration in progress
Contact Us if interested!
• Second design loop of FAUSST fabric initiated
• Planning transition joint with other materials
Aluminium Glass Carbon
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Conclusion 23
• Development of a novel, patent pending, textile based,
transition joint between steel structures and glass fibre
structures
• Joining of dissimilar materials via standard processes
• Mechanical characterization still in progress, but
competitive with adhesive joints.
• Discussion with class for way for approval
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24
A research project sponsored by the “industrielle
Gemeinschaftsforsuchung und - entwicklungschung (IGF
18785 BG) by the German Bundesministerium für
Wirtschaft und Energie (BMWi)
Schweißtechnische Lehr- und
Versuchsanstalt Mecklenburg-
Vorpommern GmbH
Center of Maritime Technologies e.V.
Alter Hafen Süd 4, 18069 Rostock Bramfelder Str. 164, 22305 Hamburg
Director:
Dr. Rigo Peters
Director:
Mr. Ketelhohn
Project leader: Dr. Rigo Peters Project leader: Dr. Lars Molter
Contact details:
Tel.: 0381/8115018
Contact details:
Tel.: 040/692087641
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25Thank you!
Contacts and questions welcome at
Thank you for your attention!
www.fausst.com
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E-LASS 2017 Pula 28.04.2017