truss structures Chris Hunt, Michael Wisnom, Ben Woods CDT - - PowerPoint PPT Presentation

WrapToR composite truss structures

Chris Hunt, Michael Wisnom, Ben Woods CDT Conference 2019

16th April 2019

Wrapped Tow Reinforced truss concept

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Truss geometry Composite materials Winding process

• Move material away from

axis of bending

• Members experience

primarily axial loading

• Anisotropy can be tailored to

maximise efficiency

• Low-cost constituents
• Repeatable
• Highly level of automation

Manufacturing

3

• Tow twisting investigation

“Flat” “Twisted”

• Concept scaling
• Complex geometries
• Non-prismatic
• Curved?

Analysis

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• Trusses modelled using matrix structural analysis techniques
• Beam elements for each member
• Joint members allow:
• Node displacement
• Introduction of bending moments

Future Work

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• Strength predictions
• Further concept scaling
• Optimisation
• Applications

Thank you

chris.hunt@bristol.ac.uk