Folded Structures - School of Civil Engineering - 2016.09.01 - Folded... · Kirigami Modular Non-Linear ... house production - No additional components ... Folded Structures 01 September

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01 September 2016 | 1/50Joe Gattas

Folded StructuresJoe GattasSchool of Civil EngineeringUniversity of Queensland



Origami-Inspired Engineering

Space Solar PanelNASA Jet Propulsion Laboratory

Military ShelterKinetic Structures Laboratory,

University of Notre Dame

Transitional ShelterUniversity of Oxford &

University of Queensland

Origami StentUniversity of Oxford



Parametric Geometry



(Sheet) Material & Manufacture



Folded Structures Lab

Application

Prefabricated Construction

Sandwich & Shell Structures

Thin-Walled Structures

Deployable Structures

Other?

Material/Manuf.

Steel

Timber

Composite

Concrete

Other?

Geometry

Origami

Kirigami

Modular

Non-Linear

Other?

=+



Folded Structures Lab

Application

Prefabricated Construction

Sandwich & Shell Structures

Thin-Walled Structures

Deployable Structures

Other?

Material/Manuf.

Steel

Timber

Composite

Concrete

Other?

Geometry

Origami

Kirigami

Modular

Non-Linear

Other?

Folded Steel Thin-Walled StructuresQuan Shi

Digitally-Fabricated Timber StructuresYousef Al-Qaryouti

Hybrid FRP-Timber-Concrete ConstructionYa Ou

Curved-Surface Pop-Up StructuresTing-Uei Lee

Inflatable Textured Tubes & MiscellaneousZhiming Guo & Others



Digitally-Fabricated Timber StructuresYousef Al-QaryoutiSchool of Civil EngineeringUniversity of Queensland



Precedents - Digital Fabrication & Integral Mechanical Joints- Automated product of

(plywood) parts for full house production

- No additional components or tools for assembly

Sass, L. and Botha, M., 2006. The instant house: A model of design production with digital fabrication. International Journal of Architectural Computing, 4(4), pp.109-123.



Precedents - Digital Fabrication & Ultra-Modular Construction- Three parts only- Enables:

- distributed fabrication, - interoperability, and - no instructions for

assembly.

Gattas, J.M. and You, Z., 2016. Design and digital fabrication of folded sandwich structures. Automation in Construction, 63, pp.79-87.



- New technique to computationally-generate parts:1. Parametrise ‘global’ (3D & 2D) geometry 2. Parametrise connection detail

Geometry

3. 1+2 = Manufacturable parts



Manufacture



Testing- Uniaxial compression of:

- 9mm/17mm plywood - UB/SHS- Parallel/perpendicular grains- Glued, press-fit, tight-fit

- Range of exhibited failure modes:- Material fracture- Local buckling- Beam/plate buckling, - Inter-veneer delamination- Joint pop-off (friction-loss)

- Explosive (barrel) - Gradual (zipper)



Results17mm SHS

17mm UB9mm UB

9mm SHS



Future Work- Press-fit application (LVLs?)- Bending-stabilized press-fits



Hybrid FRP-Timber-Concrete ConstructionYa Ou, Dilum Fernando, School of Civil Engineering, University of Queensland



- Hybrid FRP-timber-concrete (FTC) composite panelsConcrete: compression, acoustic isolation, high damping ratioTimber: tension, fire protection

FRP: reliable, geometry flexibility

Material properties

Geometry/Material

2400 570

Basic pattern

Short bottom pattern

Longitudinal pattern

Higher pattern



Testing



Testing



Results

- Ductile failures- High capacity- Longitudinal core + shear

bolts improve performance



Folded SteelThin-Walled StructuresQuan ShiSchool of Civil EngineeringUniversity of Queensland



PrecedentsArchitectural (Novel Forms) Industrial (Novel Manufacturing)

Robofold, Bentley, and

Kyungeun Ko collaboration,

Royal College 2013

Industrial Origami, Chassis

and methods of forming the

same, 2009



Precedents

All Images: Industrial Origami <http://www.industrialorigami.com/home.cfm>



Geometry



Fabrication



Testing – Compression



Results

Numerical Analysis in Abaqus1. Linear buckling analysis to

generate defect2. Nonlinear Riks Analysis for post-

buckling behaviourGood prediction of ‘symmetric’ case



Results

Boundary condition and eccentric centre-of-loading for ‘asymmetric’ case



-4

1

6

11

0 10 20 30 40 50 60 70 80 90 100Dis

pla

cem

ent

mm

Node number

2 22 32 62

72 82 102 112

Unit: second

DIC Extracted Profile

Results



Future Work- Additional elements – beam, joints- Additional assemblies – frames, space truss



Interlude – Integrated Digital Design

Parametric Geometry

Analysis

Digital Fabrication



Interlude – Integrated Digital Design

Parametric Design

CAD (Design)

Analysis Optimisation

BIM (Construction)

Digital Fabrication Robotic Construction

Operations SimulationVisualisation & Monitoring (VR, AR, Scans, Smart Sites)



Curved-SurfacePop-Up StructuresTing-Uei LeeSchool of Civil EngineeringUniversity of Queensland



Precedents- Simplified curved-crease origami parametrisation

enabled engineering explorations



Precedents- Applications:

- Sandwich panels – improved- Crash cans – same- Subsea pipelines - same



Precedents- Applications:

- Thin-Walled Sections – big improvement



Geometry/Manufacture- Bending-active (non-linear elastic) composite panels

- 3D surface scanning



Testing – Surface Error



Results



MiscellaneousVisiting Students, 4th year Thesis, School of Architecture, IcarusSchool of Civil EngineeringUniversity of Queensland



Zhiming Guo – Hyperelastic Tubes - Textured (origami) geometries strengthen against propagation buckling failures in

ductile metal pipelines.- Similar strengthening against bulge instabilities in hyperelastic textured tubes?



Testing/Results



4th Year Thesis & UQ Composites- Folded Fabrication of FRP-Timber hollow sections



Icarus – Folded Frame Structures



Icarus & Architecture – Fish Lane Follies



Icarus & Architecture – Translucent Structures



Thank You & Questions

Folded Structures - School of Civil Engineering - 2016.09.01 - Folded... · Kirigami Modular Non-Linear ... house production - No additional components ... Folded Structures 01 September

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