RATIONAL DESIGN OF RECONFIGURABLE PRISMATIC ARCHITECTED MATERIALS Johannes T. B. (Bas) Overvelde 4D Printing & Meta Materials Conference 01/02/2017
RATIONAL DESIGN OF RECONFIGURABLE PRISMATIC ARCHITECTED MATERIALS
Johannes T. B. (Bas) Overvelde
4D Printing & Meta Materials Conference 01/02/2017
Stoop et al. (2015) Nat. MatMullin et al. (2007) PRLMeza et al. (2014) Science
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Increased toughness Negative Poisson’s ratio Tunable drag coefficient
Soft structuresCompliance as a paradigm for new and unusual functionality
Stoop et al. (2015) Nat. MatMullin et al. (2007) PRLMeza et al. (2014) Science
2
Increased toughness Negative Poisson’s ratio Tunable drag coefficient
Soft structuresCompliance as a paradigm for new and unusual functionality
Stoop et al. (2015) Nat. MatMullin et al. (2007) PRLMeza et al. (2014) Science
2
Increased toughness Negative Poisson’s ratio Tunable drag coefficient
Soft structuresCompliance as a paradigm for new and unusual functionality
Stoop et al. (2015) Nat. MatMullin et al. (2007) PRLMeza et al. (2014) Science
2
Increased toughness Negative Poisson’s ratio Tunable drag coefficient
Soft structuresCompliance as a paradigm for new and unusual functionality
Stoop et al. (2015) Nat. MatMullin et al. (2007) PRLMeza et al. (2014) Science
Tune functionality through changes in geometry
2
Increased toughness Negative Poisson’s ratio Tunable drag coefficient{ {passive active
geometry dictates function
Soft structuresCompliance as a paradigm for new and unusual functionality
v
Negative Poisson’s ratio
Soft structures with internal mechanismsSimilarities between origami
3
v
Negative Poisson’s ratio
Soft structures with internal mechanismsSimilarities between origami
3
Similar designs can be found in origami
4
Origami-inspired metamaterialsMiura-ori pattern
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Schenk and Guest (2013) PNAS
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Origami-inspired metamaterialsMiura-ori pattern
4
Schenk and Guest (2013) PNAS
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Origami-inspired metamaterialsMiura-ori pattern
4
Limited in the degrees of freedom (or # soft modes) and in ways to tesselate
Schenk and Guest (2013) PNAS
4
Origami-inspired metamaterialsMiura-ori pattern
4
Limited in the degrees of freedom (or # soft modes) and in ways to tesselate
Schenk and Guest (2013) PNAS
How can we generalise the design of reconfigurable metamaterials?
SnapologyModular origami using ribbons to create convex extruded polyhedra
Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications5
SnapologyModular origami using ribbons to create convex extruded polyhedra
Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications5
Template to design extruded geometries Deformation modes
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature6
Template to design extruded geometries Deformation modes
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature6
Numerical mode analysissmall rotationsrigid facesedges modeled as torsional springs
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Template to design extruded geometries Deformation modes
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature6
Numerical mode analysissmall rotationsrigid facesedges modeled as torsional springs
K
Strategy to design reconfigurable structuresTemplate based on space-filling assemblies of convex polyhedra
7Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Strategy to design reconfigurable structuresTemplate based on space-filling assemblies of convex polyhedra
7Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Strategy to design reconfigurable structuresTemplate based on space-filling assemblies of convex polyhedra
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dpj,b � dpj,a +Rj �R0j = 2Ljnj
Extrusion direction dictated by a set of constraints
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Strategy to design reconfigurable structuresReconfigurability of thin-walled structures
9Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Strategy to design reconfigurable structuresReconfigurability of thin-walled structures
9Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Strategy to design reconfigurable structuresReconfigurability of thin-walled structures
9Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
numerical mode analysissmall rotationsrigid facesedges modeled as torsional springsperiodic boundary conditions
Fabrication of prototypesBuild modules that can easily be assembled
10Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Fabrication of prototypesBuild modules that can easily be assembled
10Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Reconfigurability of thin-walled structuresExperimental validation
numerical mode analysissmall rotationsrigid facesedges modeled as torsional springsperiodic boundary conditions
11Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Reconfigurability of thin-walled structuresExperimental validation
11Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Many possible templates availableReconfigurability of designs based on uniform polyhedra assemblies
12
ndof
= 0 (rigid) ndof
= 1 ndof
= 2 ndof
= 3
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Many possible templates availableReconfigurability of designs based on uniform polyhedra assemblies
12
ndof
= 0 (rigid) ndof
= 1 ndof
= 2 ndof
= 3
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Properties of metamaterialStiffness of designs based on uniform polyhedra assemblies
13Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Exploring the possible design spaceAdapting the unit cell
14Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Reconfigure along a single degree of freedom
Exploring the possible design spaceAdapting the unit cell
14Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Reconfigure along a single degree of freedom
Exploring the possible design spacePossible macroscopic shape changes
15Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
Exploring the possible design spacePossible macroscopic shape changes
15Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature
only microscopic changes in shape
only macroscopic changes in one direction macroscopic changes in two directions
From prototype to actual materialArbitrarily shaped architectures
Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications 16
unit cell
chair
tube
dome
From prototype to actual materialArbitrarily shaped architectures
Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications 16
unit cell
chair
tube
dome
17From prototype to actual materialFabrication from single material with different thickness
Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications 17
17From prototype to actual materialFabrication from single material with different thickness
Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications 17
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Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications 18
From prototype to actual materialDistributed actuation to trigger shape changes
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Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications 18
From prototype to actual materialDistributed actuation to trigger shape changes
From prototype to actual material3D printing using multiple materials
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature 19
From prototype to actual material3D printing using multiple materials
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature 19
From prototype to actual material3D printing using multiple materials
Bring distributed actuation and 3d printing togetherScale the structure down further
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature 19
From prototype to actual material4D printing?
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature 20Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications
Gladman et al. (2016) Nat. Mat.
Self assembly lab - MIT
From prototype to actual material4D printing?
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature 20Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications
Gladman et al. (2016) Nat. Mat.
Self assembly lab - MIT
BIG Thanks to…
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature 21Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications
Katia Bertoldi
James WeaverChuck Hoberman
BIG Thanks to…
Overvelde, Weaver, Hoberman, Bertoldi (2017) Nature 21Overvelde, de Jong, Shevchenko, Becerra, Whitesides, Weaver, Hoberman, Bertoldi (2016) Nature Communications
Katia Bertoldi
James WeaverChuck Hoberman