This paper explores the ability to tailor the mechanical properties of composite compliant shell mechanisms, by exploiting the thermal prestress introduced during the composite laminate cure. An extension of an analytical tape spring model with composite thermal analysis is presented, and the effect of the thermal prestress is studied by means of energy landscapes for the cylindrical composite shells. Tape springs that would otherwise be monostable structures become bistable and exhibit greater ranges of low-energy twisting with thermally induced prestress. Predicted shell geometries are compared with finite element (FE) results and manufactured samples, showing good agreement between all approaches. Wider challenges around the manufacture of prestressed composite compliant mechanisms are discussed.

References

1.
Radaelli
,
G.
, and
Herder
,
J.
,
2014
, “
Isogeometric Shape Optimization for Compliant Mechanisms With Prescribed Load Paths
,”
ASME
Paper No. DETC2014-35373.
2.
Radaelli
,
G.
, and
Herder
,
J.
,
2016
, “
A Monolithic Compliant Large-Range Gravity Balancer
,”
Mech. Mach. Theory
,
102
, pp.
55
67
.
3.
Weaver
,
P.
,
O'Donnell
,
M.
, and
York
,
C.
,
2010
, “
Approximations for Warp-Free Laminate Configurations
,”
AIAA
Paper No. 2010-2774.
4.
Guest
,
S.
, and
Pellegrino
,
S.
,
2006
, “
Analytical Models for Bistable Cylindrical Shells
,”
Proc. R. Soc. A
,
462
(
2067
), pp.
839
854
.
5.
Guest
,
S.
,
Kebadze
,
E.
, and
Pellegrino
,
S.
,
2011
, “
A Zero-Stiffness Elastic Shell Structure
,”
J. Mech. Mater. Struct.
,
6
(
1–4
), pp.
203
212
.
6.
Seffen
,
K.
, and
Guest
,
S.
,
2011
, “
Prestressed Morphing Bistable and Neutrally Stable Shells
,”
ASME J. Appl. Mech.
,
78
(
1
), p.
011002
.
7.
Murphey
,
T.
, and
Pellegrino
,
S.
,
2004
, “
A Novel Actuated Composite Tape-Spring for Deployable Structures
,”
AIAA
Paper No.2014-1528.
8.
Schultz
,
M.
,
Hulse
,
M.
,
Keller
,
P.
, and
Turse
,
D.
,
2008
, “
Neutrally Stable Behavior in Fiber-Reinforced Composite Tape Springs
,”
Compos. Part A
,
39
(
6
), pp.
1012
1017
.
9.
Morsch
,
F.
, and
Herder
,
J.
,
2010
, “
Design of a Generic Zero Stiffness Compliant Joint
,”
ASME
Paper No. DETC2010-28351.
10.
Herder
,
J.
,
Barents
,
R.
,
Schenk
,
M.
,
van Dorsser
,
W.
, and
Wisse
,
B.
,
2011
, “
Spring-to-Spring Balancing as Energy-Free Adjustment Method in Gravity Equilibrators
,”
ASME J. Mech. Des.
,
133
(
6
), p.
061010
.
11.
Schenk
,
M.
, and
Guest
,
S.
,
2014
, “
On Zero Stiffness
,”
Proc. Inst. Mech. Eng. Part C
,
228
(
10
), pp.
1701
1714
.
12.
Cantera
,
M.
,
Romera
,
J.
,
Adarraga
,
I.
, and
Mujika
,
F.
,
2014
, “
Modelling of [0/90] Laminates Subject to Thermal Effects Considering Mechanical Curvature and Through-the-Thickness Strain
,”
Compos. Struct.
,
110
(
1
), pp.
77
87
.
13.
Nettles
,
A.
,
1994
, “
Basic Mechanics of Laminated Composite Plates
,” National Aeronautics and Space Administration Marshall Spaceflight Centre, Huntsville, AL, Report No.
NASA-RP-1351, M-764, NAS 1.61:1351
.https://ntrs.nasa.gov/search.jsp?R=19950009349
14.
Mansfield
,
E.
,
1989
,
The Bending & Stretching of Plates
, 2nd ed.,
Cambridge University Press
, New York.
15.
Daynes
,
S.
, and
Weaver
,
P.
,
2013
, “
Stiffness Tailoring Using Prestress in Adaptive Composite Structures
,”
Compos. Struct.
,
106
, pp.
282
287
.
16.
Pirrera
,
A.
,
Lachenal
,
X.
,
Daynes
,
S.
,
Weaver
,
P.
, and
Chenchiah
,
I.
,
2013
, “
Multi-Stable Cylindrical Lattices
,”
J. Mech. Phys. Solids
,
61
(
11
), pp.
2087
2107
.
17.
Lachenal
,
X.
,
Weaver
,
P.
, and
Daynes
,
S.
,
2012
, “
Multi-Stable Composite Twisting Structure for Morphing Applications
,”
Proc. R. Soc. A
,
468
(
2141
), pp.
1230
1251
.
18.
Lachenal
,
X.
,
Daynes
,
S.
, and
Weaver
,
P.
,
2013
, “
A Zero Torsional Stiffness Twist Morphing Blade as a Wind Turbine Load Alleviation Device
,”
Smart Mater. Struct.
,
22
(
6
), p.
065016
.
19.
Fancey
,
K.
, and
Pang
,
J.
,
2009
, “
The Flexural Stiffness Characteristics of Viscoelastically Prestressed Polymeric Matrix Composites
,”
Compos. Part A
,
40
(
6–7
), pp.
784
790
.
20.
Brinkmeyer
,
A.
,
Pellegrino
,
S.
, and
Weaver
,
P.
,
2015
, “
Effects of Long-Term Stowage on the Deployment of Bistable Tape Springs
,”
ASME J. Appl. Mech.
,
83
(
1
), p.
011008
.
21.
Fancey
,
K.
, and
Fazal
,
A.
,
2016
, “
Prestressed Polymeric Matrix Composites: Longevity Aspects
,”
Polym. Compos.
,
37
(
7
), pp.
2092
2097
.
22.
Nijssen
,
J.
,
2016
, “
A Type Synthesis Approach to Compliant Shell Mechanisms
,”
Master's thesis
, Delft University of Technology, Delft, The Netherlands.https://repository.tudelft.nl/islandora/object/uuid%3A37a0cbaf-6e7a-4b2f-b987-b0e47c8dc59a
23.
Murphey
,
T.
,
Francis
,
W.
,
Davis
,
B.
, and
Mejia-Ariza
,
J.
,
2015
, “
High Strain Composites
,”
AIAA
Paper No. 2015-0942.
24.
Ratcliffe
,
J.
,
Czabaj
,
M.
, and
O'Brien
,
T.
,
2012
, “
Characterizing Delamination Migration in Carbon/Epoxy Tape Laminates
,” 27th American Society for Composites Technical Conference, Arlington, TX, Oct. 1–3.
25.
Weaver
,
P.
,
2005
, “
Anisotropic Laminates That Resist Warping During Manufacture
,”
15th International Conference on Composite Materials (ICCM15)
,
Durban, South Africa
,
June 27–July 2
.
26.
Diaconu
,
C.
, and
Sekine
,
H.
,
2004
, “
Erratum on Flexural Characteristics and Layup Optimization of Laminated Composite Plates Under Hygrothermal Conditions Using Lamination Parameters
,”
J. Therm. Stress.
,
27
(
12
), pp.
1213
1216
.
27.
Tsai
,
S.
,
1981
,
Introduction to Composite Materials
,
Technomic Publishing
,
Westport, CT
.
28.
Etches
,
J.
,
Potter
,
K.
,
Weaver
,
P.
, and
Bond
,
I.
,
2009
, “
Environmental Effects on Thermally Induced Multistability in Unsymmetric Composite Laminates
,”
Compos. Part A
,
40
(
8
), pp.
1240
1247
.
29.
Telford
,
R.
,
2014
, “
Hygro-Thermal Residual Stresses in Unsymmetrical Multi-Stable Composite Laminates
,”
Ph.D. thesis
, University of Limerick, Limerick, Ireland.https://ulir.ul.ie/handle/10344/4270
You do not currently have access to this content.