Lattice-structures and constructs with designed thermal expansion coefficients
Abstract
A thermal expansion-managed lattice structure having a plurality of unit cells each having flexure bearing-mounted tabs supported on a base and actuated by thermal expansion of an actuator having a thermal expansion coefficient greater than the base and arranged so that the tab is inwardly displaced into a base cavity. The flexure bearing-mounted tabs are connected to other flexure-bearing-mounted tabs of adjacent unit cells so that the adjacent unit cells are spaced from each other to accommodate thermal expansion of individual unit cells while maintaining a desired bulk thermal expansion coefficient of the lattice structure as a whole.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1162122
- Patent Number(s):
- 8871338
- Application Number:
- 13/607,640
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
B - PERFORMING OPERATIONS B81 - MICROSTRUCTURAL TECHNOLOGY B81B - MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2012 Sep 07
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Spadaccini, Christopher, and Hopkins, Jonathan. Lattice-structures and constructs with designed thermal expansion coefficients. United States: N. p., 2014.
Web.
Spadaccini, Christopher, & Hopkins, Jonathan. Lattice-structures and constructs with designed thermal expansion coefficients. United States.
Spadaccini, Christopher, and Hopkins, Jonathan. Tue .
"Lattice-structures and constructs with designed thermal expansion coefficients". United States. https://www.osti.gov/servlets/purl/1162122.
@article{osti_1162122,
title = {Lattice-structures and constructs with designed thermal expansion coefficients},
author = {Spadaccini, Christopher and Hopkins, Jonathan},
abstractNote = {A thermal expansion-managed lattice structure having a plurality of unit cells each having flexure bearing-mounted tabs supported on a base and actuated by thermal expansion of an actuator having a thermal expansion coefficient greater than the base and arranged so that the tab is inwardly displaced into a base cavity. The flexure bearing-mounted tabs are connected to other flexure-bearing-mounted tabs of adjacent unit cells so that the adjacent unit cells are spaced from each other to accommodate thermal expansion of individual unit cells while maintaining a desired bulk thermal expansion coefficient of the lattice structure as a whole.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 28 00:00:00 EDT 2014},
month = {Tue Oct 28 00:00:00 EDT 2014}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Design of smart composite materials using topology optimization
journal, January 1999
- Sigmund, O.; Torquato, S.
- Smart Materials and Structures, Vol. 8, Issue 3
Concepts for structurally robust materials that combine low thermal expansion with high stiffness
journal, September 2007
- Steeves, Craig A.; dos Santos e Lucato, Sergio L.; He, Ming
- Journal of the Mechanics and Physics of Solids, Vol. 55, Issue 9, p. 1803-1822
Shrinkage and Thermal Expansion of a Two Phase Material
journal, November 1968
- Cribb, J. L.
- Nature, Vol. 220, Issue 5167
Composites with extremal thermal expansion coefficients
journal, November 1996
- Sigmund, O.; Torquato, S.
- Applied Physics Letters, Vol. 69, Issue 21
Cellular solid structures with unbounded thermal expansion
journal, January 1996
- Lakes, R.
- Journal of Materials Science Letters, Vol. 15, Issue 6
Cellular solids with tunable positive or negative thermal expansion of unbounded magnitude
journal, May 2007
- Lakes, Roderic
- Applied Physics Letters, Vol. 90, Issue 22
Tailorable thermal expansion hybrid structures
journal, June 2009
- Jefferson, George; Parthasarathy, Triplicane A.; Kerans, Ronald J.
- International Journal of Solids and Structures, Vol. 46, Issue 11-12, p. 2372-2387
Synthesis of multi-degree of freedom, parallel flexure system concepts via Freedom and Constraint Topology (FACT) – Part I: Principles
journal, April 2010
- Hopkins, Jonathan B.; Culpepper, Martin L.
- Precision Engineering, Vol. 34, Issue 2, p. 259-270
Synthesis of precision serial flexure systems using freedom and constraint topologies (FACT)
journal, October 2011
- Hopkins, Jonathan B.; Culpepper, Martin L.
- Precision Engineering, Vol. 35, Issue 4, p. 638-649
Synthesis of multi-degree of freedom, parallel flexure system concepts via freedom and constraint topology (FACT). Part II: Practice
journal, April 2010
- Hopkins, Jonathan B.; Culpepper, Martin L.
- Precision Engineering, Vol. 34, Issue 2, p. 271-278