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Variable stiffness property study on shape memory polymer composite tube
- Source :
- Smart Materials and Structures. 21:094021
- Publication Year :
- 2012
- Publisher :
- IOP Publishing, 2012.
-
Abstract
- As a typical smart material, shape memory polymers (SMPs) have the capability of variable stiffness in response to external stimuli, such as heat, electricity, magnetism and solvents. In this research, a shape memory polymer composite (SMPC) tube composed of multi-layered filament wound structures is investigated. The SMPC tube possesses considerable flexibility under high temperature and rigidity under low temperature. Significant changes in effective engineering modulus can be achieved through regulating the environment temperature. Based on the classical laminated-plate theory and Sun’s thick laminate analysis, a 3D theory method is used to study the effective engineering modulus and modulus ratio of the SMPC tube. The tensile test is conducted on the SMPC tube to verify the accuracy of the theoretical method. In addition, the effective engineering modulus and modulus ratio are discussed under different fiber-winding angles and fiber volume fractions of the SMPC tube. The presented analysis provides meaningful guidance to assist the design and manufacture of SMPC tubes in morphing skin applications.
- Subjects :
- Materials science
business.industry
Composite number
Modulus
Rigidity (psychology)
Structural engineering
Condensed Matter Physics
Smart material
Atomic and Molecular Physics, and Optics
Shape-memory polymer
Mechanics of Materials
Signal Processing
General Materials Science
Tube (fluid conveyance)
Fiber
Electrical and Electronic Engineering
Composite material
business
Civil and Structural Engineering
Tensile testing
Subjects
Details
- ISSN :
- 1361665X and 09641726
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Smart Materials and Structures
- Accession number :
- edsair.doi...........38ddb9c3c7b79fe704273e7b2779a202