Results 211 to 220 of about 160,667 (264)

Optimization of the shape memory effect in shape memory polymers

Journal of Polymer Science Part A: Polymer Chemistry, 2011
AbstractIn this article, we show that given a thermoresponsive shape memory polymer, it is possible to alter a number of its properties, such as the recovery temperature, shape fixity ratio, maximum recovery stress, and final recovery stress (and even a right combination of some of them, e.g., the maximum recovery stress and final recovery stress ...
L. Sun, W. M. Huang, C. C. Wang, Y. Zhao, Z. Ding, H. Purnawali   +5 more
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Modeling the shape memory effect of shape memory polymer

SPIE Proceedings, 2009
Dynamic mechanical analysis (DMA) tests are conducted on the styrene-based shape memory polymer (SMP) to investigate its state transition behaviors. Tensile tests at various constant temperatures are carried out to reveal the stressstrain- temperature relationship of the styrene-based SMP.
Bo Zhou, Yanju Liu, Zhenqing Wang, Jin-Song Leng   +3 more
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Mechanisms of the multi-shape memory effect and temperature memory effect in shape memory polymers

Soft Matter, 2010
As recently demonstrated, after programming, thermo-responsive shape memorypolymers can exhibit the multi-shape memory effect (SME) upon heating. In addition, it is confirmed that the temperature corresponding to the maximum recovery stress in constrained recovery is roughly the temperature at which pre-deformation is conducted, a phenomenon known as ...
Li Sun, Wei Min Huang
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Multi-shape memory effect in shape memory polymer composites

Materials Letters, 2012
In this work, the multi shape memory effect is studied for two types of thermal active epoxy polymer composites. One of them is called the controlled behavior of composite material (CBCM) which has already been tested as an unsymmetrical active composite and the other one is the conventional symmetrical composite.
Basit, Abdul, L'Hostis, Gildas
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Shape Memory Effect in Cu Nanowires

Nano Letters, 2005
A rubber-like pseudoelastic behavior is discovered in single-crystalline face-centered-cubic (FCC) Cu nanowires in atomistic simulations. Nonexistent in bulk Cu, this phenomenon is associated primarily with a reversible crystallographic lattice reorientation driven by the high surface-stress-induced internal stresses due to high surface-to-volume ...
Wuwei, Liang, Min, Zhou, Fujiu, Ke
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The triple-shape memory effect in NiTi shape memory alloys

Smart Materials and Structures, 2012
We report two approaches to realize the triple-shape memory effect (SME), i.e., returning to the original shape from the temporary shape through one intermediate shape in a gradual/step-by-step heating induced recovery, in NiTi shape memory alloys (SMAs).
Tang, Cheng, Huang, Wei Min, Wang, Chang Chun, Purnawali, Hendra   +3 more
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Numerical Simulations on Shape Memory Effect of Shape Memory Polymer

Key Engineering Materials, 2010
Shape memory polymer (SMP) is being used in many engineering fields due to its shape memory effect and the advantages of large recoverable strain, excellent manufacturability, light weight, low cost and bio-degradability. Therefore it is of practical interest to investigate its thermo-mechanical behaviors.
Bo Zhou, Shi Cheng Zhao, Hui Qi, Li Min Zhou   +3 more
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Triple Shape Memory Effect of Star-Shaped Polyurethane

ACS Applied Materials & Interfaces, 2014
In this study, we synthesized one type of star-shaped polyurethane (SPU) with star-shaped poly(ε-caprolactone) (SPCL) containing different arm numbers as soft segment and 4,4'-diphenyl methane diisocyanate (MDI) as well as chain extender 1,4-butylene glycol (BDO) as hard segment.
Xifeng, Yang, Lin, Wang, Wenxi, Wang, Hongmei, Chen, Guang, Yang, Shaobing, Zhou   +5 more
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Temperature memory effect in amorphous shape memory polymers

Soft Matter, 2014
Temperature memory effect in shape memory polymers is found to be complicated and the shape memory characteristic temperature depends on the programming temperature and other programming conditions.
Kai, Yu, H Jerry, Qi
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Shape memory effect in tensegrity structures

Mechanics Research Communications, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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