Electrical and thermal stimuli responsive thermoplastic shape memory polymer composites containing rGO, Fe3O4 and rGO–Fe3O4 fillers

2020 ◽  
Author(s):  
G. Jerald Maria Antony ◽  
S. T. Aruna ◽  
Chetan S. Jarali ◽  
S. Raja
Keyword(s):  
Shape Memory ◽  
Polymer Composites ◽  
Shape Memory Polymer ◽  
Stimuli Responsive ◽  
Thermal Stimuli

scholarly journals A review of stimuli-responsive shape memory polymer composites

Polymer ◽  
2013 ◽  
Vol 54 (9) ◽  
pp. 2199-2221 ◽  
Author(s):  
Harper Meng ◽  
Guoqiang Li
Keyword(s):  
Shape Memory ◽  
Polymer Composites ◽  
Shape Memory Polymer ◽  
Stimuli Responsive

scholarly journals On the behavior of functionally graded shape memory polymer composites under thermal coupling

2021 ◽  
Vol 37 ◽  
pp. 311-317
Author(s):  
Bingfei Liu ◽  
Kai Yin ◽  
Fangfang Zhang ◽  
Rui Zhou
Keyword(s):  
Shape Memory ◽  
Polymer Composites ◽  
Thermal Loading ◽  
Shape Memory Polymer ◽  
Geometric Dimension ◽  
Functionally Graded ◽  
Thermal Coupling ◽  
Stimuli Responsive ◽  
Performance Requirements ◽  
Mechanics Of Composite Materials

Abstract Shape memory polymer composites (SMPC), which are a type of stimuli-responsive material, show better mechanical properties than pure shape memory polymers. However, different engineering applications have different requirements for the fiber content of SMPC. For example, some parts of the structure require more fibers to enhance strength, while other parts require fewer fibers to maintain deformability. In order to solve this problem, a functionally graded shape memory polymer composite (FG-SMPC) is proposed in this work. The contents of the fibers for the FG-SMPC can be changed along the geometric dimension of the material, enabling different performance requirements to be met in different parts of the structure. Based on the constitutive model of the SMP and the mechanics of composite materials, the mechanical behaviors of the FG-SMPC under thermal loading are discussed. The results show that such materials exhibit gradient behaviors for both the intensity and shape memory effect with different gradient distributions.

Modal Analyses of Deployable Truss Structures Based on Shape Memory Polymer Composites

2016 ◽  
Vol 08 (07) ◽  
pp. 1640009 ◽  
Author(s):  
Fengfeng Li ◽  
Liwu Liu ◽  
Xin Lan ◽  
Tong Wang ◽  
Xiangyu Li ◽  
...  
Keyword(s):  
Finite Element ◽  
Shape Memory ◽  
Polymer Composites ◽  
Dynamic Properties ◽  
Low Cost ◽  
Shape Memory Polymer ◽  
Truss Structures ◽  
Modal Test ◽  
The Stability ◽  
Mechanical Devices

With large spatial deployable antennas used more widely, the stability of deployable antennas is attracting more attention. The form of the support structure is an important factor of the antenna’s natural frequency, which is essential to study to prevent the resonance. The deployable truss structures based on shape memory polymer composites (SMPCs) have made themselves feasible for their unique properties such as highly reliable, low-cost, light weight, and self-deployment without complex mechanical devices compared with conventional deployable masts. This study offers deliverables as follows: an establishment of three-longeron beam and three-longeron truss finite element models by using ABAQUS; calculation of natural frequencies and vibration modes; parameter studies for influence on their dynamic properties; manufacture of a three-longeron truss based on SMPC, and modal test of the three-longeron truss. The results show that modal test and finite element simulation fit well.

scholarly journals Shape memory polymer network with thermally distinct elasticity and plasticity

2016 ◽  
Vol 2 (1) ◽  
pp. e1501297 ◽  
Author(s):  
Qian Zhao ◽  
Weike Zou ◽  
Yingwu Luo ◽  
Tao Xie
Keyword(s):  
Shape Memory ◽  
Molecular Design ◽  
Shape Change ◽  
Shape Memory Polymer ◽  
Polymer Network ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Device Applications ◽  
Temperature Ranges ◽  
Rational Molecular Design

Stimuli-responsive materials with sophisticated yet controllable shape-changing behaviors are highly desirable for real-world device applications. Among various shape-changing materials, the elastic nature of shape memory polymers allows fixation of temporary shapes that can recover on demand, whereas polymers with exchangeable bonds can undergo permanent shape change via plasticity. We integrate the elasticity and plasticity into a single polymer network. Rational molecular design allows these two opposite behaviors to be realized at different temperature ranges without any overlap. By exploring the cumulative nature of the plasticity, we demonstrate easy manipulation of highly complex shapes that is otherwise extremely challenging. The dynamic shape-changing behavior paves a new way for fabricating geometrically complex multifunctional devices.

Electroactive Shape Memory Polymer Composites

2018 ◽  
pp. 127-149
Author(s):  
D I Arun ◽  
P Chakravarthy ◽  
R Arockiakumar ◽  
B Santhosh
Keyword(s):  
Shape Memory ◽  
Polymer Composites ◽  
Shape Memory Polymer

Shape Memory Polymer Composites

2018 ◽  
pp. 87-114
Author(s):  
D I Arun ◽  
P Chakravarthy ◽  
R Arockiakumar ◽  
B Santhosh
Keyword(s):  
Shape Memory ◽  
Polymer Composites ◽  
Shape Memory Polymer
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