TY - GEN
T1 - Basic properties and application of shape memory polymer composite to deployable hinge for solar arrays
AU - Wang, Xiaohua
AU - Zhang, Wei
AU - Lan, Xin
AU - Liu, Yanju
AU - Leng, Jinsong
PY - 2007
Y1 - 2007
N2 - This paper is concerned about the basic properties of deployment of shape memory polymer composite (SMPC) and its application to deployable hinge for solar arrays. Shape memory polymer (SMP) used in this study is a thermoset styrene-based shape memory resin in contrast to normal thermoplastic SMPs. Carbon fiber fabric reinforced SMPC is discussed here. In order to investigate the basic performances of deployment for SMPC hinge, the experimental methods are used as follows: dynamic mechanical analysis (DMA), three point bending test and deployment tests. Results indicate that the glass transition temperature (Tg) of SMPC is approximate 63°C. SMPC shows typical linear elasticity and high bending modulus before glass transition in SMP, while exhibits apparent nonlinear viscoelasticity and low bending modulus within the range of glass transition in SMP. The shape recovery ratio of SMPC is above 90% at/above Tg, while drops sharply at below Tg. The deployment properties of SMPC depend strongly on the number of thermomechanical cycles, which become relatively stable after some packaging/deployment cycles. Moreover, deployment velocity and shape recovery ratio rise remarkably with the increase of temperature of SMPC. In the end, a prototype of solar array actuated by SMPC hinge, which is heated by passing an electrical current, deploys from about 180° to 0° in one minute. This SMPC hinge performs good deployment performances during numerous thermomechanical cycles.
AB - This paper is concerned about the basic properties of deployment of shape memory polymer composite (SMPC) and its application to deployable hinge for solar arrays. Shape memory polymer (SMP) used in this study is a thermoset styrene-based shape memory resin in contrast to normal thermoplastic SMPs. Carbon fiber fabric reinforced SMPC is discussed here. In order to investigate the basic performances of deployment for SMPC hinge, the experimental methods are used as follows: dynamic mechanical analysis (DMA), three point bending test and deployment tests. Results indicate that the glass transition temperature (Tg) of SMPC is approximate 63°C. SMPC shows typical linear elasticity and high bending modulus before glass transition in SMP, while exhibits apparent nonlinear viscoelasticity and low bending modulus within the range of glass transition in SMP. The shape recovery ratio of SMPC is above 90% at/above Tg, while drops sharply at below Tg. The deployment properties of SMPC depend strongly on the number of thermomechanical cycles, which become relatively stable after some packaging/deployment cycles. Moreover, deployment velocity and shape recovery ratio rise remarkably with the increase of temperature of SMPC. In the end, a prototype of solar array actuated by SMPC hinge, which is heated by passing an electrical current, deploys from about 180° to 0° in one minute. This SMPC hinge performs good deployment performances during numerous thermomechanical cycles.
KW - Carbon fiber fabric composite
KW - Deployable hinge
KW - Shape memory polymer
KW - Solar arrays
UR - https://www.scopus.com/pages/publications/51249119447
U2 - 10.1117/12.780331
DO - 10.1117/12.780331
M3 - 会议稿件
AN - SCOPUS:51249119447
SN - 9780819465368
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - International Conference on Smart Materials and Nanotechnology in Engineering
T2 - International Conference on Smart Materials and Nanotechnology in Engineering
Y2 - 1 July 2007 through 4 July 2007
ER -