DURABILITY ASSESSMENT OF FABRIC-REINFORCED SHAPE-MEMORY POLYMER COMPOSITES

被引：0

作者：

Tandon, G. P. ^{[1
]}

Goecke, K. ^{[1
]}

Cable, K.

Baur, J. ^{[1
]}

机构：

[1] USAF, Res Lab, Mat & Mfg Directorate, AFRL RXBC, Wright Patterson AFB, OH 45433 USA

来源：

SMASIS2009, VOL 1 | 2009年

关键词：

POLYURETHANE SERIES; FILM;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The present study is a baseline assessment of the environmental durability of current state-of-the-art, fabric-reinforced shape memory materials being considered for morphing applications. Tensile dog-bone-shaped specimens are cut along three different directions, namely, along 0 degrees, perpendicular (90), and at 45 degrees to the orientation of the fabric. The shape memory properties and elastomeric response before and after relevant environmental exposure to water at 49 degrees C for 4 days, in lube oil at room temperature and at 49 degrees C for 24 hours, and after exposure to Xenon Arc (63 degrees C, 18 minutes water and light! 102 minutes light only) and spectral intensity of 0.3 to 0.4 watts/m(2) for 125 cycles (250 hours exposure time) are measured. Weight loss of the as-received and conditioned specimens is monitored while the dog-bone-shaped specimens are subjected to recovery following fixation. Parameters being investigated include stored strain, recovery stress, shape fixity, shape recovery, and modulus in the glassy and rubbery state.

引用

页码：23 / 32

页数：10