On the shape control of environmentally responsive composite with embedded Ti-Ni alloy as effectors

Authors: Yoshida, Hitoshi1; Funaki, Atsuo2; Yano, Shoichiro1

Source: Advanced Composite Materials, Volume 6, Number 4, 1997 , pp. 341-352(12)

Publisher: Taylor and Francis Ltd

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Responsive shape control of Environmentally Responsive Composites (ERCs) composed of Ti-Ni alloy effectors and CFRTP (Carbon Fiber Reinforced Thermoplastic) was investigated. The responsive shape of the ERC was controlled by means of curvature control. When the material properties and initial curvature of the effectors are given and any curvatures of ERC specimen at low and high temperatures are designed, the initial curvature and flexural rigidity of the matrix could be calculated. Specimens of ERC were made from effectors and a matrix in which the initial curvature and flexural rigidity were the values calculated. Comparison was made between the designed values and the experimental values of curvature of the ERC specimens at low and high temperatures. As the results, the experimental values agreed fairly well with the designed values. It was shown that responsive shape control, which is a practically important factor, was possible.

Keywords: Smart materials; Ti-Ni alloy; bi-directional response; environmentally responsive composite; radius of curvature; shape control

Document Type: Research Article

DOI: http://dx.doi.org/10.1163/156855197X00184

Affiliations: 1: National Institute of Materials and Chemical Research (NIMC), 1-1, Higashi, Tsukuba, Ibaraki, 305 Japan 2: Mie Industrial Research Institute, 3485, Ohtsuka, Takachayakomoricho, Tsu, Mie, 514 Japan

Publication date: January 1, 1997

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