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Reference number 3499   (Listed in Apr. 21, 2010) (Categories Materials / Mechanics / Aeronautics and Cosmology / Civil Engineering and Architecture)
Light-weight Structural Materials Having Shape Recovery Functionality
Contents Smart structural materials capable of self-detecting deformation and damage, along with the self-recovering from such deformation and damage are increasingly important, especially in environments accompanied by inherently difficult maintenance protocols. Thus, those materials are highly desired. For example, the outer space environment, which is fairly typical of such demands, along with its associated structural materials, can be dramatically improved relative to the reliability of those space structures. The laboratory has conducted research on smart structural materials. Based upon their recent achievement, they have developed a sandwich panel sandwiching a honeycomb shape light-weight core made of a shape memory alloy (Fig. 1) with carbon fiber reinforced plastic (CFRP) laminated plates, and thereby succeeded in achieving self-recovery (Fig. 3) of deflection damage on a panel surface due to buckling of a wall surface of the honeycomb core (Fig. 2) generated by an exterior impact. This technology is expected to be applied to various fields, such as the development of reusable shock absorbers and shape-changeable structures. We seek collaboration with a relevant company or institution with an aim toward further developing these structural materials.
OKABE, Yoji, Associate Professor
Institute of Industrial Science, Research Department of Mechanical and Biofunctional Systems
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