30 July 2001 Self-actuating fiber composites for auto-adaptive structures
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This paper explores a novel approach in developing auto- adaptive, High-Performance Fiber Reinforced Concrete (HPFRC)-based composite structures. This is achieved through the selective use of hybrid, self-actuating, Shape Memory Alloy-HPFRC composites (SMA-HPFRCCs). Previous use of `passive' HPFRCs in seismic retrofit and new construction resulted in excellent seismic performance. By combining `passive' FRC fibers with continuous or discontinuous SMA fibers, self-actuating SMA-HPFRCCs that can change their stress-strain response during loading, were recently developed. The paper presents results of a numerical investigation on the use of such SMA-HPFRCCs to develop highly energy absorbing, replaceable, `fuse' zones that adjust their response to the level of overload, and thus optimize overall system response to the different levels of seismic excitations.
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Neven Krstulovic-Opara, P. Wriggers, L. Krstulovic-Opara, "Self-actuating fiber composites for auto-adaptive structures", Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); doi: 10.1117/12.434154; https://doi.org/10.1117/12.434154

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