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DINAME2019
DINAME2019
Using SMA Hybrid Composites to Energy Absorption on Frame Structures Subjected to Earthquake Loads
Submission Author:
Lucas Vignoli , RJ , Brazil
Co-Authors:
Lucas Vignoli, Marcelo Savi, Sami EL-BORGI
Presenter: Lucas Vignoli
doi://10.26678/ABCM.DINAME2019.DIN2019-0172
Abstract
Natural dynamical loads are unavoidable and usually have a catastrophic consequence for engineering structures. Earthquakes are a possible situation where loads are abruptly applied on the structure. This kind of behavior leads to be avoided, favoring the application of passive control to avoid dramatic situations. Hysteretic behavior is a candidate to be employed on engineering structures promoting energy dissipation. In this regard, shape memory alloys (SMAs) have been exploited in order to use pseudoelastic behavior promoted by phase transformation that results in hysteresis loops that are related to energy dissipation. SMA Hybrid Composites (SMAHC) constitute interesting alternative for engineering structures using a combination of SMA embedded in a polymer matrix. This paper investigates the use of SMAHC on engineering frame structures subjected to earthquakes loads. It presents a parametric analysis about the influence of the constituent volume fractions. Results indicate the great energy dissipation capability of this device, pointing the optimum SMA volume fraction for design conditions.
Keywords
SMA, Composite Materials, Earthquake, Smart Structures
