document: Experimental feedforward and feedback control of a one-dimensional SMA composite The control of embedded shape memory alloy -LRB- SMA -RRB- actuators has recently become a topic of interest in the field of smart structures . The inherent difficulties associated with SMA actuators has resulted in a variety of approaches . Homogenization provides a simplified , yet mathematically rigorous , method of determining average stress and strain fields in a composite . A modified constitutive model is presented based on experimental results demonstrating the inability of most simple phenomenological models to capture the effective behavior of SMAs during thermal activation . A feedforward controller is presented for a SMA composite based on the homogenization of a modified phenomenological model for SMAs in a linear matrix
doc_bio_tags: O O O O O O O O B O O O O B I I I O B O O O O O O O O O O O O O B I O O O O O O B O O O O O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B O O O O O O O O B I O O O O O O O O B O O O O B O O O O O O O O O B I
extractive_keyphrases: thermal activation embedded shape memory alloy sma smart structures homogenization linear matrix models
abstractive_keyphrases: sma actuators