It all started with a trip to Red River... Coauthors, families, and colleagues enjoy a working vacation in the Sangre de Cristo Mountains of New Mexico, March 2006. As technical conversations on modeling, characterization and applications of shape memory alloys (SMAs) were blending with the view of the white snowy peaks surrounding Red River, New Mexico, it became clear to our research group that a consistent and comprehensive text on SMAs would be very helpful to future students interested in performing research in this ?eld. Many communication barriers could be eliminated and access to the...

Afterwards, the model for the structural mechanics of origami sheets with smooth folds, which is applicable to structures comprised of arbitrary materials (e.g., elastic materials, active materials), is presented.