caa a22 4500 463232682 CHVBK 20180405153247.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10853-007-1649-z doi (NATIONALLICENCE)springer-10.1007/s10853-007-1649-z Mechanics of the hysteretic large strain behavior of mussel byssus threads [Elektronische Daten] [Katia Bertoldi, Mary Boyce] Natural fibers are particularly interesting from a materials point of view since their morphology has been tailored to enable a wide range of macroscopic level functions and mechanical properties. In this paper, we focus on mussel byssal threads which possess a morphology specifically designed to provide a hysteretic yet resilient large strain deformation behavior. X-ray diffraction studies have shown that numerous natural fibers have a multi-domain architecture composed of folded modules which are linked together in series along a macromolecular chain. This microstructure leads to a strong rate and temperature dependent mechanical behavior and one which exhibits a stretch-induced softening of the mechanical response as a result of the underlying morphology evolving with imposed stretched. This paper addresses the development of a constitutive model for the stress-strain behavior of the distal portion of mussel byssal threads based on the underlying protein network structure and its morphology evolving with imposed stretched. The model will be shown to capture the major features of the stress-strain behavior, including the highly nonlinear stress-strain behavior, and its dependence on strain rate and stretch-induced softening. Springer Science+Business Media, LLC, 2007 Bertoldi Katia Department of Mechanical Engineering, Massachusetts Institute of Technology, Room 1-304, 77 Massachusetts Avenue, 02139, Cambridge, MA, USA aut Boyce Mary Department of Mechanical Engineering, Massachusetts Institute of Technology, Room 1-304, 77 Massachusetts Avenue, 02139, Cambridge, MA, USA aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/21(2007-11-01), 8943-8956 0022-2461 42:21<8943 2007 42 10853 https://doi.org/10.1007/s10853-007-1649-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1649-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bertoldi Katia Department of Mechanical Engineering, Massachusetts Institute of Technology, Room 1-304, 77 Massachusetts Avenue, 02139, Cambridge, MA, USA aut NATIONALLICENCE 700 1- Boyce Mary Department of Mechanical Engineering, Massachusetts Institute of Technology, Room 1-304, 77 Massachusetts Avenue, 02139, Cambridge, MA, USA aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/21(2007-11-01), 8943-8956 0022-2461 42:21<8943 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer