Micrornechanics Model of Ice Fields--i: Microscale Constitutive

Content Provider	Semantic Scholar
Author	Ostoja-Starzewski, Martin Jessup, Ryan
Abstract	The mechanics of ice fields, in order to be well analyzed, requires a realistic model admitting the intrinsic microstructure of random physical and geometrical characteristics. When the field of pack ice possesses a single characteristic size at the microscale (scale of tens to hundreds of meters), a planar graph representation provides a convenient framework for the description of the ice field's micromechanics by the discrete fields of deformation and interaction force. A relationship between the latter two quantities specifies the microscale constitutive behavior of the particular ice field, and is taken here, in case of tightly packed ice, in the form of a linear elastic/viscoplastic law. Finally, a statistical continuum model for finite motions of the ice field is derived as an equivalent approximation to the original graph-based random field model. Both these models provide a basis for further micro and macromechanical analyses to be reported in subsequent papers.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://mechanical.illinois.edu/media/uploads/web_sites/82/files/pageoph_1.20100205.4b6c828ec50564.63291524.pdf
Language	English
Access Restriction	Open
Subject Keyword	Approximation Graph (abstract data type) Graph - visual representation Hospital admission Mechanics Motion Pack unit Paper Planar graph Quantity Transcutaneous Electric Nerve Stimulation Triune continuum paradigm
Content Type	Text
Resource Type	Article