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Deformation and fracture characterization of inelastic composite materials using potentials
Author(s) -
Schapery R. A.
Publication year - 1987
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760270110
Subject(s) - materials science , viscoelasticity , composite material , composite number , deformation (meteorology) , fracture (geology) , characterization (materials science) , work (physics) , nonlinear system , structural engineering , thermodynamics , nanotechnology , physics , engineering , quantum mechanics
An approach using strain energy‐like potentials to characterize deformation and fracture of inelastic, nonlinear composite materials is described. The inelasticity may be due to various causes, including microcracking, microslipping, and rate processes responsible for fading memory (viscoelasticity). The concept of work potentials is introduced first, and then arguments are given for their existence for inelastic materials. Emphasis in the paper is on elastic composite materials with changing or constant states of distributed damage. Experimental results on polymeric composites are subsequently presented to illustrate this approach to deformation and fracture characterization. Finally, extension to viscoelastic behavior is discussed.