NDLI: Description of the elastic deformation and degradation of elastic properties of dispersedly failing isotropic materials

Content Provider	Springer Nature Link
Author	Lagzdins, A. Zilaucs, A.
Copyright Year	2006
Abstract	A model is put forward for describing the elastic deformation of a quasi-homogeneous isotropic material capable of accumulating scattered microdamages during loading, which eventually leads to its total failure. The degree of damage of the material at a point is characterized by a centrosymmetric scalar function on the unit sphere, named the damage function, whose values depend on a dimensionless equivalent stress. This function is approximated by a fourth-rank tensor, which is used to construct a constitutive relation between stresses and strains in a differential form. By way of example, the elastic deformation of concrete and the degradation of its linearly elastic properties are described, and the basic three-dimensional sections of the corresponding strength surface are constructed.
Starting Page	129
Ending Page	140
Page Count	12
File Format	PDF
ISSN	01915665
Journal	Mechanics of Composite Materials
Volume Number	42
Issue Number	2
e-ISSN	15738922
Language	English
Publisher	Kluwer Academic Publishers-Consultants Bureau
Publisher Date	2006-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	initially isotropic material scattered microdamages damage function failure equivalent stress degradation of elastic properties acquired anisotropy failure surface strength surface Characterization and Evaluation Materials Ceramics, Glass, Composites, Natural Methods Mechanics Structural Mechanics
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mathematics Biomaterials Condensed Matter Physics Polymers and Plastics

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