SAFETY ASSESSMENT OF CONSTRUCTIONS MADE OF REINFORCED CONCRETE CONSIDERING MICROCRACK FORMATION
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Published:2002
S V Elizarov, A V Benin, 2002. "SAFETY ASSESSMENT OF CONSTRUCTIONS MADE OF REINFORCED CONCRETE CONSIDERING MICROCRACK FORMATION", Challenges of Concrete Construction: Volume 5, Sustainable Concrete Construction: Proceedings of the International Conference held at the University of Dundee, Scotland, UK on 9–11 September 2002, Ravindra K. Dhir, Thomas D. Dyer, Judith E. Halliday
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The existing system of concepts defining ways of engineering calculations and quality control of materials, is based on Hooke's linear law of deformation. Appearance of new materials, mainly composites, and extension of their range compels a revision of this system, because all these materials have clearly expressed non-linear mechanical properties. Our researches relate to the revision of these concepts; the new system is based on a nonlinear equation linking stresses and deformations under monoaxial deformations conditions. The equation is uniform for compressive and tensile strains and based on the fact that processes of destruction and deformation are interconnected, material structure, in general, is defined as a set of constrains, which strength is determined by the Gaussian law. The equation is proved to be true by both direct experiences and experiences of other authors. For example, it well describes tensile curves beyond the strength limit.
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