The model of fiber-reinforced concrete element deformation under the conditions of plane stress state and subjected to radiation and its identification

7th International Symposium Actual Problems of Computational Simulation in Civil Engineering

土木建筑工程;计算机科学

Garibov, R.B.^1 ; Ovchinnikov, I.G.^1

Balakovo Institute of Engineering and Technology, National Research Nuclear University, MEPhI (Moscow Engineering Physics Institute), 140 Chapaeva Street, Saratov Region, Balakovo

413853, Russia^1

关键词: Approximation errors;    Elastic foundation;    Fiber-reinforced concretes;    Linear approximations;    Model identification;    Non-linear integral;    Radiation condition;    Radiation swelling;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/456/1/012106/pdf
DOI  :  10.1088/1757-899X/456/1/012106

来源: IOP

【 摘 要 】

A model of fiber-reinforced concrete element deformation was presented under the conditions of plane stress and subjected to radiation, leading to the change of fibre-concrete deformation diagram and radiation swelling. They proposed a model identification technique, which use determined the coefficients for the cases of nonlinear and linear approximation of deformation diagrams, and the approximation error for these cases was estimated. Using the given physical relationships and a number of additional hypotheses, a non-linear integral-differential resolution equation of a fiber-reinforced concrete plate on an elastic foundation is obtained under radiation conditions.