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2 Engineering Transactions

2 2015

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Two-scale modelling of reactive powder concrete. Part II numerical simulations

100%

Denisiewicz A. , Kuczma M.

2015

tom Vol. 63, iss. 1

35--54

This article is the second part of a series about two-scale modelling of reactive powder concrete (RPC). In the first part [2] a method of modelling RPC microstructure was presented, the boundary value problem of mechanics for a representative cell at the micro scale was formulated and solved. In this part we will consider a method for determining material parameters at the macro level, and describe a technique of enforcement of boundary conditions upon an RVE as well as illustrate the theoretical considerations with results of numerical simulations. In the third part of the series we will present the validation of the proposed numerical model, based on the computational simulations of full size beams made of two RPC mixtures and own laboratory testing of the beams.

Two-scale modelling of reactive powder concrete. P. 3, Experimental tests and validation

80%

Denisiewicz A. , Kuczma M.

2015

tom Vol. 63, iss. 1

55--76

This article is the third and final part of a series about two-scale modelling of reactive powder concrete in the linear range. In the first part [1] a method of modelling RPC microstructure was presented, the boundary value problem of mechanics for a representative cell at the micro scale was formulated and solved. In the second part [2] a method for determining material parameters at the macro level was shown, a technique for enforcing boundary conditions upon an RVE was described, and the results of numerical simulations were presented. In this part we will present the results of laboratory tests of full-size beams made from two RPC mixtures, the results of numerical simulations of these beams and the validation of the proposed numerical model.