INFORMATION SYSTEM FOR SELECTION OF HEAVY CONCRETE COMPOSITION WITH ANTI-FROST ADDITIVES
The paper presents algorithms for the calculation of building structures made of composite materials based on the stiffness matrix of physically nonlinear finite element developed by the author. The algorithms are presented in matlab, on the basis of which the program works. An algorithm for assembling a global stiffness matrix in vector form, an algorithm for calculating the stress-strain state of the structure, an algorithm for taking into account the physical nonlinearity of materials based on deformation diagrams. A test calculation of a beam made of isotropic material was performed. Testing on the linear calculation of the statically-definable beam of their isotropic material showed a good correlation when compared with the calculation in the PC LIRA and analytical calculation.