MODELING OF CRACK DEVELOPMENT SCHEMES IN SLABS AND SHAPE SHELLS BASED ON TRAJECTORIES OF THE HIGHEST TENSILE STRESSES

В статье выполнен расчет напряженно-деформированного состояния плиты и пологой оболочки. В точках нижней поверхности плиты (оболочки) определяются главные площадки и главные напряжения, строятся траектории наибольших растягивающих напряжений. The stress-strain state of a slab and a shallow shell are calculated in the article. At the points of the lower surface of the slab (shell), the main areas and main stresses are determined, and the trajectories of the highest tensile stresses are constructed. The trajectories are compared with the schemes of crack development obtained on the basis of the experiment. A qualitative convergence between the calculated and experimental data is noted.