Effect of flexural crack on plain concrete beam failure mechanism A numerical simulation

Abstract

The flexural failure of plain concrete beam occurs along with development of flexural crack on beam. In this paper by using ABAQUS, mechanism failure of plain concrete beam under three steps have been simulated. The cracking moment has been analytically calculated and applied on the both sides of the fixed beam, and flexural crack has been simulated on beam. Displacement, von Mises, load reaction, displacementcrack length, von Mises-crack length and von Mises-displacement of beams have been graphical depicted. Results indicated that, the flexural crack governs beam mechanism failure and its effects on beam resistance failure. It has been found that the flexural crack in initial stage it developed slowly and changes to be fast at the final stage of collapsing beam due to reduction of the flexural resistance of beam. Increasing mechanical properties of concrete, collapse displacement is reduced.

Design geometry of the embankment for minimize nonlinear displacement

“…On the other hand, stress analysis, crack, failure mechanism, damage mechanisms, fatigue, strain energy, seismic response, displacement, soil bearing capacity, etc. have been investigated using different techniques including numerical analysis and 3D numerical simulation 10–32 . The weld geometry was simulated using numerical simulation, and it shows that residual stress redistribution agrees with the improvement fatigue strength, 10 that the morphology of subsoil in developing nonlinear displacement has numerically been simulated, 20 and that it has reported about the impact of the concrete footing shape on the nonlinear displacements of the subsoil using numerical simulation during subsoil that is subjected to the near‐fault ground motions 31 ; in simulation of complex engineering problems, considering geometry of the model is important in the design view, and it needs to be applied in seismic analysis of a geo‐structure for enhancement of quality of the numerical simulation.…”

The impact of mesh structural design on nonlinear numerical simulation of geo‐structure: A seismic analysis

“…The mesh design has been explained in solving a scientific problem 7 . The strain energy, cracks, damage, and fatigue assessment require the application of nonlinear numerical simulation using different mesh structure and evaluation error analysis, estimation of strain frequency, and prediction distribution of nonlinear strain 8–26 . A suitable mesh design is needed in the high quality of simulation using the nonlinear numerical simulation.…”

The effect of nonlinearity of acceleration histories to timber beam seismic response

“…The stress, strain, displacement, strength, fatigue, stiffness, geometry, crack paths, two cross-section interaction, uniaxial loading, multiaxial loading, material characteristics, and embedded footings that have been investigated and reported in the literature are directly and indirectly related to strain energy dissipation and damping of the material, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] all of these concepts are required to apply on strain displacement of timber structure to enhance seismic design.…”