Robustness in numerical computations of damage evolution in cohesive-frictional materials

  • René de Borst Delft University of Technology

Abstract

Numerical simulations of the mechanical behaviour of structures composed of cohesive-frictional materials such as soils, concrete and rocks, still suffer from a lack of robustness. Too often an inability to continue the computation beyond a certain level of loading is encountered. Also, predictions of the structural behaviour can be quite inaccurate, with errors amounting up to 100%. Some typical causes for these observations are discussed and some remedies are suggested.

Keywords

References

[1] A.E. Aktan, R. Miller, B. Shahrooz. Destructive field testing of a r/c slab bridge and associated analytical correlation studies. Research Status Report, University of Cincinnati, Cincinnati, 1991.
[2] U. Andelfinger, E. Ramm. EAS-elements for 2D, 3D, plate and shell structures and their equivalence to HR elements. Int. J. Num. Meth. Eng., 36: 1311-1337, 1991.
[3] Z.P. Bazant. Comment on or tho tropic models for concrete and geomaterials. ASCE J. Eng. Mech., 109: 849- 865, 1983.
[4] Z.P. Bazant, B. Oh. Crack band theory for fracture of concrete. RILEM Mater. Struct., 16: 155- 177, 1983.
[5] P.A.J. van den Bogert, R. de Borst, G.T. Luiten, J. Zeilmaker. Robust finite elements for 3D analysis of rubberlike materials. Engng. Comput., 8: 3-17, 1991.
Published
Jun 26, 2023
How to Cite
DE BORST, René. Robustness in numerical computations of damage evolution in cohesive-frictional materials. Computer Assisted Methods in Engineering and Science, [S.l.], v. 4, n. 1, p. 27-54, june 2023. ISSN 2956-5839. Available at: <https://cames.ippt.pan.pl/index.php/cames/article/view/1412>. Date accessed: 17 may 2024.
Section
Articles