Showing papers by "Nenad Bićanić published in 2001"
TL;DR: In this paper, an investigation into using continuum/discontinuum-based techniques to analyse backfilled masonry arch bridges is presented, where three different computational modelling tools, discontinuous deformation analysis (DDA), discrete element based analysis using particle flow code and the non-linear finite element analysis using diana have been utilised for this purpose and comparison are made with an experimental model developed at Edinburgh University.
94 citations
TL;DR: In this paper, a viscoplastic model for concrete and its performance under dynamic loading is presented, which is based on the so-called viscoplast consistency model, recently proposed by Wang and made use of the Hoffman yield function in its isotropic form.
75 citations
TL;DR: A novel integral form time‐integration algorithm for pseudodynamic testing is proposed, based on the Newmark implicit algorithm, which exhibits improved abilities to handle rapidly varying loads and stiffness properties during pseudodynamics testing, but displays some numerical damping and conditional stability.
Abstract: A novel integral form time‐integration algorithm for pseudodynamic testing is proposed, based on the Newmark implicit algorithm. The scheme builds on the recently proposed integral form of the Newmark explicit algorithm which exhibits improved abilities to handle rapidly varying loads and stiffness properties during pseudodynamic testing, but displays some numerical damping and conditional stability. The enhancement is based on the inclusion of an additional term in the displacement predictor, which not only renders the algorithm more consistent, but it eliminates numerical damping and makes the algorithm unconditionally stable.
9 citations