Efficiency of dynamic relaxation methods in nonlinear analysis of truss and frame structures

• Published in: Computers & structures 2012-12, Vol.112-113, p.295-310
• Main Authors: Rezaiee-Pajand, M., Sarafrazi, S.R., Rezaiee, H.
• Format: Article
• Language: English
• Subjects: Algorithms; Applied sciences; Benchmarking; Building structure; Buildings. Public works; Construction (buildings and works); Convergence rate; Dynamic relaxation; Dynamic structural analysis; Efficiency; Exact sciences and technology; Frame and truss; Frames; Fundamental areas of phenomenology (including applications); Nonlinear analysis; Nonlinear dynamics; Nonlinearity; Physics; Solid mechanics; Solvers; Static elasticity (thermoelasticity...); Structural and continuum mechanics; Trusses; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
• ISSN: 0045-7949; 1879-2243
• DOI: 10.1016/j.compstruc.2012.08.007

► The efficiencies of dynamic relaxation methods in the nonlinear analysis of truss and frame structures are calculated. ► Twelve new and well known dynamic relaxation methods are compared. ► Several benchmark frame and truss structures are solved by these schemes. ► Based on the total number of iterations and overall analysis duration, the studied techniques are graded. Twelve new and well known dynamic relaxation methods are considered. Several benchmark frame and truss structures, with geometric nonlinear behavior, are solved by these schemes. Based on the total number of iterations and overall analysis duration, the studied techniques are graded. In this way, the efficiencies of the solvers are found and these algorithms are sorted in terms of their abilities.