Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Genetic algorithms in probabilistic finite element analysis of geotechnical problems
AbstractIn application to numerical analysis of geotechnical problems, the limit-state surface is usually not known in any closed form. The probability of failure can be assessed via the so-called reliability index. A minimization problem can naturally be formed with an implicit equality constraint defined as the limit-state function and optimization methods can be used for such problems. In this paper, a genetic algorithm is proposed and incorporated into a displacement finite element method to find the Hasofer–Lind reliability index. The probabilistic finite element method is then used to analyse the reliability of classical geotechnical systems. The performance of the genetic algorithm (GA) is compared with simpler probability methods such as the first-order-second-moment Taylor series method. The comparison shows that the GA can produce the results fairly quickly and is applicable to evaluation of the failure performance of geotechnical problems involving a large number of decision variables.
Genetic algorithms in probabilistic finite element analysis of geotechnical problems
AbstractIn application to numerical analysis of geotechnical problems, the limit-state surface is usually not known in any closed form. The probability of failure can be assessed via the so-called reliability index. A minimization problem can naturally be formed with an implicit equality constraint defined as the limit-state function and optimization methods can be used for such problems. In this paper, a genetic algorithm is proposed and incorporated into a displacement finite element method to find the Hasofer–Lind reliability index. The probabilistic finite element method is then used to analyse the reliability of classical geotechnical systems. The performance of the genetic algorithm (GA) is compared with simpler probability methods such as the first-order-second-moment Taylor series method. The comparison shows that the GA can produce the results fairly quickly and is applicable to evaluation of the failure performance of geotechnical problems involving a large number of decision variables.
Genetic algorithms in probabilistic finite element analysis of geotechnical problems
Cui, Lijie (Autor:in) / Sheng, Daichao (Autor:in)
Computers and Geotechnics ; 32 ; 555-563
21.11.2005
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Genetic algorithms in probabilistic finite element analysis of geotechnical problems
| Online Contents | 2005
Probabilistic Solutions to Geotechnical Problems
| British Library Conference Proceedings | 1996
Finite element analysis of saturated, strain softening geotechnical problems
| British Library Conference Proceedings | 2001
Coupled optimization and finite element dynamic analysis of geotechnical problems
| British Library Conference Proceedings | 2001