This title appears in the Scientific Report :
2000
Please use the identifier:
http://hdl.handle.net/2128/20521 in citations.
Traglast- und Einspielanalyse zur Bewertung der Sicherheit passiver Komponenten
Traglast- und Einspielanalyse zur Bewertung der Sicherheit passiver Komponenten
Limit and shakedown theorems are exact theories of classical plasticity for the direct computation of safety factors or of the load carrying capacity under constant and varying loads . The direct calculation of complex structures with Finite Element Methods (FEM) leads to large scale optimization pr...
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Personal Name(s): | Heitzer, M. (Corresponding author) |
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Contributing Institute: |
Institut für Sicherheitsforschung und Reaktortechnik; ISR |
Imprint: |
Jülich
Forschungszentrum, Zentralbibliothek
2000
|
Document Type: |
Book |
Research Program: |
Allgemeine und nicht nukleare Sicherheitsforschung |
Series Title: |
Berichte des Forschungszentrums Jülich
3704 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Limit and shakedown theorems are exact theories of classical plasticity for the direct computation of safety factors or of the load carrying capacity under constant and varying loads . The direct calculation of complex structures with Finite Element Methods (FEM) leads to large scale optimization problems . General mathematical optimization methods can not solve these problems in sufficient time . The solution is obtained from a basis-reduction technique and the reduced problem is solved by sequential quadratic programming methods . The approach needs considerably less input data and computer time than incremental plastic analyses and is applied to complex structures. Design and assessment of engineering structures imply decision making under uncertainty of the actual load carrying capacity of a structure. Uncertainty may originate from random fluctuations of significant physical properties, from limited information and from model idealizations of unknown credibility . Structural reliability analysis deals with all these uncertainties in a rational way. The present contribution uses lower bound theorem of limit and shakedown load to define a limit state function for reliability analysis by the First Order Reliability Method . |