Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk

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Majid Movahedi Rad

University of Technology and Economics (HU)


Ostatnie publikacje
1.  Lógó J., Movahedi Rad M., Knabel J., Tauzowski P., Reliability based design of frames with limited residual strain energy capacity, Periodica Polytechnica Civil Engineering, ISSN: 0553-6626, Vol.55, No.1, pp.13-20, 2011

Streszczenie:
The aim of this paper is to create new type of plastic limit design procedures where the influence of the limited load carrying capacity of the beam-to-column connections of elasto-plastic steel (or composite) frames under multi-parameter static loading and probabilistically given conditions are taken into consideration. In addition to the plastic limit design to control the plastic behaviour of the structure, bound on the complementary strain energy of the residual forces is also applied. If the design uncertainties (manufacturing, strength, geometrical) are taken into consideration at the computation of the complementary strain energy of the residual forces the reliability based extended plastic limit design problems can be formed. Two numerical procedures are elaborated. The formulations of the problems yield to nonlinear mathematical programming which are solved by the use of sequential quadratic algorithm.

Słowa kluczowe:
reliability analysis, limit analysis, residual strain energy, Monte Carlo simulation, optimal design

Afiliacje autorów:
Lógó J. - University of Technology and Economics (HU)
Movahedi Rad M. - University of Technology and Economics (HU)
Knabel J. - IPPT PAN
Tauzowski P. - IPPT PAN
2.  Movahedi Rad M., Lógó J., Knabel J., Tauzowski P., Reliability based limit design of frames with limited residual strain energy capacity, Proceedings in Applied Mathematics and Mechanics, ISSN: 1617-7061, DOI: 10.1002/pamm.200910323, Vol.9, pp.709-710, 2009

Streszczenie:
The aim of this paper is to take into consideration the influence of the limited load carrying capacity of the connections on the plastic limit state of elasto-plastic steel (or composite) framed structures under multi-parameter stochastic loading and probabilistically given conditions. In addition to the plastic limit design to control the plastic behaviour of the structure, bound on the complementary strain energy of the residual forces is also applied. This bound has significant effect for the load parameter. If the design uncertainties (manufacturing, strength, geometrical) are expressed by the calculation of the complementary strain energy of the residual forces a reliability based extended limit design problem is formed. The formulations of the problems yield to nonlinear mathematical programming which are solved by the use of sequential quadratic algorithm. The bi-level optimization procedure governed by the reliability index calculation.

Słowa kluczowe:
limit analysis of frames, reliability analysis, optimization

Afiliacje autorów:
Movahedi Rad M. - University of Technology and Economics (HU)
Lógó J. - University of Technology and Economics (HU)
Knabel J. - IPPT PAN
Tauzowski P. - IPPT PAN

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