Reliability-based design optimization of trusses under dynamic shakedown constraints

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Abstract

A reliability-based design optimization problem under dynamic shakedown constraints for elastic perfectly plastic truss structures subjected to stochastic wind actions is presented. The simultaneous presence of quasi-static (cyclic) thermal loads is also considered. As usual in the shakedown theory, the quasi-statical loads will be defined as variable within a deterministic domain, while the dynamic problem will be treated considering an extended Ceradini-Gavarini approach. Some sources of uncertainties are introduced in the structural system and in the load definition. The reliability-optimization problem is formulated as the minimization of the volume of the structure subjected to deterministic and probabilistic constraints (related with the dynamic shakedown behavior). The related reliability constraints check is performed by means of a standard Monte Carlo simulation technique. An illustrative example is reported in order to validate the proposed approach and to provide useful practical tools.
Lingua originaleEnglish
pagine (da-a)-
Numero di pagine12
RivistaStructural and Multidisciplinary Optimization
Stato di pubblicazionePublished - 2019

All Science Journal Classification (ASJC) codes

  • Software
  • Control and Optimization
  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Control and Systems Engineering

Cita questo

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title = "Reliability-based design optimization of trusses under dynamic shakedown constraints",
abstract = "A reliability-based design optimization problem under dynamic shakedown constraints for elastic perfectly plastic truss structures subjected to stochastic wind actions is presented. The simultaneous presence of quasi-static (cyclic) thermal loads is also considered. As usual in the shakedown theory, the quasi-statical loads will be defined as variable within a deterministic domain, while the dynamic problem will be treated considering an extended Ceradini-Gavarini approach. Some sources of uncertainties are introduced in the structural system and in the load definition. The reliability-optimization problem is formulated as the minimization of the volume of the structure subjected to deterministic and probabilistic constraints (related with the dynamic shakedown behavior). The related reliability constraints check is performed by means of a standard Monte Carlo simulation technique. An illustrative example is reported in order to validate the proposed approach and to provide useful practical tools.",
keywords = "Dynamic shakedown; Elastic plastic trusses; Reliability-based design; Stochastic wind loads; Software; Control and Systems Engineering; Computer Science Applications1707 Computer Vision and Pattern Recognition; Computer Graphics and Computer-Aided Design; Control and Optimization",
author = "Luigi Palizzolo and Pietro Tabbuso",
year = "2019",
language = "English",
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journal = "Structural and Multidisciplinary Optimization",
issn = "1615-147X",
publisher = "Springer Verlag",

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TY - JOUR

T1 - Reliability-based design optimization of trusses under dynamic shakedown constraints

AU - Palizzolo, Luigi

AU - Tabbuso, Pietro

PY - 2019

Y1 - 2019

N2 - A reliability-based design optimization problem under dynamic shakedown constraints for elastic perfectly plastic truss structures subjected to stochastic wind actions is presented. The simultaneous presence of quasi-static (cyclic) thermal loads is also considered. As usual in the shakedown theory, the quasi-statical loads will be defined as variable within a deterministic domain, while the dynamic problem will be treated considering an extended Ceradini-Gavarini approach. Some sources of uncertainties are introduced in the structural system and in the load definition. The reliability-optimization problem is formulated as the minimization of the volume of the structure subjected to deterministic and probabilistic constraints (related with the dynamic shakedown behavior). The related reliability constraints check is performed by means of a standard Monte Carlo simulation technique. An illustrative example is reported in order to validate the proposed approach and to provide useful practical tools.

AB - A reliability-based design optimization problem under dynamic shakedown constraints for elastic perfectly plastic truss structures subjected to stochastic wind actions is presented. The simultaneous presence of quasi-static (cyclic) thermal loads is also considered. As usual in the shakedown theory, the quasi-statical loads will be defined as variable within a deterministic domain, while the dynamic problem will be treated considering an extended Ceradini-Gavarini approach. Some sources of uncertainties are introduced in the structural system and in the load definition. The reliability-optimization problem is formulated as the minimization of the volume of the structure subjected to deterministic and probabilistic constraints (related with the dynamic shakedown behavior). The related reliability constraints check is performed by means of a standard Monte Carlo simulation technique. An illustrative example is reported in order to validate the proposed approach and to provide useful practical tools.

KW - Dynamic shakedown; Elastic plastic trusses; Reliability-based design; Stochastic wind loads; Software; Control and Systems Engineering; Computer Science Applications1707 Computer Vision and Pattern Recognition; Computer Graphics and Computer-Aided Design;

UR - http://hdl.handle.net/10447/353646

M3 - Article

SP - -

JO - Structural and Multidisciplinary Optimization

JF - Structural and Multidisciplinary Optimization

SN - 1615-147X

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