Integrated Load Optimization of Elastic‐plastic Axisymmetric Plates at Shakedown

Venskus, A.; Kalanta, Stanislovas; Atkočiūnas, Juozas; Ulitinas, Tomas

doi:10.3846/jcem.2010.22

Cited by 14 publications

(11 citation statements)

References 13 publications

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“…Todėl lygčių sistema (10)-(11) vienareikšmiškai nustato konstrukcijos įtemptąjį ir deformuotąjį būvį. Pagrindinių lygčių pusiausviraisiais baigtiniais elementais sistema tampa jungiamąja grandimi ir tampriai plastiniams kevalams skaičiuoti (Kalanta 1996;Venskus et al 2010;Pham 2003;Atkočiūnas 2011).…”

Section: Matematiniai Uždavinių Modeliaiunclassified

Analysis of Ultimate Limit State of Spherical Shell / Sferinio Kevalo Saugos Ribinio Būvio Analizė

Ulitinas

Kalanta

Atkočiūnas

2013

Engineering Structures and Technologies

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Santrauka.Darbe pateikiama simetriškai apkrauto lėkšto sferinio kevalo saugos ribinio būvio analizė. Konstrukcijos fizikiniai parametrai, forma, matmenys, apkrova ir jos pridėjimo vieta ir kryptis yra žinomi. Nagrinėjamas tamprusis ir idealiai tamprus plastinis kevalas, pasitelkiant ekstreminį energetinį principą randami tikrieji įtempių ir deformacijų būviai. Tampraus būvio analizės uždavinio matematinis modelis formuluojamas taikant virtualių jėgų principą, o ribinės apkrovos nustatymo uždavinio matematinis modelis formuluojamas kaip netiesinis matematinio programavimo uždavinys.Reikšminiai žodžiai: lėkštasis sferinis kevalas, pusiausvirieji baigtiniai elementai, matematinis modelis, plastiškumo kriterijus, saugos ribinis būvis. Nuoroda į šį straipsnį: Ulitinas, T.; Kalanta, S.; Atkočiūnas, J. 2013. Sferinio kevalo saugos ribinio būvio analizė, Engineering Structures and Technologies 5(2): 69-75. http://dx.

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Section: Matematiniai Uždavinių Modeliaiunclassified

Analysis of Ultimate Limit State of Spherical Shell / Sferinio Kevalo Saugos Ribinio Būvio Analizė

Ulitinas

Kalanta

Atkočiūnas

2013

Engineering Structures and Technologies

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“…time and cost) of the construction method. Additional information on the fundamentals of multi-objective optimization and GA can be found in the related references (Certa et al 2011;Elbehairy et al 2006;Elegbede, Adjallah 2003;Geem 2010;Kandil et al 2010;Konak et al 2006;Moradi et al 2011;Sayin, Kouvelis 2005;Šešok, Belevicius 2008;Šešok et al 2010;Šostak, Vakrinien 2011;Venskus et al 2010). In this study, a software program called 'OptQuest' (an optimization tool that runs with a software program called 'Crystal Ball') was used to introduce the GA.…”

Section: Introduction Of the Genetic Algorithmmentioning

confidence: 99%

An Integrated Multi-Objective Optimization Model for Solving the Construction Time-Cost Trade-Off Problem

Koo

Hong

Kim

2015

Journal of Civil Engineering and Management

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Abstract. As construction projects become larger and more diversified, various factors such as time, cost, quality, environment, and safety that need to be considered make it very difficult to make the final decision. This study was conducted to develop an integrated Multi-Objective Optimization (iMOO) model that provides the optimal solution set based on the concept of the Pareto front, through the following six steps: (1) problem statement; (2) definition of the optimization objectives; (3) establishment of the data structure; (4) standardization of the optimization objectives; (5) definition of the fitness function; and (6) introduction of the genetic algorithm. To evaluate the robustness and reliability of the proposed iMOO model, a case study on the construction time-cost trade-off problem was analyzed in terms of effectiveness and efficiency. The results of this study can be used: (1) to assess more than two optimization objectives, such as the initial investment cost, operation and maintenance cost, and CO 2 emission trading cost; (2) to take advantage of the weights as the real meanings; (3) to evaluate the four types of fitness functions; and (4) to expand into other areas such as the indoor air quality, materials, and energy use.

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“…The paper (Venskus et al 2010) delivers an elasticplastic axisymmetric steel bending plate subjected to the repeated variable load. The worked out solution to the problem of load optimization at shakedown is complicated because the stress-strain state of dissipative systems (e.g.…”

Section: This Special Issue Of the Journal Of Civil Engineering And Mmentioning

confidence: 99%

Stability and Ductility of Structures

Kvedaras

2010

Journal of Civil Engineering and Management

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Integrated Load Optimization of Elastic‐plastic Axisymmetric Plates at Shakedown

Cited by 14 publications

References 13 publications

Analysis of Ultimate Limit State of Spherical Shell / Sferinio Kevalo Saugos Ribinio Būvio Analizė

Analysis of Ultimate Limit State of Spherical Shell / Sferinio Kevalo Saugos Ribinio Būvio Analizė

An Integrated Multi-Objective Optimization Model for Solving the Construction Time-Cost Trade-Off Problem

Stability and Ductility of Structures

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