Reliable convergence for dynamic linearly-elastic/perfectly plastic systems analyzed with different integration methods

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  • University of Tehran
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Original languageEnglish
Pages2009-2016
Number of pages8
Publication statusPublished - 2003
EventTenth International Congress on Sound and Vibration - Stockholm, Sweden
Duration: 7 Jul 200310 Jul 2003

Conference

ConferenceTenth International Congress on Sound and Vibration
Country/TerritorySweden
CityStockholm
Period7 Jul 200310 Jul 2003

Abstract

Analyzing the semi-discretized equations of motion has a fundamental role in structural dynamic analysis. Though time integration is the widely accepted approach for these analyses, the stability and accuracy of the responses computed by time integration are yet unpredictable. Considering linearly-elastic/perfectly-plastic dynamic systems, recently two independent methods for preserving responses' convergence is presented. In this paper these two methods are first reviewed. Then implementing a recent round off reduction technique, a reliable method for preserving responses' convergence is attained. Implementing the new method for analyzing a simple linearly-elastic/perfectly- plastic dynamic system with several different integration methods reveals that for the systems under consideration, the proposed method preserves responses' convergence, regardless of the integration method.

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Reliable convergence for dynamic linearly-elastic/perfectly plastic systems analyzed with different integration methods. / Soroushian, Aram; Farjoodi, Jamshid; Wriggers, Peter.
2003. 2009-2016 Paper presented at Tenth International Congress on Sound and Vibration, Stockholm, Sweden.

Research output: Contribution to conferencePaperResearchpeer review

Soroushian, A, Farjoodi, J & Wriggers, P 2003, 'Reliable convergence for dynamic linearly-elastic/perfectly plastic systems analyzed with different integration methods', Paper presented at Tenth International Congress on Sound and Vibration, Stockholm, Sweden, 7 Jul 2003 - 10 Jul 2003 pp. 2009-2016.
Soroushian, A., Farjoodi, J., & Wriggers, P. (2003). Reliable convergence for dynamic linearly-elastic/perfectly plastic systems analyzed with different integration methods. 2009-2016. Paper presented at Tenth International Congress on Sound and Vibration, Stockholm, Sweden.
Soroushian A, Farjoodi J, Wriggers P. Reliable convergence for dynamic linearly-elastic/perfectly plastic systems analyzed with different integration methods. 2003. Paper presented at Tenth International Congress on Sound and Vibration, Stockholm, Sweden.
Soroushian, Aram ; Farjoodi, Jamshid ; Wriggers, Peter. / Reliable convergence for dynamic linearly-elastic/perfectly plastic systems analyzed with different integration methods. Paper presented at Tenth International Congress on Sound and Vibration, Stockholm, Sweden.8 p.
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abstract = "Analyzing the semi-discretized equations of motion has a fundamental role in structural dynamic analysis. Though time integration is the widely accepted approach for these analyses, the stability and accuracy of the responses computed by time integration are yet unpredictable. Considering linearly-elastic/perfectly-plastic dynamic systems, recently two independent methods for preserving responses' convergence is presented. In this paper these two methods are first reviewed. Then implementing a recent round off reduction technique, a reliable method for preserving responses' convergence is attained. Implementing the new method for analyzing a simple linearly-elastic/perfectly- plastic dynamic system with several different integration methods reveals that for the systems under consideration, the proposed method preserves responses' convergence, regardless of the integration method.",
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AU - Farjoodi, Jamshid

AU - Wriggers, Peter

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ER -

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