Numerical simulation of steel member response under strong cyclic loading

Varelis, Georgios; Βαρέλης, Γεώργιος

doi:10.12681/eadd/30156

Cited by 7 publications

(13 citation statements)

References 54 publications

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“…Under extreme loading conditions, such as the high repeated incursions in the nonlinear zone that the imposed displacement in this case causes, elbows exhibit two different failure modes. These are either significant cross-sectional ovalization or local buckling, as reported by the experimental work described in Sobel and Newman [23], [24], Dhalla [25] and Greenstreet [26], Tan et al [27], Shalaby and Younan [28] and Suzuki and Nasu [29] for monotonic bending moments and Yahiaoui et al [30], Slagis [31] and Fujiwaka et al [32] for cyclic loading, and from the work of Karamanos et al [33], [34], Pappa et al [35], Varelis et al [36], [37].…”

Section: Resultsmentioning

confidence: 85%

Validation on large scale tests of a new hardening–softening law for the Barcelona plastic damage model

Barbu

Martı́nez

Oller

et al. 2015

International Journal of Fatigue

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Abstract. This paper presents the results of finite element simulations made on a bent pipe subjected to an in-plane variable cyclic displacement combined with internal pressure. The results of the numerical analyses will be compared to experimental ones. The constitutive model used for the simulation of Ultra Low Cycle Fatigue (ULCF) loading and the hardening-softening law used are only briefly touched upon. The monotonic behavior of a large diameter pipe, as obtained from the constitutive model proposed, is also shown and compared to experimental results under two different loading scenarios. Special emphasis is put on the correlation between the failure mode and the internal pressure applied.

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Section: Resultsmentioning

confidence: 85%

Validation on large scale tests of a new hardening–softening law for the Barcelona plastic damage model

Barbu

Martı́nez

Oller

et al. 2015

International Journal of Fatigue

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“…Codes and Standards are available for the strain based design approach; see [18] for reference. With the strain-based approach, maximum strain in the pipes is calculated and compared with specified strain-limits related to limit states usually identified with buckling or ovalization of the pipes [24], [25]. Unfortunately, this approach needs the calculation of the seismic response in the non-linear range.…”

Section: Verification Methodsmentioning

confidence: 99%

Main Issues on the Seismic Design of Industrial Piping Systems and Components

Paolacci

Reza

Bursi

et al. 2013

Volume 8: Seismic Engineering

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A significant number of damages in piping systems and components during recent seismic events have been reported in literature which calls for a proper seismic design of these structures. Nevertheless, there exists an inadequacy of proper seismic analysis and design rules for a piping system and its components. Current seismic design Codes are found to be over conservative and some components, e.g., bolted flange joints, do not have guidelines for their seismic design. Along this line, this paper discusses about the main issues on the seismic analysis and design of industrial piping systems and components. Initially, seismic analysis and component design of refinery piping systems are described. A review of current design approaches suggested by European (EN13480:3) and American (ASME B31.3) Codes is performed through a Case Study on a piping system. Some limits of available Codes are identified and a number of critical aspects of the problem e. g., dynamic interaction between pipes and rack, correct definition of the response factor and strain versus stress approach, are illustrated. Finally, seismic performance of bolted flange joints based on the results of experimental investigations carried out by the University of Trento, Italy, will be discussed.

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“…European research program INDUSE 2009-2012 [17] has been an important contribution towards this purpose. Combining large-scale experimental work with extensive numerical simulations, design guidelines and recommendations have been developed for the structural integrity of industrial tanks, pressure vessels and piping under strong seismic action [18] Despite the above works on the mechanical behavior of tanks and pipes under strong seismic loading, the introduction of these industrial components into a performance-based design (PBD) framework, described in [24] and [25], is an open issue. Recently, a few attempts have been reported on the application of performance design concepts in the seismic design of industrial facilities [26] [32].…”

Section: Introductionmentioning

confidence: 99%

Performance Criteria for Liquid Storage Tanks and Piping Systems Subjected to Seismic Loading

Vathi

Karamanos

Kapogiannis

et al. 2017

Journal of Pressure Vessel Technology

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In this paper, performance criteria for the seismic design of industrial liquid storage tanks and piping systems are proposed, aimed at introducing those industrial components into a performance-based design (PBD) framework. Considering “loss of containment” as the ultimate damage state, the proposed limit states are quantified in terms of local quantities obtained from a simple and efficient earthquake analysis. Liquid storage tanks and the corresponding principal failure modes (elephant's foot buckling, roof damage, base plate failure, anchorage failure, and nozzle damage) are examined first. Subsequently, limit states for piping systems are presented in terms of local strain at specific piping components (elbows, Tees, and nozzles) against ultimate strain capacity (tensile and compressive) and low-cycle fatigue. Modeling issues for liquid storage tanks and piping systems are also discussed, compared successfully with available experimental data, and simple and efficient analysis tools are proposed, toward reliable estimates of local strain demand. Using the above reliable numerical models, the proposed damage states are examined in two case studies: (a) a liquid storage tank and (b) a piping system, both located in areas of high seismicity.

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Numerical simulation of steel member response under strong cyclic loading

Abstract: does not constitute in any way an acceptance of the views of the author by the said academic organization (L. 5343/32, art. 202, § 2).

Cited by 7 publications

References 54 publications

Validation on large scale tests of a new hardening–softening law for the Barcelona plastic damage model

Validation on large scale tests of a new hardening–softening law for the Barcelona plastic damage model

Main Issues on the Seismic Design of Industrial Piping Systems and Components

Performance Criteria for Liquid Storage Tanks and Piping Systems Subjected to Seismic Loading

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