Dynamic buckling of partially-sway frames with varying stiffness using catastrophe theory

Fasoulakis, Zacharias C.; Avraam, Tassos P.; Raftoyiannis, Ioannis G.

doi:10.1016/j.ijnonlinmec.2014.10.002

Cited by 9 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since then, the application of catastrophe theory has flourished in natural and social sciences (Poston and Stewart 2014), such as ecology (Roopnarine 2008;Wang et al 2011;Piyaratne et al 2013), environmental research (Mostafa 2020), hydrology (Ghorbani et al 2010), physics (Kostomarov et al 2012), mechanics (Fasoulakis et al 2015), engineering (She et al 2020), the building and construction industry (Xiaoping et al 2010), transportation (Papacharalampous and Vlahogianni 2014), psychology (Stamovlasis and Vaiopoulou 2017;Lv et al 2017), political sciences (Weidlich and Huebner 2008), medical research (Chen et al 2014), education (Stamovlasis and Tsaparlis 2012), management research (Alessandri et al 2018;Guastello et al 2019), conflict resolution (Chow et al 2012), and safety research and prevention (Park and Abdel-Aty 2011;Wang et al 2017;Chen et al 2018), among other applications.…”

Section: Catastrophe Theory Literature Reviewmentioning

confidence: 99%

Fundamental and speculative components of the cryptocurrency pricing dynamics

Kukačka

Krištoufek

2023

Financ Innov

View full text Add to dashboard Cite

The driving forces behind cryptoassets’ price dynamics are often perceived as being dominated by speculative factors and inherent bubble-bust episodes. Fundamental components are believed to have a weak, if any, role in the price-formation process. This study examines five cryptoassets with different backgrounds, namely Bitcoin, Ethereum, Litecoin, XRP, and Dogecoin between 2016 and 2022. It utilizes the cusp catastrophe model to connect the fundamental and speculative drivers with possible price bifurcation characteristics of market collapse events. The findings show that the price and return dynamics of all the studied assets, except for Dogecoin, emerge from complex interactions between fundamental and speculative components, including episodes of price bifurcations. Bitcoin shows the strongest fundamentals, with on-chain activity and economic factors driving the fundamental part of the dynamics. Investor attention and off-chain activity drive the speculative component for all studied assets. Among the fundamental drivers, the analyzed cryptoassets present their coin-specific factors, which can be tracked to their protocol specifics and are economically sound.

show abstract

Section: Catastrophe Theory Literature Reviewmentioning

confidence: 99%

Fundamental and speculative components of the cryptocurrency pricing dynamics

Kukačka

Krištoufek

2023

Financ Innov

View full text Add to dashboard Cite

show abstract

“…As an effective tool for studying discontinuity, singularity, and instability of systems, CT has been widely used in mining engineering, geotechnical engineering, and other underground mining activities [34][35][36][37][38]. Chen et al categorized buckling instability of piles as a catastrophe failure and applied CT to the analysis of buckling stability.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Cusp Catastrophic Model for Vertical Stability of Drilling Shaft Lining

Liu

Cheng

Rong

et al. 2020

Advances in Civil Engineering

View full text Add to dashboard Cite

The vertical stability analysis of the drilling shaft lining has long been a technical problem in the construction of underground space development projects. And the critical depth of vertical stability was a key parameter to judge its stability. To determine this parameter, a simple and practical computational method would be helpful. In this paper, a new vertical stability analysis model of shaft lining structure based on catastrophe theory was proposed. In accordance with the mechanical analysis, the catastrophic instability mechanics was analyzed and a new critical depth of drilling shaft lining was deduced. Further, the rationality and feasibility of the catastrophic calculation model was proved by the numerical simulation results in a case. And the sensitivity of the influencing parameters was also analyzed, which provided theoretic reference for optimization design and guiding security construction. The results implied that catastrophic calculation model, as an alternative method for shaft stability analysis, could be applied to theoretical analysis and guiding engineering practice in the study of drilling shaft lining’s vertical stability.

show abstract

“…However, as the span length increases more advanced analyses are needed to improve safety and reliability of these structures, reproducing accurately all sources of nonlinearities involved in the bridge components. Such task becomes much C important especially for new or advanced bridge configurations such as the ones proposed in the framework of cablestayed suspension self-anchored schemes, in which, in order to guarantee the reliability of such configurations, it is important to investigate collapse behavior and load carrying capacity of the bridge [3,4]. In the literature, many research efforts are developed to analyze the influence of geometric and material nonlinearities on the structural behavior of cable supported bridges, especially for cable-stayed configurations.…”

Section: Introductionmentioning

confidence: 99%

A numerical study on the structural integrity of self-anchored cable-stayed suspension bridges

Lonetti¹,

Pascuzzo²

2016

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

A generalized numerical model for predicting the structural integrity of self-anchored cable-stayed suspension bridges considering both geometric and material nonlinearities is proposed. The bridge is modeled by means of a 3D finite element approach based on a refined displacement-type finite element approximation, in which geometrical nonlinearities are assumed in all components of the structure. Moreover, nonlinearities produced by inelastic material and second order effects in the displacements are considered for girder and pylon elements, which combine gradual yielding theory with CRC tangent modulus concept. In addition, for the elements of the suspension system, i.e. stays, hangers and main cable, a finite plasticity theory is adopted to fully evaluate both geometric and material nonlinearities. In this framework, the influence of geometric and material nonlinearities on the collapse bridge behavior is investigated, by means of a comparative study, which identifies the effects produced on the ultimate bridge behavior of several sources of bridge nonlinearities involved in the bridge components. Results are developed with the purpose to evaluate numerically the influence of the material and geometric characteristics of self-anchored cable-stayed suspension bridges with respect also to conventional bridge based on cablestayed or suspension schemes.

show abstract

Dynamic buckling of partially-sway frames with varying stiffness using catastrophe theory

Cited by 9 publications

References 13 publications

Fundamental and speculative components of the cryptocurrency pricing dynamics

Fundamental and speculative components of the cryptocurrency pricing dynamics

Analysis of Cusp Catastrophic Model for Vertical Stability of Drilling Shaft Lining

A numerical study on the structural integrity of self-anchored cable-stayed suspension bridges

Contact Info

Product

Resources

About