Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/139241
Title: SCALING EFFECTS FOR DYNAMIC RESPONSES WITH APPLICATION TO BURIED ARCHES SUBJECTED TO INTERNAL BLAST
Authors: YANG YI
ORCID iD:   orcid.org/0000-0002-5007-0942
Keywords: scaling law, non-scaling phenomena, strain rate effect, concrete fracture, blast resistant structure, dynamic response
Issue Date: 25-Aug-2017
Citation: YANG YI (2017-08-25). SCALING EFFECTS FOR DYNAMIC RESPONSES WITH APPLICATION TO BURIED ARCHES SUBJECTED TO INTERNAL BLAST. ScholarBank@NUS Repository.
Abstract: Three common phenomena, namely strain rate effect, concrete fracture and gravitational effect, violate the classical replica scaling law and hence result in model distortions. In this research, the effects of each non-scaling phenomenon on blast loaded buried arch structures are assessed through numerical simulations. For the more prominent sources of scaling errors, the strain rate effect and the concrete fracture, new scaling methods are proposed to rectify the model distortions. A new set of scaling law, strain rate scaling, is developed to reduce the scaling errors due to the strain rate effect in steel material. A simulant concrete scaling method is proposed to resolve the scaling errors caused by concrete fracture. The newly developed scaling methods can be applied to any steel or RC structures subjected to impact and blast loading. The validity and effectiveness of the new scaling methods are verified through numerical analysis and experimental studies.
URI: http://scholarbank.nus.edu.sg/handle/10635/139241
Appears in Collections:Ph.D Theses (Open)

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