ESTIMATION OF GRANULAR FLOW IMPACT FORCE ON RIGID WALL USING MATERIAL POINT METHOD

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

3 Sitaatiot (Scopus)

Abstrakti

Landslides and avalanches cause loss of lives, as well as generate significant economic cost. Protection barriers help reduce the impact of such events. However, the design of the barriers requires the prediction of the landslide flow trajectory and the estimation of impact force. Material Point Method appears to have great potential for estimating those, since it can account for large displacement nature of sediment flows and their nonlinear behaviour. Therefore, it may be able to capture the complex interaction of landslides or avalanches with the ground and structures.

This study focuses on simulating granular flows with Generalized Interpolation Material Point Method. The calculations use a constitutive model inspired by the Bagnold theory of granular flow to model sand landslide / avalanche experiment with sand treated as a linear elasto-plastic material. Shown simulations aim was to replicate the experiment. In particular, the paper focuses on estimation of the impact force of sand flow on a fixed rigid wall. Such force estimation is a first step to validate the Generalized Interpolation Material Point Method for use as a tool for the design of barriers defending against landslides and avalanches.
AlkuperäiskieliEnglanti
Otsikko5th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2017
ToimittajatPeter Wriggers, Manfred Bischoff, Eugenio Oñate, D.R.J. Owen, Tarek Zohdi
KustantajaInternational Center for Numerical Methods in Engineering (CIMNE)
Sivut648-658
Sivumäärä11
ISBN (elektroninen)978-84-946909-7-6
TilaJulkaistu - syysk. 2017
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaInternational Conference on Particle-Based Methods - Leibniz Universität Hannover , Hannover, Saksa
Kesto: 26 syysk. 201728 syysk. 2017
Konferenssinumero: 5
http://congress.cimne.com/particles2017/frontal/default.asp
http://congress.cimne.com/particles2017/frontal/ProgIntro.asp

Conference

ConferenceInternational Conference on Particle-Based Methods
LyhennettäPARTICLES
Maa/AlueSaksa
KaupunkiHannover
Ajanjakso26/09/201728/09/2017
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