Material point method analysis of fluid–structure interaction in geohazards

Xinpo Li (), Jun Yao, Yulian Sun and Yong Wu ()
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Xinpo Li: CAS
Jun Yao: CAS
Yulian Sun: CAS
Yong Wu: CAS

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2022, vol. 114, issue 3, No 44, 3425-3443

Abstract: Abstract This paper presents a monolithic method for modeling of fluid–structure interaction problems involved in geohazards encountering with countermeasures using material point method (MPM). The basic concept of MPM is introduced firstly, and then the constitutive models used in geohazards–structure interaction problems, including elastic model, Drucker–Prager elastoplastic model, Newtonian fluid and Bingham fluid model and their implementations in coupling with MPM are presented. Three benchmark problems, including dam break of water column and impact on elastic obstacle, dry granular sand impact on rigid structure, and viscous debris flows flowing down a drainage chute with and without oblique symmetrical sills, are examined. Comparison of the results with those of the laboratory tests has verified the reliability of MPM approach on the fluid–structure interaction problems involved in geohazards.

Keywords: Landslides; Debris flow; Fluid–structure interaction; Material point method (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s11069-022-05526-1

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