They can be of either computational or experimental nature and can be both of fundamental basis or applications with a special emphasis on the following aspects:

• Material point method, formulation and applications

• Other computational methods for large deformations in geomechanics and fluid mechanics, amongst many others e.g. SPH, DEM/LBM, PFEM, ALE, CEL, UL–FEM, CFD

• Coupling of geomechanics and fluid mechanics concepts

• Constitutive models for large deformations, dynamic problems, cyclic loading, unsaturated behaviour

• Soil–water interaction and transition, modelling of sedimentation and erosion, sediment transport and deposition, coastal erosion and scouring

• Modelling of water–soil boundary layers under currents and waves, turbulence modelling

Experiments, benchmarks and case studies:

• Physical modelling of large deformation engineering problems at field-, model- or laboratory-scale

• Forensic engineering: (back-)analysis of large deformation failure events and natural hazards

• Case studies and benchmark solutions for large deformation problems

Applications in geotechnical and hydraulic engineering:

• Slope liquefaction and breaching, dredging processes, jetting, cutting

• Installation of geocontainers, stability of breakwaters, wave attack on structures

• Submarine slides, turbulent flow slides

• Landslides (weather-, earthquake-, man-induced), debris flows, avalanches

• Dike stability (e.g. macrostability, piping, erosion) and dike reinforcement

• Installation problems, e.g. pile installation

• Soil investigation, e.g. pile load testing, CPT simulation, pore pressure dissemination testing

• Impact problems and stability problems, e.g. boreholes, sinkholes