Results 41 to 50 of about 15,324 (102)

Explicit‐Implicit Material Point Method for Dense Granular Flows With a Novel Regularized µ(I) Model

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 7, Page 3256-3273, May 2026.
ABSTRACT The material point method (MPM) is widely employed to simulate granular flows. Although explicit time integration is favored in most current MPM implementations for its simplicity, it cannot rigorously incorporate the incompressible µ(I)‐rheology, an efficient model ubiquitously adopted in other particle‐based numerical methods. While operator‐
Hang Feng, Zhen‐Yu Yin
wiley   +1 more source

How Does Heterogeneity Control Strain Localization Patterns in High‐Porosity Rocks?

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract We aim to explore how heterogeneous porosity and grain size contribute to strain localization patterns in highly porous rocks based on phase‐field simulations. The strain localization patterns, including shear bands, dilatation bands, and compaction bands, are commonly observed in geological field studies and laboratory experiments.
Yunteng Wang, Chi Zhang, Philipp Braun, Xuan Kang, Wei Wu   +4 more
wiley   +1 more source

Emergence of Diverse Failure Patterns in Weathering‐Induced Landslides: Insights From Particle Finite Element Simulations

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 1, January 2026.
Abstract Weathering is a fundamental driver of landslide evolution over geological timescales. Despite its ubiquity and importance, quantifying how weathering drives the progressive destabilization of rock slopes remains challenging. In this work, we develop a unified computational framework based on the particle finite element method to investigate ...
Liang Wang, Simon Loew, Xin Gu, Qinghua Lei   +3 more
wiley   +1 more source

Evaluation of cut slope stability in the Lesser Himalaya of Nepal

Geologija
A spatial inventory of cut slopes in the central and western Lesser Himalaya of Nepal was prepared and characterised to evaluate their stability. The stability of these cut slopes is governed by the geotechnical properties of rock/soil together with ...
Krishna Kumar Shrestha, Kabi Raj Paudyal, Dinesh Pathak, Alessandro Franci, Prem Bahadur Thapa   +4 more
doaj   +1 more source

Multiphase and Multiphysics Modelling of Rainfall Induced Failure in an Experimental Hillslope

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 8, Page 1931-1947, 10 June 2025.
ABSTRACT Annual precipitation and its intensity have increased worldwide since the start of the 20th century and represent two weather and climate change indicators related to rainfall‐induced landslides. Although these landslides can occur in a very short time, the hydro‐mechanical conditions that precede them can take several hours or days to develop.
Maria Lazari, Matteo Camporese, Lorenzo Sanavia   +2 more
wiley   +1 more source

A SPH Model Bridging Solid‐ and Fluid‐Like Behaviour in Granular Materials

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 2, Page 738-755, 10 February 2025.
ABSTRACT We propose a smoothed particle hydrodynamics (SPH) model bridging the gap between solid‐ and fluid‐like behaviour observed in granular materials. The key innovation of the proposed approach lies in the decomposition of the stress gradient into rate‐independent and rate‐dependent parts, which are governed by the hypoplastic and μ(I)$\mu (I ...
Yadong Wang, Wei Wu
wiley   +1 more source

Fracture Analysis of 316L Specimens Fabricated via Material Extrusion Additive Manufacturing: Influence of Building Orientation and Notch Acuity

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 1, Page 511-530, January 2025.
ABSTRACT Three‐point bending tests were performed on notched specimens extracted from cuboids of 316L stainless steel produced via material extrusion additive manufacturing. The cuboids were printed vertically and horizontally on the printing platform to account for the building orientation effect on the mechanical performance.
Saveria Spiller, Sara Couto, Nima Razavi
wiley   +1 more source

Numerical analysis of downward progressive landslides in long natural slopes with sensitive clay

Journal of Rock Mechanics and Geotechnical Engineering
Landslides occurring in sensitive clay often result in widespread destruction, posing a significant risk to human lives and property due to the substantial decrease in undrained shear strength during deformation.
Yujia Zhang, Xue Zhang, Xifan Li, Aindra Lingden, Jingjing Meng   +4 more
doaj   +1 more source

A two‐phase volume of fluid approach to model rigid‐perfectly plastic granular materials

International Journal for Numerical Methods in Fluids, Volume 96, Issue 12, Page 1813-1829, December 2024.
A rigid‐perfectly plastic Bingham model is presented, and its implementation into an FV‐VoF procedure is validated for cohesive and noncohesive materials featuring different angles of repose. A close agreement of the predicted soil surface with experimental data is obtained for noncohesive material, and the failure lines, calculated from the introduced
W. Düsterhöft‐Wriggers, S. Schubert, T. Rung   +2 more
wiley   +1 more source

A hybrid Lagrangian–Eulerian particle finite element method for free‐surface and fluid–structure interaction problems

International Journal for Numerical Methods in Engineering, Volume 125, Issue 5, 15 March 2024.
Abstract The dynamics of fluid flows with free surfaces and interacting with highly deformable structures is a complex problem, attracting considerable attention. The Particle Finite Element Method (PFEM) is one of the various numerical methods recently proposed in the literature to simulate this type of problems. It is a mesh‐based Lagrangian approach,
Cheng Fu, Massimiliano Cremonesi, Umberto Perego   +2 more
wiley   +1 more source