Results 91 to 100 of about 35,481 (310)

Research on the Laws of Destructive Patterns and Control Measures of Overlying Rock in High‐Efficiency Large‐Scale Mining Faces

Energy Science &Engineering, EarlyView.
With the advancement of coal mining technology driving the development of working faces toward increased mining heights and extended lengths, the enlargement of face dimensions has led to expanded overlying strata failure zones and intensified ground pressure manifestations. Consequently, traditional methods for determining hydraulic support resistance
Chen Gong, Peilin Gong, Kang Yi, Kaijie Duan, Lizhu Liu, Peng Li   +5 more
wiley   +1 more source

Dynamic anticrack propagation in snow

Nature Communications, 2018
Anticrack propagation in snow results from the mixed-mode failure and collapse of a buried weak layer and can lead to slab avalanches. Here, authors reproduce the complex dynamics of anticrack propagation observed in field experiments using a Material ...
J. Gaume, T. Gast, J. Teran, A. van Herwijnen, C. Jiang   +4 more
doaj   +1 more source

Large deformation dynamic analysis elastoplastic solids by the finite element method I. total lagrangian formulation.

Vietnam Journal of Mechanics, 1987
An effective finite element formulation based upon the total Lagrangian desert potion is presen ted for nonlinear dynamic problems in deformable solids. Continuum is considered with large displacement, large strain and material elastoplasticity.
Tran Duong Hien
doaj   +1 more source

The elastoplasticity behavior of wire in inhomogeneous woven metal mesh [PDF]

, 2019
This paper discusses the plastic behavior of wires in metal mesh for discussing the structure of woven warp and weft with their inhomogeneous and homogeneous by using finite element method (FEM).
Miyaki, Hikaru, Sakuma, Atsushi, Zhang, Jianliang   +2 more
core  

Development of Stresses in Cohesionless Poured Sand

, 1998
The pressure distribution beneath a conical sandpile, created by pouring sand from a point source onto a rough rigid support, shows a pronounced minimum below the apex (`the dip').
Bagster D. F., Bouchaud J.-P., D. Muir Wood, Dantu P., Evesque P., G. S. Boulton, Gudehus G., Hummel F. H., J. M. Rotter, J. P. Wittmer, J.-P. Bouchaud, Janssen H. A., Jokati T., Kolymbas D., Lee I. F., M. E. Cates, P. Claudin, Smid J., Wittmer J. P.   +18 more
core   +2 more sources

Study on the Energy Evolution and Stability of Roadway Surrounding Rock Under the “Simultaneous Mining–Driving” Condition

Energy Science &Engineering, EarlyView.
Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang, Peilin Gong, Kang Yi, Guang Wen, Libin Bai, Lizhu Liu, Chen Gong, Peng Li   +7 more
wiley   +1 more source

Pressure-Driven Interface Evolution in Solid-State Lithium Metal Batteries

Cell Reports Physical Science, 2020
Summary: The development of solid-state batteries has encountered a number of problems due to the complex interfacial contact conditions between lithium (Li) metal and solid electrolytes (SEs).
Xin Zhang, Q. Jane Wang, Katharine L. Harrison, Scott A. Roberts, Stephen J. Harris   +4 more
doaj   +1 more source

Study on Deformation Law of Crossing Layer Drilling Superimposed Floor Roadway

Energy Science &Engineering, EarlyView.
Based on deformation law of crossing layer drilling superimposed floor roadway, low dip angle drilling is particularly susceptible to complications such as borehole blockage and collapse. ABSTRACT Floor extraction roadway crossing layer drilling is a pivotal strategy for gas control in areas prone to coal and gas outbursts.
Xiao Liu, Bo Li, Jiawei Xie, Xiaoming Ni, Shaoren Wei, Chengtao Yang, Yubo Zhang, Haixiao Lin, Wei Zhao, Tao Wang   +9 more
wiley   +1 more source

Isogeometric analysis of linear isotropic and kinematic hardening elastoplasticity

Vietnam Journal of Mechanics, 2017
Material nonlinearity is of great importance in many engineering problems. In this paper, we exploit NURBS-based isogeometric approach in solving materially nonlinear problems, i.e. elastoplastic problems.
Khuong D. Nguyen, Minh N. Nguyen, Hoa V. Cong, H. Nguyen-Xuan   +3 more
doaj   +1 more source

Numerical simulation based on FEM/MLS coupling for solid mechanics [PDF]

, 2013
This paper presents the development of Meshless Methods based on the weighted least squares approximation (MLS) [1,3,14] to solve 2D mechanical problems.
Ghozzi, Y., Labergere, C., Villon, P.
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