Results 21 to 30 of about 2,526,799 (245)

Discrete exterior geometry approach to structure-preserving discretization of distributed-parameter port-Hamiltonian systems [PDF]

, 2011
This paper addresses the issue of structure-preserving discretization of open distributed-parameter systems with Hamiltonian dynamics. Employing the formalism of discrete exterior calculus, we introduce a simplicial Dirac structure as a discrete analogue
Seslija, Marko,, Scherpen, Jacquelien M.A.,, van der Schaft, Abraham, van der Schaft, Abraham; id_orcid, Arjan Van Der Schaft, Jacquelien M. A. Scherpen, van der Schaft, Arjan, Scherpen, Jacquelien M.A., Seslija, Marko, van der Schaft, Arjan ; id_orcid, Marko Seslija, Schaft, Arjan van der,   +11 more
core   +3 more sources

Investigation of a boundary simulation of continuity using the discrete solid element method

Advances in Mechanical Engineering, 2019
The discrete solid element method is an efficient numerical method that simulates the large deformation, strong material nonlinearity, fracture, and dynamic problems of continuity.
Baochen Zhu, Ruoqiang Feng
doaj   +1 more source

Identification of numerical model parameters of tunnel lining in non-cohesive soil [PDF]

Biuletyn Wojskowej Akademii Technicznej, 2018
The paper discusses identification of numeric model parameters of tunnel lining in a soil medium according to the discrete element method. An author’s program based on the discrete element method was used. Laboratory tests were conducted to determine the
Paweł Szklennik
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ABOUT SOLUTION OF MULTIPOINT BOUNDARY PROBLEMS OF THREE-DIMENSIONAL STRUCTURAL ANALYSIS WITH THE USE OF COMBINED APPLICATION OF FINITE ELEMENT METHOD AND DISCRETE-CONTINUAL FINITE ELEMENT METHOD. PART 1: FORMULATION AND BASIC PRINCIPLES OF APPROXIMATION

International Journal for Computational Civil and Structural Engineering, 2018
The distinctive paper is devoted to formulation and basic principles of approximation of multipoint boundary problem of static analysis of three-dimensional structure with the use of combined application of finite element method and discrete-continual ...
Pavel A. Akimov, Oleg A. Negrozov
doaj   +1 more source

Hybrid Finite-Discrete Element Modelling of Excavation Damaged Zone Formation Process Induced by Blasts in a Deep Tunnel

Advances in Civil Engineering, 2020
A brief literature review of numerical studies on excavation damage zone (EDZ) is conducted to compare the main numerical methods on EDZ studies. A hybrid finite-discrete element method is then proposed to model the EDZ induced by blasts.
Huaming An, Hongyuan Liu, Haoyu Han
doaj   +1 more source

Rod-Bonded Discrete Element Method

Graphical Models
The Bonded Discrete Element Method (BDEM) has raised interests in the graphics community in recent years because of its good performance in fracture simulations.
Kangrui Zhang, Han Yan, Jia-Ming Lu, Bo Ren   +3 more
doaj   +1 more source

Three-dimensional discrete element simulation of the runaway vehicle deceleration process on the arrester bed of truck escape ramps

Science Progress, 2020
Due to imperfect design norms and guidelines for China’s truck escape ramp, previous studies have not been able to reflect the effect of wheel subsidence process on the deceleration of runaway vehicles.
Pinpin Qin, Fengmin Wu, Da Wu, Shunfeng Zhang, Daming Huang   +4 more
doaj   +1 more source

A Dual-Horizon Peridynamics–Discrete Element Method Framework for Efficient Short-Range Contact Mechanics

Modelling
Short-range forces enable peridynamics to simulate impact, yet it demands a computationally expensive contact search and includes no intrinsic damping.
Kinan Bezem, Sina Haeri, Stephanie TerMaath   +2 more
doaj   +1 more source

Modeling the evolution of natural cliffs subject to weathering. 2, Discrete element approach [PDF]

, 2011
The evolution of slopes subjected to weathering has been modeled by assuming Mohr-Coulomb behavior and by using a numerical approach based on the discrete element method (DEM).
G. B. Crosta, Crosta, Giovanni B., Utili, Stefano, S. Utili   +3 more
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Study on Sliding Friction Coefficient in Block Element Method Based on Experimental Method

Applied Sciences
The mechanics and motion behavior of granular materials affect the production and life of human beings. In order to study the influence of the sliding friction coefficients corresponding to different contact types in the block discrete element method on ...
Pengcheng Liu, Jun Liu, Yue Wang
doaj   +1 more source