Results 11 to 20 of about 124,528 (252)

The strain-based beam finite elements in multibody dynamics [PDF]

, 2007
We present a strain-based finite-element formulation for the dynamic analysis of flexible elastic planar multibody systems, composed of planar beams. We consider finite displacements, rotations and strains.
Gams, Matija, Planinc, Igor, Saje, Miran
core   +1 more source

Nodal Integration Technique in Meshless Method

IOSR Journal of Mechanical and Civil Engineering, 2014
Abstract: In this paper an integration technique is resented. In 1985, G.R. Lui and coworkers used this technique to integrate weak form formulation over line support in 1D case or over support-Domain in 2D case in Finite Element and Meshless methods. Present paper shows the results calculus by a Fortran Code, written in our laboratory, in both cases ...
Ahmed MJIDILA, Salah Eddine JALAL, Lahbib BOUSSHINE, Zakaria EL LASKAOUI   +3 more
openaire   +1 more source

Addressing Integration Error for Polygonal Finite Elements Through Polynomial Projections: A Patch Test Connection [PDF]

, 2013
Polygonal finite elements generally do not pass the patch test as a result of quadrature error in the evaluation of weak form integrals. In this work, we examine the consequences of lack of polynomial consistency and show that it can lead to a ...
Paulino, Glaucio H., Talischi, Cameron
core   +1 more source

Vanishing density of states in weakly disordered Weyl semimetals [PDF]

, 2018
The Brillouin zone of the clean Weyl semimetal contains points at which the density of states (DoS) vanishes. Previous work suggested that below a certain critical concentration of impurities this features is preserved including in the presence of ...
Altland, Alexander, Buchhold, Michael, Diehl, Sebastian   +2 more
core   +3 more sources

Kernel sheaf on integral nodal curves

Forum Mathematicum
Abstract In this article we study the stability of Kernel sheaf obtained from a generating subspace of rank one torsion-free sheaf on an integral nodal curve.
Basu, Suratno, Dan, Krishanu, Rath, Aanjaneya   +2 more
openaire   +2 more sources

A cell-based smoothed finite element method for kinematic limit analysis [PDF]

, 2010
This paper presents a new numerical procedure for kinematic limit analysis problems, which incorporates the cell-based smoothed finite element method with second-order cone programming.
Anderheggen, Andersen, Andersen, Andersen, Andersen, Belytschko, Belytschko, Belytschko, Bordas, Bottero, Capsoni, Chaaba, Chen, Chen, Chen, Chen, Christiansen, Christiansen, Ciria, Dai, Flanagan, Gaydon, Gross-Weege, Huh, Huh, Jiang, Krabbenhoft, Le, Le, Le, Le, Liu, Liu, Liu, Liu, Liu, Liu, Lyamin, Makrodimopoulos, Makrodimopoulos, Munoz, Nagtegaal, Nguyen, Nguyen-Thanh, Nguyen-Thoi, Nguyen-Xuan, Nguyen-Xuan, Nguyen-Xuan, Nguyen-Xuan, Nguyen-Xuan, Prandtl, Sloan, Smith, Sze, Tin-Loi, Vicente da Silva, Wang, Yoo, Zouain, Zouain   +59 more
core   +1 more source

A hysteretic multiscale formulation for nonlinear dynamic analysis of composite materials [PDF]

, 2014
This article has been made available through the Brunel Open Access Publishing Fund.A new multiscale finite element formulation is presented for nonlinear dynamic analysis of heterogeneous structures.
A Chopra, AK Kaw, C Fuggini, C Hu, CT Herakovich, D Bournas, DR Cook, E. N. Chatzi, F Casadei, G Powell, GA Pavliotis, H Zhang, HM Hilber, HS Park, HW Zhang, HW Zhang, I Babuška, I Babuška, J Lubliner, J Lv, J Simo, J Simo, J Xu, JE Andrade, K Markov, K Washizu, K Worden, KJ Bathe, M Nithyadharan, M Tootkaboni, MM Aghdam, OC Zienkiewicz, OS Bursi, P Kanouté, P Sengupta, Q Yu, R Azizi, R Senthivel, RH Cherng, S Erlicher, S Erlicher, S Nemat-Naser, S. P. Triantafyllou, T Belytschko, T Zohdi, T Zohdi, TI Zohdi, TT Baber, TY Hou, VD Nguyen, WJ Harvey, X He, XF Xu, Y Efendiev, Y Efendiev, YR Kim   +55 more
core   +3 more sources

Adaptive smoothed FEM for forming simulations [PDF]

, 2012
FEMsimulation of large deformations as occur in metal forming processes is usually accompanied with highly distorted meshes. This leads first to a reduction of accuracy and later to loss of convergence when implicit solvers are used.
Boogaard, A.H. van den, Quak, W.
core   +1 more source

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

Aging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu, Latif Adams, Eunice Ampem‐Danso, Justice Kumi, Abigail Aning, Fatima Hamidu, Mustapha Abdul Mumin Mohammed, Ayuba Nii Darku Ankrah, Seth Kwabena Amponsah   +8 more
wiley   +1 more source

A Sparse and High-Order Accurate Line-Based Discontinuous Galerkin Method for Unstructured Meshes

, 2012
We present a new line-based discontinuous Galerkin (DG) discretization scheme for first- and second-order systems of partial differential equations.
Persson, Per-Olof
core   +1 more source