Results 71 to 80 of about 1,739 (239)

Finite element modeling for buckling analysis of hybrid piezoelectric beam under electromechanical loads

Latin American Journal of Solids and Structures
A one-dimensional finite element model for buckling analysis of hybrid piezoelectric beams under electromechanical load is presented in this work. The coupled zigzag theory is used for making the model.
Najeeb ur Rahman, M. Naushad Alam
doaj   +1 more source

Enhanced transverse shear strain shell formulation applied to large elasto-plastic deformation problems [PDF]

, 2005
In this work, a previously proposed Enhanced Assumed Strain (EAS) finite element formulation for thin shells is revised and extended to account for isotropic and anisotropic material non-linearities.
R. M. N. Jorge, M. P. L. Parente, J. J. Grácio, R. A. Fontes Valente, J. M. A. César de Sá   +4 more
core   +1 more source

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

Advanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff, Simon Holzer, Stefania Konstantinidi, Yoan Civet, Yves Perriard   +4 more
wiley   +1 more source

Elementos finitos generalizados na análise estática de placas e cascas [PDF]

, 2003
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia MecânicaDesde a década passada, os métodos sem malha são considerados uma alternativa na simulação numérica de problemas, onde a ...
Garcia, Oscar Alfredo
core  

Coupling of finite element and meshfree methods be for locking-free analysis of shear-deformable beams and plates

, 2011
Purpose: The purpose of this paper is to develop a computational technique to couple finite element and meshfree methods for locking-free analysis of shear deformable beams and plates, and to impose the boundary conditions directly when the matching ...
M.A. Bradford, Emre Erkmen, Bradford, MA, Erkmen, E   +3 more
core   +1 more source

Advances in Electroactive Liquid Crystal Elastomers for Intelligent Robotics and Electronics

Advanced Robotics Research, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) integrate molecular anisotropy with electrical functionality to enable programmable actuation and reconfigurable electronics. This review classifies eLCEs into robotic actuators and adaptive electronics, summarizes key actuation mechanisms, and highlights fabrication strategies that bridge materials to ...
Kavita Ramesh Rathod, Sena Chon, Jae Hyuk Hwang, Sung Hyuk Park, Woohwa Lee, Joonmyung Choi, Shi Hyeong Kim, Seung Hwan Ko, Changsoon Choi, Seon Jeong Kim, Dong‐Gyun Kim, Habeom Lee, Kyung Gook Cho, Woon‐Hong Yeo, Hyun Kim   +14 more
wiley   +1 more source

Nonlinear Finite Element Analysis of Reinforced Concrete Shells

Tikrit Journal of Engineering Sciences, 2013
This investigation is to develop a numerical model suitable for nonlinear analysis of reinforced concrete shells. A nine-node Lagrangian element Figure (1) with enhanced shear interpolation will be used in this study.
Mustafa K. Ahmed, Alaa T. Ahmed, Abdul-Rahman E. Ibrahim   +2 more
doaj  

Field-consistent and variationally correct representation of transverse shear strains in the nine-noded plate element

, 1992
We present a biquadratic Lagrangian plate bending element with consistent fields for the constrained transverse shear strain functions. A technique involving expansion of the strain interpolations in terms of Legendre polynomials is used to redistribute ...
Ramamurty, T. S., Dattaguru, B, Ramamurty, TS, Prathap, Gangan, Prathap, G., Ramamurthy, TS, Prathap, G, Naganarayana, B. P., Dattaguru, B., Naganarayana, BP   +9 more
core   +1 more source

Redox‐Dependent Chaperoning of GBF1 Condensates Regulates Seed Germination in Arabidopsis

Advanced Science, EarlyView.
In dormant seeds (low ROS), GBF1 forms liquid condensates to repress the germination gene CathB3, and the chaperone GIP1 maintains condensate liquidity and repressive activity. Upon imbibition (high ROS), ROS oxidize GIP1 during germination, impairing its chaperone function.
Yunying Wang, Xiaofeng Fang
wiley   +1 more source

On Locking-free Methods for Isogeometric Large Deformation Analysis of Geometrically Exact 3D Timoshenko Beams [PDF]

, 2015
In this thesis the geometrically exact 3D shear-flexible beam model is discretized with the Lagrangian and the NURBS basis functions, and has been used as a basis to develop a family of locking-free NURBS-based elements.
Helgedagsrud, Tore Andreas
core   +1 more source