Results 21 to 30 of about 1,739 (239)

Dynamic Analysis of Thick Plates Including Deep Beams on Elastic Foundations Using Modified Vlasov Model

Shock and Vibration, 2013
Dynamic analysis of foundation plate-beam systems with transverse shear deformation is presented using modified Vlasov foundation model. Finite element formulation of the problem is derived by using an 8-node (PBQ8) finite element based on Mindlin plate ...
Korhan Ozgan
doaj   +1 more source

A 3-NODE PIEZOELECTRIC SHELL ELEMENT FOR LINEAR AND GEOMETRICALLY NONLINEAR DYNAMIC ANALYSIS OF SMART STRUCTURES

Facta Universitatis. Series: Mechanical Engineering, 2017
Composite laminates consisting of passive and multi-functional materials represent a powerful material system. Passive layers could be made of isotropic materials or fiber-reinforced composites, while piezoelectric ceramics are considered here as a multi-
Gil Rama
doaj   +1 more source

Anterior variable-angle locked plating versus tension band wiring of simple and complex patella fractures – a biomechanical investigation

BMC Musculoskeletal Disorders, 2023
Background The aim of this study was to investigate the biomechanical performance of novel anterior variable-angle locking plates versus tension band wiring used for fixation of simple and complex patella fractures.
Karl Stoffel, Ivan Zderic, Torsten Pastor, William Woodburn, Richard Castle, Jessica Penman, Eladio Saura-Sanchez, Boyko Gueorguiev, Christoph Sommer   +8 more
doaj   +1 more source

Estudo mecânico da estabilidade dorsal da osteossíntese intramedular associada à fixação externa (método de Ulson) Mechanical study on dorsal stability of intramedullary osteosynthesis associated with external fixation (Ulson's method)

Revista Brasileira de Ortopedia, 2011
OBJETIVO: Avaliar o método de Ulson de fixação intramedular associado à fixação externa variando a altura do travamento externo dos fios de Kirschner e sem fixação externa.
Trajano Sardenberg, Sérgio Swain Muller, Daniel Ricardo Medeiros, Pablo Luiz Baptistão   +3 more
doaj   +1 more source

The effect of multi-directional stiffness degradation on the non-linear analysis of composite laminates

Science and Engineering of Composite Materials, 2012
A formulation of element-based Lagrangian 9-node shell element based modified first-order shear deformation theory is improved for non-linear behaviors of composite laminates containing matrix cracking.
Han Sung-Cheon, Lee Won-Hong, Park Weon-Tae   +2 more
doaj   +1 more source

Nonlinear Finite Element Analysis of Reinforced Concrete Shells

Tikrit Journal of Engineering Sciences, 2009
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. Kasim , Ala’a T. Ahmed, Abdul-Rahman E. Ibrahim   +2 more
doaj   +1 more source

On the use of an enhanced transverse shear strain shell element for problems involving large rotations

, 2003
This paper presents the extension of a previously developed formulation for shell elements in order to account for non-linear geometric effects, particularly in the presence of large rotations.
Natal Jorge, R. M., C�sar de S�, J. M.A., Cardoso, R. P.R., R. M. Natal Jorge, Gr�cio, J. J.A., Valente, Robert, R. A. Fontes Valente, J. M. A. César de Sá, R. P. R. Cardoso, J. J. A. Grácio   +9 more
core   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

High-Precision Elastoplastic Four-Node Quadrilateral Shell Element

Applied Sciences
In order to enhance the accuracy of calculations for four-node quadrilateral shell elements, modifications have to be made to the computation of the membrane strain rate and transverse shear strain rate.
Mingjiang Tian, Yongtao Wei
doaj   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source