Results 81 to 90 of about 71,442 (308)

Finite Element Model Updating of Reinforced Concrete Beams with Honeycomb Damage

open access: yesArchives of Civil Engineering, 2012
Honeycombing is one of the common damage that can occur in concrete structures. Literature and studies on this phenomenon are, however, limited. The objective of this study was to propose a method of detecting honeycombing damage in a reinforced concrete
Ismail Z.
doaj   +1 more source

Finite volume element method with the WSGD formula for nonlinear fractional mobile/immobile transport equations

open access: yesAdvances in Difference Equations, 2020
In this article, a finite volume element method with the second-order weighted and shifted Grünwald difference (WSGD) formula is proposed and studied for nonlinear time fractional mobile/immobile transport equations on triangular grids. By using the WSGD
Jie Zhao   +3 more
doaj   +1 more source

A new continuum based non-linear finite element formulation for modeling of dynamic response of deep water riser behavior [PDF]

open access: yes, 2009
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The principal objective of this investigation is to develop a nonlinear continuum based finite element formulation to examine dynamic response of flexible ...
Hosseini Kordkheili, Seyed Ali
core  

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

Modeling the heat and mass transfer in the pores of the thermal protection carbon-carbon frame during the gas-phase deposition of silicon carbide

open access: yesMATEC Web of Conferences, 2017
This paper is dedicated to the numerical simulation of the gas-phase deposition into the porous carbon-carbon frame for the gradient thermal protection of reentry vehicles.
Reznik Sergey V.   +2 more
doaj   +1 more source

Nonlinear finite element treatment of bifurcation in the post-buckling analysis of thin elastic plates and shells [PDF]

open access: yes, 1995
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The geometrically nonlinear constant moment triangle based on the von Karman theory of thin plates is first described.
Bangemann, Tim, Bangemann, T.R
core  

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi   +5 more
wiley   +1 more source

Finite element modelling of interaction between surface and Darcy flow regimes through soils [PDF]

open access: yes, 2015
The present work deals with the impact of surface flow on hydrodynamic conditions in saturated underground domains. A three dimensional finite element analysis of water flow has been used to obtain the required simulations.
Kaveh, B
core  

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

open access: yesAdvanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim   +3 more
wiley   +1 more source

An Interpolation-Free Cell-Centered Finite Volume Scheme for 2-D Magnetotelluric Forward Modeling on Polygonal Meshes

open access: yesIEEE Access
We present an interpolation-free cell-centered finite-volume method (IFFVM) for two-dimensional magnetotelluric forward modeling on arbitrary polygonal meshes.
Ziyi Ou, Emilio Porcu, Guibin Zhao
doaj   +1 more source

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