Results 81 to 90 of about 3,090,394 (363)
Comprehensive investigation of the viscoelastic properties of PMMA by nanoindentation
Polymer Testing, 2021 Instrumented nanoindentation (NI) was used to examine the viscoelastic properties of poly(methyl methacrylate) (PMMA) as an amorphous polymer model. An evaluation combining adhesive contact and empiric spring–dashpot models has been applied to obtain the
Petra Christöfl +5 more
doaj +1 more source
, 2016 We study a planar thin brittle beam subject to elastic deformations and cracks described in terms of a nonlinear Griffith energy functional acting on $SBV$ deformations of the beam.
Schmidt, Bernd
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Natural frequencies of curved elastic arcs [PDF]
The Journal of the Acoustical Society of America, 1978 A perturbation analysis is presented for calculating the inextensional natural frequencies of curved elastic arcs. Variation of the radius of curvature along the arc length is accounted for by considering the curvature to be a perturbation from a constant curvature, and utilizing the method of strained parameters.
Kudva, Jayanth N. +2 more
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Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study
Advanced Engineering Materials, EarlyView.Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji +5 more
wiley +1 more source
, 1992 This paper deals with the derivation of equations suitable for the computation of elastic curves on the sphere. To this end equations for the main invariants of spherical elastic curves are given. A new method for solving geometrically constraint Differential equations is used to compute the curves for given initial values.
Crouch, Peter E., Brunnett, Guido
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Sequential stochastic identification of elastic constants using Lamb waves and particle filters
Computer Assisted Methods in Engineering and Science, 2017 Sequential stochastic identification of elastic parameters of thin aluminum plates using Lamb waves is proposed. The identification process is formulated as a Bayesian state estimation problem in which the elastic constants are the unknown state ...
Marek Słoński
doaj +1 more source
High-frequency homogenization of zero frequency stop band photonic and phononic crystals
, 2013 We present an accurate methodology for representing the physics of waves, for periodic structures, through effective properties for a replacement bulk medium: This is valid even for media with zero frequency stop-bands and where high frequency phenomena ...
Antonakakis, Tryfon +2 more
core +4 more sources
Advanced Engineering Materials, EarlyView.This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti +5 more
wiley +1 more source
Shock and Vibration, 2015 In the tunnel and underground space engineering, the blasting wave will attenuate from shock wave to stress wave to elastic seismic wave in the host rock. Also, the host rock will form crushed zone, fractured zone, and elastic seismic
Qingwen Li +5 more
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Discrete curve theory in space forms: planar elastic and area-constrained elastic curves
Beiträge zur Algebra und Geometrie / Contributions to Algebra and GeometryAbstract We propose a notion of discrete elastic and area-constrained elastic curves in 2-dimensional space forms. Our definition extends the well-known discrete Euclidean curvature equation to space forms and reflects various geometric properties known from their smooth counterparts.
Tim Hoffmann +2 more
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