Results 161 to 170 of about 12,709 (210)
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Axial stress determination using highly nonlinear solitary waves
The Journal of the Acoustical Society of America, 2018This article presents a nondestructive evaluation (NDE) method to infer the neutral temperature and the axial stress in thick beams. The method relies on the propagation of highly nonlinear solitary waves generated at one end of a chain of spherical particles in a dry point contact with the beam to be evaluated.
Amir, Nasrollahi, Piervincenzo, Rizzo
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Coupling effect between highly nonlinear solitary waves and composite plate with matrix cracking
Composite Structures, 2022 Yan Wang +3 more
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Laser induced highly nonlinear solitary waves for structural NDE
SPIE Proceedings, 2010This paper describes the generation and propagation of highly nonlinear solitary waves (HNSWs) in a chain of steel beads excited by means of laser pulses. Ablative generation of mechanical stress was induced on the bead at one end of the chain in order to enhance the amplitude of the stress waves generated. Compared to the use of a mechanical striker,
Xianglei Ni +2 more
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Highly nonlinear solitary waves-based sensor for monitoring concrete
SPIE Proceedings, 2011This paper describes the application of a novel actuator/sensor technology for monitoring concrete at early age. A device is designed to generate and detect highly nonlinear solitary waves (HNSWs) in a chain of steel beads. Two experiments were conducted. In the first experiment, the propagation of the HNSWs in the chain was recorded. In particular,
Xianglei Ni +3 more
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Highly nonlinear solitary waves in chains of hollow spherical particles
Granular Matter, 2013We study the dynamic response of one- dimensional granular chains composed of uniform hollow spheres excited by an impulse, and we observe the formation and propagation of highly nonlinear solitary waves. We find that the dynamics of these solitary waves are different from the solitary waves forming in chains composed of uniform solid spheres, because ...
Ngo, Duc +3 more
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Highly Nonlinear Solitary Waves to Estimate Orientation and Degree of Anisotropy in Rocks
Materials Evaluation, 2021This paper delves into the use of highly nonlinear solitary waves for the nondestructive identification and characterization of anisotropy in rocks. The nondestructive testing approach proposed expands upon a technique developed recently by some of the authors for the nondestructive characterization of engineering materials and structures.
Hoda Jalali +3 more
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Weak bond detection in composites using highly nonlinear solitary waves
Smart Materials and Structures, 2017We experimentally investigate a diagnostic technique for identifying a weak bond in composites using highly nonlinear solitary waves (HNSWs). We set up a one-dimensional chain of granular crystals, consisting of spherical particles with nonlinear interactions, to generate HNSWs.
Taru Singhal +3 more
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Highly dispersive solitary wave solutions of perturbed nonlinear Schrödinger equations
Applied Mathematics and Computation, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Highly Nonlinear Solitary Waves for the Inspection of Adhesive Joints
Experimental Mechanics, 2012In this paper we propose the use of highly nonlinear solitary waves (HNSWs) to monitor the curing process of an adhesive layer utilized to bond two aluminum sheets, and to inspect an adhesively-bonded aluminum lap-joint. HNSWs are mechanical waves that can form and travel in highly nonlinear systems, such as a chain of spherical particles where they ...
X. Ni, P. Rizzo
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