Numerical Simulation of Ultrasonic Wave Propagation in FRP using Image-based Modeling

dc.contributor.author	Mizokami, Naoya
dc.contributor.author	Nakahata, Kazuyuki
dc.contributor.author	Ogi, Keiji
dc.contributor.author	Yamawaki, Hisashi
dc.contributor.author	Shiwa, Mitsuharu
dc.date	2018-02-17T22:48:00.000
dc.date.accessioned	2020-06-30T06:53:09Z
dc.date.available	2020-06-30T06:53:09Z
dc.date.issued	2016-01-01
dc.description.abstract	<p>The use of fiber reinforced plastic (FRP) in industrial products and structural materials has been drastically increased in recent years. FRPs are made of a stack of plies, each of which is reinforced by fibers. The ply orientation, ply material, stacking sequence, and number of layers are designed depending on the mechanical requirement. When modeling wave propagation in the FRP for ultrasonic testing (UT), it is important to introduce three-dimensional mesoscopic and microscopic structures because the ultrasonic waves in the FRP are influenced by mechanical interaction between fibers and plastic. Although a numerical approach of full domain is a straightforward method, the discretization of the microscopic structure is not efficient in consideration of the wave length used in the UT. In this study, a finite element method using an image-based modeling [1] is applied to ultrasonic simulation in a carbon FRP (CFRP). Here, the elastic stiffness of a ply is determined with the homogenization method [2], and the three dimensional (3D) mesoscopic structure of the FRP is made by the image-based modeling. 3D finite-element simulations of ultrasonic waves are validated and compared with visualization results obtained with a laser scanning device. Figure 1 shows the results of wave propagation in a CFRP specimen with unidirectionally aligned fibers. The simulation results and measurements showed good agreement with respect to the velocity and spreading of pressure and shear waves.</p>
dc.format.mimetype	application/pdf
dc.identifier	archive/lib.dr.iastate.edu/qnde/2016/abstracts/182/
dc.identifier.articleid	4971
dc.identifier.contextkey	9252102
dc.identifier.s3bucket	isulib-bepress-aws-west
dc.identifier.submissionpath	qnde/2016/abstracts/182
dc.identifier.uri	https://dr.lib.iastate.edu/handle/20.500.12876/61930
dc.language.iso	en
dc.source.bitstream	archive/lib.dr.iastate.edu/qnde/2016/abstracts/182/179_Numerical_Simulation.pdf\|\|\|Fri Jan 14 21:38:22 UTC 2022
dc.subject.disciplines	Acoustics, Dynamics, and Controls
dc.subject.disciplines	Computer-Aided Engineering and Design
dc.subject.disciplines	Materials Science and Engineering
dc.subject.disciplines	Mechanical Engineering
dc.subject.disciplines	Polymer and Organic Materials
dc.title	Numerical Simulation of Ultrasonic Wave Propagation in FRP using Image-based Modeling
dc.type	event
dc.type.genre	event
dspace.entity.type	Publication

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