Determine mechanical properties of particulate composite using ultrasound spectroscopy

Junru Wu; Christopher Layman; Sanjeeva Murthy; Ruey Bin Yang

doi:10.1016/j.ultras.2006.05.140

Determine mechanical properties of particulate composite using ultrasound spectroscopy

Junru Wu, Christopher Layman, Sanjeeva Murthy, Ruey Bin Yang

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

It is known that microscopic spherulite growth plays an important role in macroscopical properties such as elastic moduli of some semicrystalline polymers. Ultrasonic spectroscopy can be used to quantitatively determine the role of spherulites. As a first approximation, spherulitic polymers are modeled as a material with spherical inclusions in an amorphous matrix. This two-phase composite model is then physically realized by embedding glass micro-spheres in an epoxy. The dynamic mechanical properties of these composites are experimentally determined by measuring their acoustic properties such as phase velocity and attenuation. Acoustic scattering theories are then applied to this model to test their predictive capabilities for the real composite's mechanical properties.

Original language	English (US)
Pages (from-to)	e793-e800
Journal	Ultrasonics
Volume	44
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/j.ultras.2006.05.140
State	Published - Dec 22 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Acoustics and Ultrasonics

Keywords

Mechanical properties
Multiple scattering
Polymer
Ultrasound spectroscopy

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10.1016/j.ultras.2006.05.140

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title = "Determine mechanical properties of particulate composite using ultrasound spectroscopy",

abstract = "It is known that microscopic spherulite growth plays an important role in macroscopical properties such as elastic moduli of some semicrystalline polymers. Ultrasonic spectroscopy can be used to quantitatively determine the role of spherulites. As a first approximation, spherulitic polymers are modeled as a material with spherical inclusions in an amorphous matrix. This two-phase composite model is then physically realized by embedding glass micro-spheres in an epoxy. The dynamic mechanical properties of these composites are experimentally determined by measuring their acoustic properties such as phase velocity and attenuation. Acoustic scattering theories are then applied to this model to test their predictive capabilities for the real composite's mechanical properties.",

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author = "Junru Wu and Christopher Layman and Sanjeeva Murthy and Yang, {Ruey Bin}",

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T1 - Determine mechanical properties of particulate composite using ultrasound spectroscopy

AU - Wu, Junru

AU - Layman, Christopher

AU - Murthy, Sanjeeva

AU - Yang, Ruey Bin

PY - 2006/12/22

Y1 - 2006/12/22

N2 - It is known that microscopic spherulite growth plays an important role in macroscopical properties such as elastic moduli of some semicrystalline polymers. Ultrasonic spectroscopy can be used to quantitatively determine the role of spherulites. As a first approximation, spherulitic polymers are modeled as a material with spherical inclusions in an amorphous matrix. This two-phase composite model is then physically realized by embedding glass micro-spheres in an epoxy. The dynamic mechanical properties of these composites are experimentally determined by measuring their acoustic properties such as phase velocity and attenuation. Acoustic scattering theories are then applied to this model to test their predictive capabilities for the real composite's mechanical properties.

AB - It is known that microscopic spherulite growth plays an important role in macroscopical properties such as elastic moduli of some semicrystalline polymers. Ultrasonic spectroscopy can be used to quantitatively determine the role of spherulites. As a first approximation, spherulitic polymers are modeled as a material with spherical inclusions in an amorphous matrix. This two-phase composite model is then physically realized by embedding glass micro-spheres in an epoxy. The dynamic mechanical properties of these composites are experimentally determined by measuring their acoustic properties such as phase velocity and attenuation. Acoustic scattering theories are then applied to this model to test their predictive capabilities for the real composite's mechanical properties.

KW - Mechanical properties

KW - Multiple scattering

KW - Polymer

KW - Ultrasound spectroscopy

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DO - 10.1016/j.ultras.2006.05.140

M3 - Article

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SP - e793-e800

JO - Ultrasonics

JF - Ultrasonics

IS - SUPPL.

ER -

Determine mechanical properties of particulate composite using ultrasound spectroscopy

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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