New technique to characterize the fiber/matrix interphase properties under high strain rates

M. Tanoglu; S. H. McKnight; G. R. Palmese; J. W. Gillespie

doi:10.1016/S1359-835X(00)00070-1

New technique to characterize the fiber/matrix interphase properties under high strain rates

M. Tanoglu, S. H. McKnight, G. R. Palmese, J. W. Gillespie

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

41 Scopus citations

Abstract

Dynamic interphase-loading apparatus (DILA) has been developed to directly characterize the fiber/matrix interphase properties of composites under high loading rates. This apparatus uses a micro-mechanical method (micro-indentation) that is based on the debonding of a fiber from the matrix at the interphase region. Displacement rates up to 3000 μm/s that cause deformation of the interphase under high shear strain rates were obtained using the fast expansion capability of piezoelectric actuators (PZT). Transient force and fiber displacement for a specific displacement rate is measured during the test. The data are reduced to apparent average interphase shear strength and energy absorbed during debonding and frictional sliding during the micro-debonding process. An E-glass-fiber/epoxy-amine interphase was tested under various loading rates to demonstrate the capability of the test apparatus. Test results showed that the strength and energy-absorbing capability of the E-glass/epoxy-amine interphase are sensitive to loading rate.

Original language	English (US)
Pages (from-to)	1127-1138
Number of pages	12
Journal	Composites Part A: Applied Science and Manufacturing
Volume	31
Issue number	10
DOIs	https://doi.org/10.1016/S1359-835X(00)00070-1
State	Published - Oct 2000
Externally published	Yes

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Mechanics of Materials

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10.1016/S1359-835X(00)00070-1

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title = "New technique to characterize the fiber/matrix interphase properties under high strain rates",

abstract = "Dynamic interphase-loading apparatus (DILA) has been developed to directly characterize the fiber/matrix interphase properties of composites under high loading rates. This apparatus uses a micro-mechanical method (micro-indentation) that is based on the debonding of a fiber from the matrix at the interphase region. Displacement rates up to 3000 μm/s that cause deformation of the interphase under high shear strain rates were obtained using the fast expansion capability of piezoelectric actuators (PZT). Transient force and fiber displacement for a specific displacement rate is measured during the test. The data are reduced to apparent average interphase shear strength and energy absorbed during debonding and frictional sliding during the micro-debonding process. An E-glass-fiber/epoxy-amine interphase was tested under various loading rates to demonstrate the capability of the test apparatus. Test results showed that the strength and energy-absorbing capability of the E-glass/epoxy-amine interphase are sensitive to loading rate.",

author = "M. Tanoglu and McKnight, {S. H.} and Palmese, {G. R.} and Gillespie, {J. W.}",

note = "Funding Information: The authors gratefully acknowledge the support of the US Army Research Laboratory (ARL) under the Composite Materials Research Collaborative Program (CMRCP) and the US Army Research Office under the Defense University Research Instrumentation Program (DURIP). The authors also acknowledge Dr L. Adzima of Owens Corning Corporation for providing the glass fibers, Dr S. Ziaee and Dr V.M. Harik of Center for Composite Materials at University of Delaware for insightful discussions.",

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AU - Palmese, G. R.

AU - Gillespie, J. W.

N1 - Funding Information: The authors gratefully acknowledge the support of the US Army Research Laboratory (ARL) under the Composite Materials Research Collaborative Program (CMRCP) and the US Army Research Office under the Defense University Research Instrumentation Program (DURIP). The authors also acknowledge Dr L. Adzima of Owens Corning Corporation for providing the glass fibers, Dr S. Ziaee and Dr V.M. Harik of Center for Composite Materials at University of Delaware for insightful discussions.

PY - 2000/10

Y1 - 2000/10

N2 - Dynamic interphase-loading apparatus (DILA) has been developed to directly characterize the fiber/matrix interphase properties of composites under high loading rates. This apparatus uses a micro-mechanical method (micro-indentation) that is based on the debonding of a fiber from the matrix at the interphase region. Displacement rates up to 3000 μm/s that cause deformation of the interphase under high shear strain rates were obtained using the fast expansion capability of piezoelectric actuators (PZT). Transient force and fiber displacement for a specific displacement rate is measured during the test. The data are reduced to apparent average interphase shear strength and energy absorbed during debonding and frictional sliding during the micro-debonding process. An E-glass-fiber/epoxy-amine interphase was tested under various loading rates to demonstrate the capability of the test apparatus. Test results showed that the strength and energy-absorbing capability of the E-glass/epoxy-amine interphase are sensitive to loading rate.

AB - Dynamic interphase-loading apparatus (DILA) has been developed to directly characterize the fiber/matrix interphase properties of composites under high loading rates. This apparatus uses a micro-mechanical method (micro-indentation) that is based on the debonding of a fiber from the matrix at the interphase region. Displacement rates up to 3000 μm/s that cause deformation of the interphase under high shear strain rates were obtained using the fast expansion capability of piezoelectric actuators (PZT). Transient force and fiber displacement for a specific displacement rate is measured during the test. The data are reduced to apparent average interphase shear strength and energy absorbed during debonding and frictional sliding during the micro-debonding process. An E-glass-fiber/epoxy-amine interphase was tested under various loading rates to demonstrate the capability of the test apparatus. Test results showed that the strength and energy-absorbing capability of the E-glass/epoxy-amine interphase are sensitive to loading rate.

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New technique to characterize the fiber/matrix interphase properties under high strain rates

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