The mechanical response of a syntactic polyurethane foam at low and high rates of strain

A. Pellegrino; V. L. Tagarielli; R. Gerlach; N. Petrinic

doi:10.1016/j.ijimpeng.2014.08.005

The mechanical response of a syntactic polyurethane foam at low and high rates of strain

A. Pellegrino, V. L. Tagarielli, R. Gerlach, N. Petrinic

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

68 Citations (SciVal)

Abstract

Quasi-static and dynamic experiments are conducted to characterise the mechanical response of a syntactic foam comprising hollow glass microballoons in a polyurethane matrix. Stress versus strain histories are measured in uniaxial tension and compression as well as in pure shear, at strain rates ranging from 10^-4 to 10³ s^-1, via non-standard experimental techniques; quasi-static in-situ tests are conducted to visualise the deformation mechanisms in tension and compression. The material displays a pronounced sensitivity to the imposed strain rate and relatively high tensile and shear ductility at both low and high strain rates. A tension/compression asymmetry is displayed in quasi-static tests but is lost at high rates of strain.

Original language	English
Pages (from-to)	214-221
Number of pages	8
Journal	International Journal of Impact Engineering
Volume	75
DOIs	https://doi.org/10.1016/j.ijimpeng.2014.08.005
Publication status	Published - Jan 2015

Bibliographical note

Publisher Copyright:
© 2014 Elsevier Ltd. All rights reserved.

Funding

Funders	Funder number
Engineering and Physical Sciences Research Council	EP/G042586/1

Keywords

Fracture
High strain rate
Mechanical properties
Polyurethane
Syntactic foam

ASJC Scopus subject areas

Civil and Structural Engineering
Automotive Engineering
Aerospace Engineering
Safety, Risk, Reliability and Quality
Ocean Engineering
Mechanics of Materials
Mechanical Engineering

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10.1016/j.ijimpeng.2014.08.005

Cite this

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abstract = "Quasi-static and dynamic experiments are conducted to characterise the mechanical response of a syntactic foam comprising hollow glass microballoons in a polyurethane matrix. Stress versus strain histories are measured in uniaxial tension and compression as well as in pure shear, at strain rates ranging from 10-4 to 103 s-1, via non-standard experimental techniques; quasi-static in-situ tests are conducted to visualise the deformation mechanisms in tension and compression. The material displays a pronounced sensitivity to the imposed strain rate and relatively high tensile and shear ductility at both low and high strain rates. A tension/compression asymmetry is displayed in quasi-static tests but is lost at high rates of strain.",

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AU - Gerlach, R.

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AB - Quasi-static and dynamic experiments are conducted to characterise the mechanical response of a syntactic foam comprising hollow glass microballoons in a polyurethane matrix. Stress versus strain histories are measured in uniaxial tension and compression as well as in pure shear, at strain rates ranging from 10-4 to 103 s-1, via non-standard experimental techniques; quasi-static in-situ tests are conducted to visualise the deformation mechanisms in tension and compression. The material displays a pronounced sensitivity to the imposed strain rate and relatively high tensile and shear ductility at both low and high strain rates. A tension/compression asymmetry is displayed in quasi-static tests but is lost at high rates of strain.

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The mechanical response of a syntactic polyurethane foam at low and high rates of strain

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

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