High Strain-Rate Compressive Stress-Strain Loops for Structural Adhesive

Takashi Yokoyama; Kenji Nakai; Norfazrina Hayati Mohd Yatim

doi:10.4028/www.scientific.net/AMM.83.130

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 83High Strain-Rate Compressive Stress-Strain Loops...

High Strain-Rate Compressive Stress-Strain Loops for Structural Adhesive

Abstract:

The high strain-rate compressive stress-strain loops for bulk specimens of an epoxy structural adhesive are determined on the standard split Hopkinson pressure bar. The compressive stress-strain data including unloading curves are obtained over a wide range of strain rates from 10^-3 to 10³/s. The effects of strain rate on the initial (secant) modulus, flow stress, dissipation energy and hysteresis loss ratio are discussed. The experimental results show that the bulk structural adhesive exhibits dynamic viscoelastic behavior like polymers.

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Periodical:

Applied Mechanics and Materials (Volume 83)

Pages:

130-135

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.83.130

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Online since:

July 2011

Authors:

Takashi Yokoyama, Kenji Nakai, Norfazrina Hayati Mohd Yatim

Keywords:

Bulk Structural Adhesive, Compressive Stress-Strain Loop, Energy Dissipation, Hopkinson Bar, Hysteresis Loss Ratio, Initial Modulus, Strain Rate

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