High Strain-Rate Compressive Behavior of Bulk Structural Adhesives: Epoxy and Methacrylate Adhesives

• YOKOYAMA Takashi

  Department of Mechanical Engineering Okayama University of Science

• NAKAI Kenji

  Department of Mechanical Engineering Okayama University of Science

• YATIM Norfazrina Hayati MOHD

  Graduate School of Engineering Okayama University of Science

Abstract

The present paper describes the determination of high strain-rate compressive stress-strain loops for bulk specimens of two different epoxy and methacrylate structural adhesives on the standard split Hopkinson pressure bar with a tapered striker bar. The full compressive stress-strain data including unloading process are obtained over a wide range of strain rates from 10^-3 to 10³/s at room temperature. The effects of strain rate on the initial (secant) modulus, flow stress, dissipation energy and hysteresis loss ratio are studied. The experimental results show that both bulk structural adhesives exhibit highly strain-rate dependent viscoelastic behavior like polymeric materials.

Journal

• Journal of Solid Mechanics and Materials Engineering

  Journal of Solid Mechanics and Materials Engineering 6 (2), 131-143, 2012

  The Japan Society of Mechanical Engineers

Keywords

• Bulk Structural Adhesive
• Compressive Stress-Strain Loop
• Dynamic Viscoelasticity
• Elastic After-Effect
• Hopkinson Bar
• Strain Rate
• Strain Recovery

Details

• CRID: 1390001205265635712
• NII Article ID: 130002072465
• DOI: 10.1299/jmmp.6.131
• BIBCODE: 2012JSMME...6..131Y
• ISSN: 18809871
• Web Site: http://www.jstage.jst.go.jp/article/jmmp/6/2/6_2_131/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed