Energy absorption mechanism of thermoplastic fiber-reinforced plastics under impact loading using split-hopkinson pressure-bar method

Ayuta Nambu*, Shogo Adachi, Tomoya Yabu, Yuji Ishitsuka, Atushi Hosoi, Hiroyuki Kawada

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The energy absorbing performance in the progressive failure of glass long-fiber-reinforced polyamide was evaluated by using the split Hopkinson pressure-bar method. An impact compression test of glass long-fiber-reinforced polyamide was performed from –30 °C to 90 °C, and the temperature-independent energy absorbing performance was confirmed only for the progressive failure mode. To clarify this phenomenon, compression tests, interlaminar compressive shear tests and mode-I fracture-toughness tests were conducted under static and impact conditions. The compression strength and the shear strength of all specimens decreased with an increase in temperature. The toughness improved with temperature. In addition to the mechanical tests, failure-mode analysis was performed by using a three-dimensional X-ray microscope to clarify the absorbing mechanism. From the above, it was concluded that the temperature-independent energy absorbing performance results from a balance of these mechanical properties against the temperature change.

本文言語English
ホスト出版物のタイトルPolymer Science and Engineering
編集者Katsuyuki Kida
出版社Trans Tech Publications Ltd
ページ47-52
ページ数6
ISBN(印刷版)9783035716382
DOI
出版ステータスPublished - 2020
イベント3rd International Conference on Composite Material, Polymer Science and Engineering, CMPSE 2019 - Bangkok, Thailand
継続期間: 2019 10 242019 10 25

出版物シリーズ

名前Key Engineering Materials
858 KEM
ISSN(印刷版)1013-9826
ISSN(電子版)1662-9795

Conference

Conference3rd International Conference on Composite Material, Polymer Science and Engineering, CMPSE 2019
国/地域Thailand
CityBangkok
Period19/10/2419/10/25

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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