A microscopic study on local strain rate sensitivity of polypropylene syntactic foam with microballoons

Enyang Wang, Masaki Omiya

研究成果: Conference contribution

抄録

The local strain rate sensitivity of polypropylene syntactic foams with polymer microballoons in the relative density from 0.5 to 0.8 is studied at the nominal strain rate ranged from 10-1 to 102 s -1. Johnson-Cook law is employed to show the viscoelastic properties of polymer syntactic foams. A microscopic investigation reveals that the strain rate sensitivity and the effect of localised deformations can be observed at the higher strain rate (50-100 s-1). The local deformation mechanism is different in different strain rate regimes due to the effect of local strain rate. At strain rates below 10 s-1, cell-face stretching is the dominant deformation mechanism. At strain rates from 50 s-1 to 100 s-1, cell-face stretching and cell-edge bending are the main deformation mechanism.

本文言語English
ホスト出版物のタイトルMaterials Science and Engineering Applications
ページ1280-1284
ページ数5
DOI
出版ステータスPublished - 2011
イベント2011 International Conference on Materials Science and Engineering Applications, ICMSEA 2011 - Xi'an, China
継続期間: 2011 1 152011 1 16

出版物シリーズ

名前Advanced Materials Research
160-162
ISSN(印刷版)1022-6680

Other

Other2011 International Conference on Materials Science and Engineering Applications, ICMSEA 2011
国/地域China
CityXi'an
Period11/1/1511/1/16

ASJC Scopus subject areas

  • 工学(全般)

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