Evaluation of fracture characteristics of polyethylene blown films using the Essential Work of Fracture (EWF) with variable film orientations

Ilhyun Kim, Byoung Ho Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, essential work of fracture (EWF) tests for five polyethylene blown films are conducted. The fracture toughness of those samples was evaluated based on test results. The effect of the film orientation on the fracture toughness of materials was evaluated. The work calculated from load-displacement curves obtained from double edge-notched tension (DENT) specimens was analyzed as the ligament increases. In the case of MDPE, a sudden rise of the fracture toughness and the slope is evident at the crack angle from 30 to 60 degree, and LLDPE case, the variation of the observed slope of high angle (60-90 degree) cracks is not that much different than that of low angle (0-30 degree) cracks. The slope of the EWF test, which indicates the energy dissipation, yields the reduction of compliance during crack propagation.

Original languageEnglish
Title of host publication70th Annual Technical Conference of the Society of Plastics Engineers 2012, ANTEC 2012
Pages803-808
Number of pages6
Publication statusPublished - 2012
Event70th Annual Technical Conference of the Society of Plastics Engineers 2012, ANTEC 2012 - Orlando, FL, United States
Duration: 2012 Apr 22012 Apr 4

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings
Volume1

Other

Other70th Annual Technical Conference of the Society of Plastics Engineers 2012, ANTEC 2012
CountryUnited States
CityOrlando, FL
Period12/4/212/4/4

Keywords

  • Essential work of fracture (EWF)
  • Film orientation
  • Polyethylene blown film
  • Tear

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics

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  • Cite this

    Kim, I., & Choi, B. H. (2012). Evaluation of fracture characteristics of polyethylene blown films using the Essential Work of Fracture (EWF) with variable film orientations. In 70th Annual Technical Conference of the Society of Plastics Engineers 2012, ANTEC 2012 (pp. 803-808). (Annual Technical Conference - ANTEC, Conference Proceedings; Vol. 1).