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On the applicability of linear elastic fracture mechanics to environmental stress cracking of low-density polyethylene

Journal Article


Abstract


  • The primary aim of this work was to re-examine the range of applicability of linear elastic fracture mechanics (LEFM) to environmental stress cracking of low-density polyethylene. By use of a number of specimen types and a range of specimen dimensions and loads it is shown that the K I-c relationship is unique only at low K Is. The material studied showed a region of constant crack velocity which was not caused by plasticity effects or the failure of LEFM. However, crack arrest, which occurred at high K Is or loads, was shown to be caused by ductile yielding causing the crack to blunt. �� 1986 Chapman and Hall Ltd.

UOW Authors


  •   Brown, Hugh (external author)

Publication Date


  • 1986

Citation


  • Tonyali, K., & Brown, H. R. (1986). On the applicability of linear elastic fracture mechanics to environmental stress cracking of low-density polyethylene. Journal of Materials Science, 21(9), 3116-3124. doi:10.1007/BF00553345

Scopus Eid


  • 2-s2.0-0022785320

Web Of Science Accession Number


Start Page


  • 3116

End Page


  • 3124

Volume


  • 21

Issue


  • 9

Place Of Publication


Abstract


  • The primary aim of this work was to re-examine the range of applicability of linear elastic fracture mechanics (LEFM) to environmental stress cracking of low-density polyethylene. By use of a number of specimen types and a range of specimen dimensions and loads it is shown that the K I-c relationship is unique only at low K Is. The material studied showed a region of constant crack velocity which was not caused by plasticity effects or the failure of LEFM. However, crack arrest, which occurred at high K Is or loads, was shown to be caused by ductile yielding causing the crack to blunt. �� 1986 Chapman and Hall Ltd.

UOW Authors


  •   Brown, Hugh (external author)

Publication Date


  • 1986

Citation


  • Tonyali, K., & Brown, H. R. (1986). On the applicability of linear elastic fracture mechanics to environmental stress cracking of low-density polyethylene. Journal of Materials Science, 21(9), 3116-3124. doi:10.1007/BF00553345

Scopus Eid


  • 2-s2.0-0022785320

Web Of Science Accession Number


Start Page


  • 3116

End Page


  • 3124

Volume


  • 21

Issue


  • 9

Place Of Publication