The essential work of plane stress ductile fracture of linear polyethylenes

Y. ‐W Mai; B. Cotterell; R. Horlyck; G. Vigna

doi:10.1002/pen.760271106

The essential work of plane stress ductile fracture of linear polyethylenes

Y. ‐W Mai, B. Cotterell, R. Horlyck, G. Vigna

Research output: Journal article publication › Journal article › Academic research › peer-review

150 Citations (Scopus)

Abstract

The specific essential works of plane stress ductile tearing of several high‐ and ultrahigh‐molecular‐weight polyethylenes were obtained from deeply edge‐notched tension specimens, with either single or double notches, by extrapolating the straight line relationship between the total specific fracture work and ligament length to zero ligament. Provided the fracture morphologies of the torn ligament are not widely different, the specific essential work (w_e) is a material property dependent on thickness but independent of specimen geometry. The specific essential fracture work also can be identified with J_c the critical value of the J‐integral along a contour immediately bordering the fracture process zone at the crack tip. There is good agreement between the experimental we values and theoretical J_c estimates for these polyethylene materials.

Original language	English
Pages (from-to)	804-809
Number of pages	6
Journal	Polymer Engineering & Science
Volume	27
Issue number	11
DOIs	https://doi.org/10.1002/pen.760271106
Publication status	Published - Jun 1987
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/pen.760271106

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abstract = "The specific essential works of plane stress ductile tearing of several high‐ and ultrahigh‐molecular‐weight polyethylenes were obtained from deeply edge‐notched tension specimens, with either single or double notches, by extrapolating the straight line relationship between the total specific fracture work and ligament length to zero ligament. Provided the fracture morphologies of the torn ligament are not widely different, the specific essential work (we) is a material property dependent on thickness but independent of specimen geometry. The specific essential fracture work also can be identified with Jc the critical value of the J‐integral along a contour immediately bordering the fracture process zone at the crack tip. There is good agreement between the experimental we values and theoretical Jc estimates for these polyethylene materials.",

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AB - The specific essential works of plane stress ductile tearing of several high‐ and ultrahigh‐molecular‐weight polyethylenes were obtained from deeply edge‐notched tension specimens, with either single or double notches, by extrapolating the straight line relationship between the total specific fracture work and ligament length to zero ligament. Provided the fracture morphologies of the torn ligament are not widely different, the specific essential work (we) is a material property dependent on thickness but independent of specimen geometry. The specific essential fracture work also can be identified with Jc the critical value of the J‐integral along a contour immediately bordering the fracture process zone at the crack tip. There is good agreement between the experimental we values and theoretical Jc estimates for these polyethylene materials.

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The essential work of plane stress ductile fracture of linear polyethylenes

Abstract

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