| DOI | Resolve DOI: https://doi.org/10.1016/0032-3861(88)90170-X |
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| Author | Search for: Vu-Khanh, T.1 |
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| Affiliation | - National Research Council Canada
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| Format | Text, Article |
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| Subject | ductile polymers; impact fracture parameters; nylon 66; blend |
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| Abstract | This paper presents a new model for the impact fracture characterization of ductile polymers. The model takes into account the energy dissipated in plastic deformation during the crack propagation period. Two material parameters are used in the model: the fracture energy at initiation and an equivalent tearing modulus which represents the variation of the fracture energy as the crack grows. The method was used to measure the impact fracture toughness of a toughened nylon 66 and of a polycarbonate/polyethylene blend. Measurements were made in impact as well as at a low loading rate. The material fracture toughness was also measured by the J-integral method in nonlinear fracture mechanics at a low loading rate. The fracture energy at initiation determined from the proposed model is in good agreement with that of the J-integral method. Inconsistency and the negative intercept which result from the conventional method of analysis are also discussed in terms of the two material parameters. |
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| Publication date | 1988-11-01 |
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| Publisher | Elsevier |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 28433
NRC-IGM88AP-103-654-G |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | fdfbfaba-3bf3-4710-bc42-a5c533e402d2 |
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| Record created | 2020-04-22 |
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| Record modified | 2020-05-08 |
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