Fracture of slightly plasticized polyvinyl chloride

Brown, Hugh R.; Stevens, Geoffrey W.

doi:10.1007/bf00808051

Cited by 16 publications

(2 citation statements)

References 15 publications

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“…The shape of crack tip crazes in PMMA has been examined and shown to be an accurate fit to the Dugdale model [7,47]. For the crack tip crazes in PVC, however, the model is less applicable; they were much more wedge-shaped than would be predicted by the model, and the stress intensity factors calculated from the craze parameters using the model were less than half of those observed experimentally [48,49]. To explain these discrepancies, various reasons have been suggested.…”

Section: Deformation Mechanismsmentioning

confidence: 99%

“…Mills and Walker speculate that this discrepancy might be caused by the existence of plastic yielding above and below the craze [48]. Brown and Stevens thought the use of the Dugdale model for the wedgeshaped crazes might be the problem [49]. Lastly, the discrepancies could be caused by the coexistence of a yield zone with the craze which was observed by optical and scanning electron microscopy [50,51].…”

Section: Deformation Mechanismsmentioning

confidence: 99%

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Brittle fracture in PVC pipe material

McGarry

Mandell

Hsueh-Lee

1985

J. polym. sci., C Polym. symp.

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HSUEH-LEE SYNOPSISMethods to measure the plane strain fracture toughness (I&) of PVC pipe material, valid according to linear elastic fracture mechanics (LEFM), have been developed. As in metals practice, the crack tip plastic zone must be small compared to initial crack length, section thickness, and other specimen dimensions to achieve validity. Other conditions of test rate and temperature also must be fulfilled. K I , values vary from 2.8 to 4.0 MN m-.3R. Quantitative micromechanical analyses of the plastic flow regions on the fracture surfaces account for only a fraction of the measured toughness. Other deformation mechanisms (crazing) below but near the surfaces have been observed; apparently they absorb the balance of the work required to drive the stable crack. Under catastrophic, rapid crack propagation, only a single craze exists ahead of the crack tip; the multiple crazes disappear. Thus the dynamic fracture toughness may be several factors less than the static or stable value. tion rate), and temperature in addition to the material property itself [4].

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Section: Deformation Mechanismsmentioning

confidence: 99%

Section: Deformation Mechanismsmentioning

confidence: 99%

Brittle fracture in PVC pipe material

McGarry

Mandell

Hsueh-Lee

1985

J. polym. sci., C Polym. symp.

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Crazing and Fracture of Polymers

Narisawa

Yee

2006

Materials Science and Technology

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Deformation behavior of plasticized poly(vinyl chloride) membranes with barium content

Abu-Samra

Ahmad

Zihlif

1984

Polymer Engineering & Sci

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Barium complexes were embedded in plasticized poly(vinyl chloride) (PVC) membranes. Effects of these metallic complexes were followed as a function temperature and strain rate. It was found that both the elastic modulus and yield stress decrease with barium content. This behavior is attributed to a lack of uniform structure and the existence of irregularities and voids in the bulk membranes. Another factor which may reduce the tensile strength is te internal and interfacial residual stresses developed at the metal‐matrix interface. These internal stresses and the structural nonuniformity influence the electrical conduction mechanism and performance of the PVC matrix ion‐selective electrodes during aging. Also, it was observed that the yield stress of these membranes has a strain rate and temperature dependence.

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Fracture of slightly plasticized polyvinyl chloride

Cited by 16 publications

References 15 publications

Brittle fracture in PVC pipe material

Brittle fracture in PVC pipe material

Crazing and Fracture of Polymers

Deformation behavior of plasticized poly(vinyl chloride) membranes with barium content

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