Fracture toughness determination of ABS polymers using the J-method

Bernal, Celina Raquel; Frontini, Patricia María; Herrera, R.

doi:10.1016/0142-9418(92)90022-4

Cited by 29 publications

(9 citation statements)

References 10 publications

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“…As shown in Table 3, J, increases with rubber content, consistent with the idea that at these rubber contents no important overlapping effects of stress fields are present. Dynamic J , appeared extremely higher than the ones obtained in static conditions (21).…”

Section: Abs At Room Temperaturecontrasting

confidence: 56%

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Determination of fracture toughness in rubber modified glassy polymers under impact conditions

Bernal

Frontini

1995

Polymer Engineering & Sci

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This paper analyzes the applicability of simple indirect methods for determining the impact fracture toughness of ductile polymers. Commercial rubber‐modified thermoplastics were assayed. Tests were carried out in a Charpy impact pendulum on sharp notched samples at room temperature and at 80°C. Specimens of different geometric relationship, were considered. Thickness, side grooving and span effects were investigated. Reslts appear to be geometrically and strain rate independent. ABS and high impact polystyrene samples exhibited a whitening effect due to craze formation through the whole fracture surface, indicating that stable crack propagation was occurring. Medium impact polystyrene, however, exhibited combined stable and unstable crack propagation mode, displaying shiny and dull zones on the surfaces of the broken samples. Data were analyzed following the corrected elastic and the Jc methods. The fit quality was evaluated by statistical analysis. In addition, two new methods were tried: the methods proposed by Vu‐Khanh and De Charentenay for semiductile behavior and by Vu‐Khanh for ductile behavior. The equivalencies between the different critical parameters that arose from the methods are compared and analyzed.

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Section: Abs At Room Temperaturecontrasting

confidence: 56%

“…35, NO. 21 ular distance mainly associated with the difference in rubber content between Lustrex 2220 and 4300.…”

Section: Fracture Propagation Modesmentioning

confidence: 96%

Determination of fracture toughness in rubber modified glassy polymers under impact conditions

Bernal

Frontini

1995

Polymer Engineering & Sci

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“…Several papers10, 11 have been published in which the blunting line approach was used to determine experimentally J IC . We examined the blunting line approach from the comparison between the fracture toughness determined from K I with K IC calculated from J IC according to ASTM E813‐89.…”

Section: Methodsmentioning

confidence: 99%

Effects of moisture absorption on fracture behaviors of acrylonitrile-butadiene-styrene resin

Notomi

Kishimoto

Shibuya

et al. 1999

J. Appl. Polym. Sci.

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ABSTRACT:The effect of moisture absorption on fracture behaviors of acrylonitrilebutadiene-styrene (ABS) resin has been studied. For comparison, polystyrene (PS) and styrene-acrylonitrile (SAN) resin have been tested. The fracture toughness of PS and SAN resins is determined by the ASTM standard test method for brittle polymers. The fracture toughness of ABS resin is obtained on the basis of the multiple specimens method. The fracture toughness of PS and SAN resin decreases with the increase in moisture absorption. On the other hand, the fracture toughness of ABS resin slightly decreases despite enormous moisture absorption. On the specimens absorbing moisture, a bright whitening region and a milky coloring region are distinguished in the stress-whitening region, and the milky coloring region expands around the bright whitening region at the crack tip. From the transmission electron microscopic observation, the precraze formation can be recognized in this region. The crack-tip shielding effect induced by this formation compensates the fracture toughness decrease due to moisture absorption.

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“…As the variation is small, this suggests that the stress intensity factor K I can be used as the criterion of the crack propagation even under the nanoscaled singular stress field in ABS resin. However, for the exact evaluation, the nonlinear and/or time dependent analysis may be required. Since the focus of this work is on the development of experimental methodology, the detailed stress analysis is out of scope, and it remains for future work.…”

Section: Fracture Toughnessmentioning

confidence: 99%

Development of experimental methodology on fracture toughness of microscale polymer resins under in situ observation

Kaneko

Sumigawa

et al. 2019

Mat Design & Process Comms

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The purpose of this study is to develop a method on fracture toughness test for single‐digit micrometer scale polymeric materials, including shape design of the specimen and introduction of precrack. Acrylonitrile butadiene styrene (ABS) polymer resin is employed as test material for the development. The specimens are carefully manufactured by means of the focused ion beam (FIB), and a precracks are successfully introduced at the notch root by the asymmetric loading. After then, the specimens are reshaped, and the mode I load is applied for the evaluation of fracture toughness. The stress field around the crack tip is calculated by the finite element analysis, and the critical stress intensity factor KIC is found to be KIC = 0.145 to 0.175 MPa m.

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Fracture toughness determination of ABS polymers using the J-method

Cited by 29 publications

References 10 publications

Determination of fracture toughness in rubber modified glassy polymers under impact conditions

Determination of fracture toughness in rubber modified glassy polymers under impact conditions

Effects of moisture absorption on fracture behaviors of acrylonitrile-butadiene-styrene resin

Development of experimental methodology on fracture toughness of microscale polymer resins under in situ observation

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