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Publisher DOI: 10.1177/089270578800100107
Title: Fracture toughness of short fiber/thermoplastic matrix composites, compared on the basis of different test methods
Language: English
Authors: Friedrich, Klaus 
Walter, R. 
Voigt, J. 
Grosso, M. 
Issue Date: 1-Jan-1988
Source: Journal of Thermoplastic Composite Materials 1 (1): 68-93 (1988)
Journal or Series Name: Journal of Thermoplastic Composite Materials 
Abstract (english): A variety of thermoplastic matrices, including Polyethersulfone (PES), Polyoxymethylene (POM), and toughness modified Polyethylenterephthalate (PET), and their short glass fiber reinforced composites have been tested with respect to their impact resistance. Test methods applied, all characterize in some respects the "toughness" of these materials. It turns out, however, that the ranking order of their toughnesses varies quite remarkably, depending on the particular testing procedure. In a fracture mechanics test with compact tension specimens, the fracture toughness of Polyethersulfone, for instance, is very low compared to the other thermoplastics and to their short fiber reinforced versions. This is due to the very sharp notches used in this kind of toughness test, and due to the high notch sensitivity of PES. In a falling dart test with a CEAST® modular falling weight device, and the use of unnotched plates, PES proves to be, on the other hand, much better than all the other competitive materials. The results are discussed with respect to the content of infor mation of the individual tests on the "toughness" profile of the different polymers and com posite materials studied.
DOI: 10.15480/882.1604
ISSN: 1530-7980
Institute: Kunststoffe und Verbundwerkstoffe M-11 
Type: (wissenschaftlicher) Artikel
Permission Note: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich. This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
License: In Copyright In Copyright
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