Voids and their effect on the strain rate dependent material properties and fatigue behaviour of non-crimp fabric composites materials

Autor:	Bodo Fiedler, Werner Hufenbach, N. Kosmann, R. Protz, Maik Gude, Karl Schulte
Rok vydání:	2015
Předmět:	Void (astronomy) Materials science Mechanical Engineering Glass fiber Composite number Epoxy Strain rate Industrial and Manufacturing Engineering Mechanics of Materials visual_art Ceramics and Composites Crimp visual_art.visual_art_medium Composite material Material properties Tensile testing
Zdroj:	Composites Part B: Engineering. 83:346-351
ISSN:	1359-8368
DOI:	10.1016/j.compositesb.2015.08.018
Popis:	The manufacture of composite structures is inevitably linked to the formation of voids. Several non-destructive techniques are potentially able of detecting defects, but just the exact knowledge of the effects of defects on the mechanical properties allows the definition of thresholds for the purpose of quality management. In this paper an experimental program for characterizing the effect of voids on the composite materials behaviour is presented. Therefore glass fibre non-crimp fabric reinforced epoxy composites were produced using vacuum assistant resin transfer moulding. For obtaining various void contents specially modified process parameters were used. Nominally defect free specimens are compared with flawed specimens. Tensile testing at different loading speeds and fatigue tests in tension-compression loading are performed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d66125abcd62e3a1007eb788d9b481a0 https://doi.org/10.1016/j.compositesb.2015.08.018 Zobrazit plný text záznamu Full Text from ScienceDirect