[en] The failure hyperelastic structural sealant joints is a fracture mechanics problem. Its modeling requires knowledge of the material property fracture toughness. The present work describes a methodology for determining the mode I bulk material fracture toughness of structural silicone sealants. The concept is demonstrated using DOWSIL™ 993 as an example. In total we manufactured, tested and evaluated 13 DCB specimens of 6mm and 12mm adhesive thickness. The fracture toughness is identified from J-integral measurements. The theory for determining the J-integral at finite deformations is laid out and an automated data analysis procedure
is suggested. The presented approach further allows...
Disciplines :
Civil engineering
Author, co-author :
Rosendahl, P. L.
Staudt, Y.
ODENBREIT, Christoph ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
SCHNEIDER, Jochen ; University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB)
BECKER, Werner ; University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE)
External co-authors :
yes
Language :
English
Title :
Measuring mode I fracture properties of thick-layered structural silicone sealants. (LAJ19.G)
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