Validation and internal length scale determination for a gradient damage model: Application to short glass-fibre-reinforced polypropylene. (English) Zbl 0963.74502

Geers, M. G. D.; de Borst, R.; Brekelmans, W. A. M.; Peerlings, R. H. J.

Int. J. Solids Struct. 36, No. 17, 2557-2583 (1999).

Summary: A strain-based transient-gradient damage model is used to analyze and describe the experimentally observed failure process in a compact-tension test carried out on short glass-fibre-reinforced polypropylene. Several aspects regarding the nonlocal character of the damage process in the material are emphasized, and the intrinsic length scale is determined using available strain fields from an experimental analysis. A good agreement between theory and experiments has been found on a global and on a local level.

MSC:

74-05	Experimental work for problems pertaining to mechanics of deformable solids
74R99	Fracture and damage
74S05	Finite element methods applied to problems in solid mechanics
74E30	Composite and mixture properties

Keywords:

strain-based transient-gradient damage; compact-tension test; glass-fibre-reinforced polypropylene