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Grip point spacing along the edges of an anisotropic fabric sheet in a biaxial tensile test
Author(s) -
Bassett Richard J.,
Postle Ron,
Pan Ning
Publication year - 1999
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.10357
Subject(s) - materials science , composite material , anisotropy , ultimate tensile strength , displacement (psychology) , structural engineering , point (geometry) , stress (linguistics) , tensile testing , geometry , mathematics , engineering , optics , psychology , linguistics , philosophy , physics , psychotherapist
The technique of gripping fabric edges using pin grips has been applied in several studies of biaxial mechanical behavior of fabrics. This paper presents a theoretical study of the nonuniform stress distribution caused by the spacing of the grip points. The theory leads to expressions of the shear strain in the fabric specimen and the displacement of the grip points by which the tensile stress nonuniformity caused by the grip method can be calculated. The analysis reveals important factors affecting the stress distribution in a fabric specimen and provides design criteria for new instrument development.