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Hydrothermal effects on mechanically fastened glass/polypropylene composite joints
Author(s) -
Morii Ohru,
Hamada Hiroyuki,
Maekawa ZenIchiro,
Tanimoto Toshio
Publication year - 1994
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.750150605
Subject(s) - materials science , composite material , ultimate tensile strength , polypropylene , failure mode and effects analysis , joint (building) , composite number , tension (geology) , glass fiber , enhanced data rates for gsm evolution , bolted joint , finite element method , fiber , structural engineering , telecommunications , computer science , engineering
This study deals with the hydrothermal effects on mechanically fastened glass fiber mat/polypropylene composite joints with different joint geometry. Three kinds of joint geometries were adopted; hole diameter was 6 mm, the length from top edge to the hole center was 18 mm (3 e ) and the specimen width was 12 (2 w ), 18 (3 w ), and 30 mm (5 w ). The joints were immersed in hot water at 60 and 80°C. The effect of water temperature on the failure load appeared clearly in 2 w 3 e joints. The higher water temperature induced more strength reduction. The dominant failure mode changed from the net‐tension to the bearing for the original dry joints for wider specimens. The failure mode changed from multiple to net‐tension only for 3 w 3 e joints, because of a remarkable tensile strength reduction. The failure strength and the failure mode were predicted by the macroscopic failure criterion, and the characteristic experimental curves, and the FEM analysis. The predicted results agreed with experiment.