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1766967 
Journal Article 
Strength Assessment and Bonding Study of Aluminum Short Fiber-Reinforced Gypsum Composites 
Mohandesi, JA; Sangghaleh, Ali; Nazari, Ali 
2012 
Yes 
International Journal of Damage Mechanics
ISSN: 1056-7895 
21 
1 
129-149 
WOS:000300183500006 
has retraction 10505281 Ductile to Brittle Transition Temperature of Functionally Graded Steels (Retraction of Vol 21, Pg 191, 2012)
In this study, tensile strength of gypsum-based composite
with aluminum fibers up to 15 vol.% was studied. To increase the interfacial bond strength
between fibers and matrix, aluminum fibers were anodized under different conditions. Single fiber
pull-out tests were carried out to investigate the bond strength. The interface was examined by
scanning electron microscope. The ability of the composites to withstand longitudinal tensile
load was also studied by tensile tests of dog bone-shaped, randomly oriented fiber-reinforced
gypsum. By the introduction of aluminum fibers in gypsum as a randomly oriented composite,
considerable increment in the strength is achieved and the toughness of the composite improves
significantly. Although, anodizing provides a considerable effect on pull out force via
development of stronger interface with gypsum, it does not significantly affect the overall
strength of the composite. A mathematical model has been developed to predict the strength of the
composites with up to 15 vol.% aluminum fibers. The obtained results are in good agreement with
the experimental data. 
gypsum composite; aluminum fibers; reinforcement; tensile strength; anodized aluminum fibers; pull out