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The objective of this research is the use
of micro mechanics for the study of the mechanical
properties of fiber-based composites. The research is a
first step toward the development of a computer
simulation of three-dimensional mechanical behavior of
such materials based on modeling individual fibers and
their binders.
The mechanical behavior of glass
fibers, randomly oriented, and connected by a binding
material at random locations is modeled by assuming
the fibers are
long slender, elastic, rods. As such, they undergo
large deformations but experience only small strains.
The torsional stiffness of the fibers are also be taken
into account.
It is assumed that fibers can come into contact with
one another, as well as loose contact during the deformation
history. The model will then be used to determine deformation
characteristics, including failure modes and/or yield
surfaces of the composite.
Principal Investigators: Paul Heyliger, Erik Thompson Sponsor: Colorado Advanced Materials Institute Industry Contact: Dr. Diana Fisler, Johns-Manville |