INVESTIGADORES
IDIART Martin Ignacio
congresos y reuniones científicas
Título:
A new constitutive theory for fiber-reinforced rubber-like materials
Autor/es:
M. I. IDIART; O. LOPEZ-PAMIES
Lugar:
Blacksburg (VA)
Reunión:
Conferencia; The 2009 Joint Conference on Mechanics and Materials; 2009
Institución organizadora:
Society of Engineering Science
Resumen:
This work presents a new analytical approach to determine
homogenization-based constitutive models for the mechanical behavior of
elastomers reinforced with aligned cylindrical fibers subjected to
finite deformations. The idea is to make use of a novel and fairly
general class of microgeometries for which the effective stored-energy
function can be computed exactly to a large degree of generality:
infinite-rank laminate microgeometries. The resulting effective
stored-energy function is solution to a Hamilton-Jacobi equation where
the initial volume fraction of fibers and the macroscopic deformation
gradient tensor play the roles of time and space, respectively. As a
first application of the proposed formulation, we derive an exact result
for the macroscopic response of fiber-reinforced elastomers made up of
Mooney-Rivlin matrix and fiber phases. The main theoretical and
practical aspects of this result are discussed.
