TY - JOUR
T1 - On the realization of the bulk modulus bounds for two-phase viscoelastic composites
AU - Andreasen, Casper Schousboe
AU - Andreassen, Erik
AU - Jensen, Jakob Søndergaard
AU - Sigmund, Ole
PY - 2014
Y1 - 2014
N2 - Materials with good vibration damping properties and high stiffness are of great industrial interest. In this paper the bounds for viscoelastic composites are investigated and material microstructures that realize the upper bound are obtained by topology optimization. These viscoelastic composites can be realized by additive manufacturing technologies followed by an infiltration process. Viscoelastic composites consisting of a relatively stiff elastic phase, e.g. steel, and a relatively lossy viscoelastic phase, e.g. silicone rubber, have non-connected stiff regions when optimized for maximum damping. In order to ensure manufacturability of such composites the connectivity of the matrix is ensured by imposing a conductivity constraint and the influence on the bounds is discussed. © 2013 Elsevier Ltd. All rights reserved.
AB - Materials with good vibration damping properties and high stiffness are of great industrial interest. In this paper the bounds for viscoelastic composites are investigated and material microstructures that realize the upper bound are obtained by topology optimization. These viscoelastic composites can be realized by additive manufacturing technologies followed by an infiltration process. Viscoelastic composites consisting of a relatively stiff elastic phase, e.g. steel, and a relatively lossy viscoelastic phase, e.g. silicone rubber, have non-connected stiff regions when optimized for maximum damping. In order to ensure manufacturability of such composites the connectivity of the matrix is ensured by imposing a conductivity constraint and the influence on the bounds is discussed. © 2013 Elsevier Ltd. All rights reserved.
KW - Viscoelasticity
KW - Topology optimization
KW - Microstructure
KW - Analytical bounds
U2 - 10.1016/j.jmps.2013.09.007
DO - 10.1016/j.jmps.2013.09.007
M3 - Journal article
SN - 0022-5096
VL - 63
SP - 228
EP - 241
JO - Journal of the Mechanics and Physics of Solids
JF - Journal of the Mechanics and Physics of Solids
ER -