@article {2015,
title = {A bridging mechanism in the homogenisation of brittle composites with soft inclusions},
number = {SISSA;02/2015/MATE},
year = {2015},
institution = {SISSA},
abstract = {We provide a homogenisation result for the energy-functional associated with a purely brittle composite whose microstructure is characterised by soft periodic inclusions embedded in a stiffer matrix. We show that the two constituents as above can be suitably arranged on a microscopic scale ε to obtain, in the limit as ε tends to zero, a homogeneous macroscopic energy-functional explicitly depending on the opening of the crack.},
url = {http://urania.sissa.it/xmlui/handle/1963/7492},
author = {Marco Barchiesi and Giuliano Lazzaroni and Caterina Ida Zeppieri}
}
@article {2009,
title = {Homogenization of fiber reinforced brittle materials: the extremal cases},
journal = {SIAM J. Math. Anal. 41 (2009) 1874-1889},
number = {SISSA;49/2008/M},
year = {2009},
publisher = {SIAM},
abstract = {We analyze the behavior of a fragile material reinforced by a reticulated elastic unbreakable structure in the case of antiplane shear. The microscopic geometry of this material is described by means of two small parameters: the period $\\\\varepsilon$ of the grid and the ratio $\\\\delta$ between the thickness of the fibers and the period $\\\\varepsilon$. We show that the asymptotic behavior as $\\\\varepsilon\\\\to0^+$ and $\\\\delta\\\\to0^+$ depends dramatically on the relative size of these parameters. Indeed, in the two cases considered, i.e., $\\\\varepsilon\\\\ll\\\\delta$ and $\\\\varepsilon\\\\gg\\\\delta$, we obtain two different limit models: a perfectly elastic model and an elastic model with macroscopic cracks, respectively.},
url = {http://hdl.handle.net/1963/2705},
author = {Marco Barchiesi and Gianni Dal Maso}
}