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Mechanical analysis reveals irregular stress chains in ordered cylinder packings with weak defects, highlighting the critical structural role of force networks under compression.
We study uniaxial compression of 2d-ordered packings of parallel cylinders, which present weak geometrical defects responsible for a heterogeneity of the spatial distribution of intergranular stresses. The strongest stresses form links which generate an irregular network. By creating different types of vacancies, we show the importance of that network.
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Travers et al. (1987) studied this question.
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