Masonry structures: “old” and “new” approaches to strongly local phenomena
DOI:
https://doi.org/10.3989/ic.16.032Keywords:
Masonry structures, photoelasticity, heterogeneous finite elements, rigid blocks, unilateral contactAbstract
The characterization of the material as a discontinuous media is proposed to study strongly local phenomena in the behaviour of historical masonry structures. Three methods are implemented: an experimental method, photoelastic, and two numerical methods, heterogeneous finite elements and rigid blocks in unilateral contact. Qualitative comparison of the results shows that the random irregularities in the contact between bodies play an important role in explaining local behaviour of masonry. Quantitative comparison with the results of load tests previously performed on dry masonry walls support this hypothesis. The results are very encouraging and suggest that it is necessary to develop approaches of this kind –approaches that, although relatively common in the field of granular media, have been very scarce in the field of historic masonry structures.
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