Abstract
A heterogeneous approach for FE upper bound limit analyses of out-of-plane loaded masonry panels is presented. Under the assumption of associated plasticity for the constituent materials, mortar joints are reduced to interfaces with a Mohr–Coulomb failure criterion with tension cut-off and cap in compression, whereas for bricks both limited and unlimited strength are taken into account. At each interface, plastic dissipation can occur as a combination of out-of-plane shear, bending and torsion. In order to test the reliability of the model proposed, several examples of dry-joint panels out-of-plane loaded tested at the University of Calabria (Italy) are discussed. Numerical results are compared with experimental data for three different series of walls at different values of the in-plane compressive vertical loads applied. The comparisons show that reliable predictions of both collapse loads and failure mechanisms can be obtained by means of the numerical procedure employed.
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Milani, G., Zuccarello, F.A., Olivito, R.S. et al. Heterogeneous upper-bound finite element limit analysis of masonry walls out-of-plane loaded. Comput Mech 40, 911–931 (2007). https://doi.org/10.1007/s00466-006-0151-9
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DOI: https://doi.org/10.1007/s00466-006-0151-9