Issue 51

R. Landolfo et alii, Frattura ed Integrità Strutturale, 51 (2020) 517-533; DOI: 10.3221/IGF-ESIS.51.39 533 2 k t shear force component at contact point k along local coordinate axis 2 ρ unit weight t vector collecting the in-plane and the out-of-plane stresses N vector collecting the in-plane stresses M vector collecting the out-of-plane stresses E vector collecting the in-plane strains Χ vector collecting the out-of-plane strains μ b aspect ratio of the blocks h thickness of the plate  joint friction a height of the block b width of the block