Method of deformation analysis for composite structures of soils and masonry stones

作者：Hashimoto Ryota; Kikumoto Mamoru; Koyama Tomofumi; Mimrua Mamoru

来源：Computers and Geotechnics, 2017, 82: 67-84.

DOI：10.1016/j.compgeo.2016.09.011

• NMM-DDA
• Elasto-plastic constitutive law
• Node-based uniform strain element
• Deformation analysis
• Soil and masonry composite structure
• Bearing capacity

The coupled numerical manifold method (NMM) and discontinuous deformation analysis (DDA) are enhanced to simulate deformations of continuous soil and discontinuous masonry structures. An elasto-plastic NMM-DDA is formulated that incorporates elasto-plastic constitutive laws into incremental forms of the equation of motion. A node-based uniform strain element is applied to avoid volumetric locking, which often occurs in conventional NMM-DDA. The proposed method is applied to three fundamental boundary value problems: a beam bending problem, a bearing capacity problem of a footing, and a bearing capacity problem of a masonry structure. The method is verified through comparisons with conventional solutions.

• 出版日期2017-2