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Lower bound limit analysis using finite elements and linear programming
This paper describes a technique for computing lower bound limit loads in soil mechanics under conditions of plane strain. In order to invoke the lower bound theorem of classical plasticity theory, aExpand
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Lower bound limit analysis using non‐linear programming
TLDR
This paper describes a new formulation, based on linear finite elements and non-linear programming, for computing rigorous lower bounds in 1, 2 and 3 dimensions. Expand
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The ultimate pullout capacity of anchors in frictional soils
During the last 30 years various researchers have proposed approximate techniques to estimate the uplift capacity of soil anchors. As the majority of past research has been experimentally based, muchExpand
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Refined explicit integration of elastoplastic models with automatic error control
Effective explicit algorithms for integrating complex elastoplastic constitutive models, such as those belonging to the Cam clay family, are described. These automatically divide the applied strainExpand
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Upper bound limit analysis using discontinuous velocity fields
Abstract A new method for computing rigorous upper bounds under plane strain conditions is described. It is based on a linear three-noded triangular element, which has six unknown nodal velocitiesExpand
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An algorithm for profile and wavefront reduction of sparse matrices
SUMMARY An algorithm for reducing the profile and wavefront of a sparse matrix is described. The scheme is applicable to any sparse matrix which has a symmetric pattern of zeros and may be used toExpand
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A smooth hyperbolic approximation to the Mohr-Coulomb yield criterion
Abstract The Mohr-Coulomb yield criterion is used widely in elastoplastic geotechnical analysis. There are computational difficulties with this model, however, due to the gradient discontinuitiesExpand
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Stability of plate anchors in undrained clay
Soil anchors are commonly used as foundation systems for structures requiring uplift resistance, such as transmission towers, or for structures requiring lateral resistance, such as sheet pile walls.Expand
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Two- and three-dimensional bearing capacity of foundations in clay
Bearing capacity calculations are an important part of the design of foundations. Most of the terms in the bearing capacity equation, as it is used today in practice, are empirical. Shape factors forExpand
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