Results 11 to 20 of about 26,438,084 (288)

NOVEL NUMERICAL PROCEDURES FOR LIMIT ANALYSIS OF STRUCTURES: MESH-FREE METHODS AND MATHEMATICAL PROGRAMMING [PDF]

open access: yes, 2010
Current research in the field of limit analysis is focussing on the development of numerical tools which are sufficiently efficient and robust to be used in engineering practice.
Le, Canh
core   +6 more sources

Verification of the linear matching method for limit and shakedown analysis by comparison with experiments [PDF]

open access: yes, 2013
The Linear Matching Method (LMM), a direct numerical method for determining shakedown and ratchet limits of components, has seen significant development in recent years. Previous verifications of these developments against cyclic nonlinear finite element
Tipping, David   +2 more
core   +4 more sources

On shakedown, ratchet and limit analysis of defective pipeline [PDF]

open access: yes, 2012
In this study, the limit load, shakedown and ratchet limit of a defective pipeline subjected to constant internal pressure and a cyclic thermal gradient are analyzed.
Ure, James Michael   +3 more
core   +4 more sources

3D ultimate limit state analysis using discontinuity layout optimization [PDF]

open access: yes, 2012
The recently developed discontinuity layout optimization (DLO) procedure uses limit analysis theory to directly obtain upper bounds on plane strain collapse loads of bodies and has successfully been applied to geotechnical problems.
Hawksbee, Samuel John
core   +5 more sources

A Multi-Scale Numerical Method for the Study of Size-Scale Effects in Ductile Fracture

open access: yesMetals, 2014
The use of a stress-strain constitutive relation for the undamaged material and a traction-separation cohesive crack model with softening for cracking has been demonstrated to be an effective strategy to predict and explain the size-scale effects on the
Mauro Corrado   +2 more
doaj   +1 more source

Diagnosis and Seismic Behavior Evaluation of the Church of São Miguel de Refojos (Portugal)

open access: yesBuildings, 2019
The Benedictine Monastery of São Miguel de Refojos, located in Cabeceiras de Basto (Portugal), is a monumental complex and a distinctive example of the 18th century Portuguese Baroque architecture.
Rafael Ramírez   +2 more
doaj   +1 more source

A Note on Limit Analysis

open access: yesMathematics and Mechanics of Solids, 2009
We present a mathematical framework for the theory of limit analysis of rigid, perfectly plastic bodies where the equality of the static multiplier and kinematic multiplier for incompressible fields is formulated and proved in a compact form. Assuming that the failure criterion is a norm on the space of deviatoric stress fields, we use standard ...
Segev, Reuven, Falach, Lior
openaire   +3 more sources

Unilateral contact and damage analysis in masonry arches

open access: yesVietnam Journal of Mechanics, 2009
In the present work the ultimate failure load and the collapse mechanism of a stone arch bridge are estimated by the usage of (a) a multi - part elastic model with unilateral contact frictional interfaces and (b) a continuous damage model.
M. Campo   +2 more
doaj   +1 more source

Calculation Method for Optimizing the Bearing Capacity of Two-Layer Clay Foundation Based on Upper-Bound Limit Analysis

open access: yesFrontiers in Earth Science, 2022
In this study, a foundation bearing capacity limit analysis upper-bound solution (FLU) was proposed under the theoretical framework of limit analysis. To be more specific, an optimized mathematical model based on a rigid block discrete system was first ...
Xing-Chao Lin   +4 more
doaj   +1 more source

The Limits of Cost-Effectiveness Analysis [PDF]

open access: yesCirculation: Cardiovascular Quality and Outcomes, 2009
The competitive worldwide economic environment and ever-increasing costs of health care have created a setting in which understanding costs and making sure that we achieve good value in health care are paramount. One approach to seeking value is through the use of cost-effectiveness analysis.
William S, Weintraub, David J, Cohen
openaire   +2 more sources

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