shakedown analysis
On the shakedown analysis of welded pipes
... the shakedown analysis of welded pipes subjected to a constant internal pressure and a varying thermal ...bound shakedown limits of the ...on shakedown limits are ...the shakedown ...
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Shakedown analysis of a composite cylinder with a cross-hole
... The basic assumption and yield condition of the analysis of shakedown is provided in [16]. A detailed mathematical derivation of shakedown analysis is given in [17]. For solving problems of ...
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Shakedown analysis of elastic-plastic structures considering the effect of temperature on yield strength : theory, method and applications
... 1 Shakedown analysis of elastic-plastic structures considering the effect of 2 temperature on yield strength: theory, method and applications 3 Heng Peng1, Yinghua Liu1,*, Haofeng Chen2 [r] ...
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A numerical formulation and algorithm for limit and shakedown analysis of large-scale elastoplastic structures
... Pipelines, which are generally made up of ductile steel, are widely used in various fields, such as petrochemical industry, energy, nuclear industry, and electric power engineering, etc. During their operation, many ...
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Verification of the linear matching method for limit and shakedown analysis by comparison with experiments
... LMM analysis with experimental tests for limit loads and shakedown limits available in the ...and shakedown limits were determined for pipe intersections and nozzle-sphere intersections respectively, ...
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Verification of the linear matching method for limit and shakedown analysis by comparison with experiments
... limit analysis confirms the correct implementation of the bounding ...the shakedown limit. The shakedown pressures of oblique nozzles in spherical shells were predicted with a reasonable yet ...
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Shakedown analysis of engineering structures under multiple variable mechanical and thermal loads using the stress compensation method
... 96 The purpose of this paper is to develop a novel and effective numerical procedure based 97 on the Stress Compensation Method SCM to solve the practical shakedown problems of 98 large-[r] ...
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Shakedown analysis for rolling and sliding contact problems
... upper bound shakedown limit. The method, the Linear Matching Method , (Ponter and Engelhardt (2000), Chen and Ponter (2001), Ponter et al (2002)), is essentially a programming method that seeks mechanisms that ...
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Integrated structural analysis tool using linear matching method part 1 : Software development
... the shakedown/steady cycle/ratchet analysis. Therefore one analysis step is created for each of these applied loads and predefined fields and the corresponding load or field is applied in isolation ...
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Shakedown of Layered Pavements under Repeated Moving Loads
... with respect to their own cohesion respectively. From these figures, it is clear that the residual stress fields in the first layer change barely with increasing loading passes, while some changes are observed in the ...
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Elasto-Plastic Finite Element Evaluation of Flexible Pavements Based on Shakedown Concept
... element analysis was performed on flexible pavements under vertical repeated traffic loads to evaluate their shakedown ...loads. Shakedown limits were obtained considering both failure and ...
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Ratchet analysis of structures under a generalised cyclic load history
... strict shakedown, collapse and ratchet domains via a single ...and shakedown analysis procedures by utilising the latest commercial finite element software as well as moving away from the labour ...
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A Simplified Technique for Shakedown Load Determination
... The Two-bar problem has been investigated by several researchers. Parkes (1964) studied the problem of thermal ratchetting in an aircraft wing resulting from the cyclic thermal stresses superimposed on the normal wing ...
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Numerical investigation of shakedown residual stresses under moving surface loads
... STATIC SHAKEDOWN THEOREM Shown in Figure 1 is the illustration of a finite element application of Melan’s static shakedown ...the shakedown theorem are assumed to be linearly distributed across the ...
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A direct method for the evaluation of lower and upper bound ratchet limits
... traditional shakedown analysis where the linear elastic solution is augmented by this varying residual stress ...This shakedown analysis is based on Koiter's upper bound theorem ...then ...
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Ratcheting in cylindrical pipes due to an axially oscillating sharp temperature front
... When hot fluid within a pipe moves cyclically along its axis, the pipe is differentially heated, and, so, experience varying amounts of thermal strain. If the temperature is high enough, plastic strains may also be ...
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Shakedown behaviour of a 90 degree single mitred pipe bends under cyclic in-plane closing moments
... Graphs of load against time, displacement against time and the outwards movement of the mitre perpendicular to the loading machine (LDVT) can be seen in Figure 5. As an indication of global strain, the displacement of ...
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Application of a Unified Fatigue Modelling to Some Thermomechanical Fatigue Problems
... However in case of more complex cycles stress state, there is no such relation, since it is also well known that in plasticity, the response depends closely of the loading path and of the constitutive equations. ...
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Recent developments of the linear matching method framework for structural integrity assessment
... The LMM subroutines and plug-in tools for structural integrity assessment are now in extensive use in industries for the design and routine assessment of power plant components. This paper presents a detailed review and ...
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A Simplified Technique for Shakedown Limit Load Determination of a Large Square Plate with a Hole Under Cyclic Biaxial Loading
... the shakedown behavior is characterized by a pure elastic response represented by the vertical straight line with triangle legend, shown in ...the shakedown behavior is ...
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