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RISLower and Upper Bound Shakedown Analysis of Structures With Temperature-Dependent Yield Stress
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Based upon the kinematic theorem of Koiter (1960, “ General Theorems for Elastic Plastic Solids,” in Progress in Solid Mechanics 1, J. N. Sneddon and R. Hill, eds., North-Holland, Amsterdam, ...
Limit and Shakedown Analysis of 45-Degree Piping Elbows Under Internal Pressure and In-Plane Bending
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper carries out the limit and shakedown analysis of 45 deg piping elbows made up of elastic–perfectly plastic materials by means of the recently proposed stress compensation method (SCM). The elbows are subjected ...
A Direct Method on the Evaluation of Cyclic Steady State of Structures With Creep Effect
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a new extension of the linear matching method (LMM) for the direct evaluation of cyclic behavior with creep effects of structures subjected to a general load condition in the steady cyclic state, with ...
Modeling of the Behavior of a Welded Joint Subjected to Reverse Bending Moment at High Temperature
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper is concerned with the modeling of the behaviour of welds when subjected to severe thermal and mechanical loads where the maximum temperature during dwell periods lies in the creep ...
A Direct Method on the Evaluation of Ratchet Limit
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a new linear matching method (LMM) technique for the direct evaluation of the ratchet limit of a structure subjected to a general cyclic load condition, which can be ...
A Fully Implicit, Lower Bound, Multi Axial Solution Strategy for Direct Ratchet Boundary Evaluation: Implementation and Comparison
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ensuring sufficient safety against ratcheting is a fundamental requirement in pressure vessel design. However, determining the ratchet boundary using a full elasticplastic finite element analysis can be problematic and a ...
A Fully Implicit, Lower Bound, Multi Axial Solution Strategy for Direct Ratchet Boundary Evaluation: Theoretical Development
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ensuring sufficient safety against ratchet is a fundamental requirement in pressure vessel design. Determining the ratchet boundary can prove difficult and computationally expensive when using a full elastic–plastic ...
Verification of the Linear Matching Method for Limit and Shakedown Analysis by Comparison With Experiments
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: 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 ...
On the Modified Monotonic Loading Concept for the Calculation of the Cyclic J Integral
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates an approach for calculating the cyclic Jintegral through a new industrial application. A previously proposed method is investigated further with the extension of this technique through a new application ...
On Creep Fatigue Interaction of Components at Elevated Temperature
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The accurate assessment of creep–fatigue interaction is an important issue for industrial components operating with large cyclic thermal and mechanical loads. An extensive review of different aspects of creep fatigue ...