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Unified Approach for Notch Stress Strain Conversion Rules
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: There are several simplified methods, known as notch stressstrain conversion (NSSC) rules that provide an approximate formula to relate local elasticplastic stresses and strains at the notch root to those estimated ...
Lower Bound Methods in Elastic Plastic Shakedown Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Several methods were proposed in recent years that allow the efficient calculation of elastic and elasticplastic shakedown limits. This paper establishes a uniform framework for such methods that are based on perfectlyplastic ...
Special Section on Ratcheting
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When significant cyclic loading is applied, the evaluation of fatigue and ratcheting effects becomes necessary. Fatigue analysis is concerned with avoiding the initiation and propagation of cracks that could eventually ...
Ratchet Limit Solution of a Beam With Arbitrary Cross Section
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The classical approaches in shakedown analysis are based the assumption that the stresses are eventually within the elastic range of the material everywhere in a component (elastic shakedown). Therefore, these approaches ...
Analytical Approach in Autofrettaged Spherical Pressure Vessels Considering the Bauschinger Effect
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an analytical study of spherical autofrettage-treated pressure vessels, considering the Bauschinger effect. A general analytical solution for stress and strain distributions is ...
Local Limit-Load Analysis Using the mβ Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Several upper-bound limit-load multipliers based on elastic modulus adjustment procedures converge to the lowest upper-bound value after several linear elastic iterations. However, pressure component ...
Improved Prediction Method for Estimating Notch Elastic-Plastic Strain
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Notch stress-strain conversion (NSSC) rules are widely used to estimate nonlinear and history-dependent stress-strain behavior of the notch components or structures. This paper focuses on the ...
Variational and Classical Methods for Limit Load Analysis of Inhomogeneous Media
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The load carrying capacity of a component or structure with varying material properties (inhomogeneous) is investigated using various lower- and upper-bound limit load multipliers in the context ...
Ratchet Boundary Determination Using a Noncyclic Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A simple and systematic procedure is proposed for shakedown analysis using a combination of linear and nonlinear finite element analysis (FEA). The method can identify the boundary between the ...
Limit Load Analysis of Cracked Components Using the Reference Volume Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cracks and flaws occur in mechanical components and structures, and can lead to catastrophic failures. Therefore, integrity assessment of components with defects is carried out. This paper describes ...