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RISAccelerated Creep Test Qualification of Creep-Resistance Using the Wilshire–Cano–Stewart Constitutive Model and Stepped Isostress Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, a qualification of accelerated creep-resistance of Inconel 718 is assessed using the novel Wilshire–Cano–Stewart (WCS) model and the stepped isostress method (SSM) and predictions are made to conventional ...
Modeling the Creep of Hastelloy X and the Fatigue of 304 Stainless Steel Using the Miller and Walker Unified Viscoplastic Constitutive Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hastelloy X (HX) and 304 stainless steel (304SS) are widely used in the pressure vessel and piping industries, specifically in nuclear and chemical reactors, pipe, and valve applications. Both alloys are favored for their ...
Metamodeling Time-Temperature Creep Parameters
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: There exist many time-temperature parameter (TTP) models for creep rupture prediction of components including the Larson–Miller (LM), Manson–Haferd (MH), Manson–Brown (MB), Orr–Sherby–Dorn (OSD), Manson–Succop (MS), ...
An Extrema Approach to Probabilistic Creep Modeling in Finite Element Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper introduces a computationally efficient extrema approach for the probabilistic predictions of creep in finite element analysis (FEA). Component-level probabilistic simulations are needed to assess the reliability ...
Assessment of the Wilshire-Cano-Stewart Model Using Strain Energy Density Dissipation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, strain energy density (SED) is employed as a creep damage parameter to calibrate the Wilshire-Cano-Stewart (WCS) model. The WCS model is an adaptation of the Wilshire equations combined with continuum damage ...
Creep Lifetime Prediction of Alloy 617 Using Black Box Machine Learning Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study explored the application of black box machine learning (ML) to build high throughput models that predict the creep response of Ni-based Alloy 617. Black box ML refers to highly complex machine learning algorithms ...
An Advanced Sine-Hyperbolic Creep-Damage Model Incorporating Threshold Strength
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study aims at improving the classic sine-hyperbolic (Sinh) creep-damage model to predict minimum-creep-strain-rate (MCSR), rupture, damage, and creep deformation. The Sinh model employs a continuum-damage-mechanics-based ...