Mark Messner
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View article: Design Data for Alloy 282 High Temperature Concentrating Solar Power Components
Design Data for Alloy 282 High Temperature Concentrating Solar Power Components Open
New design rules for high temperature concentrating solar power metallic components have been proposed recently. These rules are to be used in conjunction with the Section III, Division 5 rules of the ASME Boiler & Pressure Vessel Code and…
View article: Simulation of Creep Deformation and Failure in Graded AM Microstructures
Simulation of Creep Deformation and Failure in Graded AM Microstructures Open
View article: Microstructure-Based Understanding of High-Temperature Deformation Behaviors in Laser Powder Bed Fusion (LPBF) 316H Stainless Steel
Microstructure-Based Understanding of High-Temperature Deformation Behaviors in Laser Powder Bed Fusion (LPBF) 316H Stainless Steel Open
View article: NEML2: An efficient and modular multiphysics constitutive modeling library for hybrid computing environments
NEML2: An efficient and modular multiphysics constitutive modeling library for hybrid computing environments Open
This paper presents NEML2, an open-source, high-performance library developed for constitutive material modeling, designed to support the flexible and modular development of models for complex material behavior. Building on the foundationa…
View article: Report on Updated Properties Handbook of Printed Stainless Steel 316
Report on Updated Properties Handbook of Printed Stainless Steel 316 Open
View article: A simplified approach for creep damage and remaining life calculation for materials surveillance in advanced reactors
A simplified approach for creep damage and remaining life calculation for materials surveillance in advanced reactors Open
View article: ASME Code change proposal to implement new universal high temperature constitutive models for Section III, Division 5
ASME Code change proposal to implement new universal high temperature constitutive models for Section III, Division 5 Open
View article: Dispatch Manager for NEML2 Constitutive Model Calculations Embedded in MOOSE
Dispatch Manager for NEML2 Constitutive Model Calculations Embedded in MOOSE Open
View article: Multi-objective calibration of elastic-viscoplastic models to capture the elevated-temperature creep and tensile behaviour of alloy 617
Multi-objective calibration of elastic-viscoplastic models to capture the elevated-temperature creep and tensile behaviour of alloy 617 Open
View article: Development, validation, and verification of multi-pass thermo-mechanical welding simulations using the open-source MOOSE framework: NeT TG4 benchmark weldment
Development, validation, and verification of multi-pass thermo-mechanical welding simulations using the open-source MOOSE framework: NeT TG4 benchmark weldment Open
View article: A Data-Driven Method for Modeling Creep-Fatigue Stress-Strain Behavior Using Neural ODEs
A Data-Driven Method for Modeling Creep-Fatigue Stress-Strain Behavior Using Neural ODEs Open
In this paper, we introduce a data-driven machine learning approach for modeling one-dimensional stress-strain behavior under cyclic loading, utilizing experimental data from the nickel-based Alloy 617. The study employs uniaxial creep-fat…
View article: Predicting long-term stress relaxation on Alloy 709 using the crystal plasticity finite element method
Predicting long-term stress relaxation on Alloy 709 using the crystal plasticity finite element method Open
This report summarizes the results of physics-based, crystal plasticity simulations for the long-term stress relaxation behavior of Alloy 709. The purpose of the study was to provide insight into five key questions related to long-term beh…
View article: Uncertainty Quantification of Visco-Plastic Constitutive Model Using a Hierarchical Bayesian Framework Via Stochastic Variational Inference Method
Uncertainty Quantification of Visco-Plastic Constitutive Model Using a Hierarchical Bayesian Framework Via Stochastic Variational Inference Method Open
View article: The Role of Moisture in Mgcl2 Salt: A Multiscale Approach to Tes Performance
The Role of Moisture in Mgcl2 Salt: A Multiscale Approach to Tes Performance Open
View article: Long-term impact of oral cladribine on humoral immunity in multiple sclerosis
Long-term impact of oral cladribine on humoral immunity in multiple sclerosis Open
Background: Cladribine (CLAD), an immune reconstitution therapy for active multiple sclerosis (MS), can reduce intrathecal antibody production. Objectives: In this study, we investigated the long-term impact of oral CLAD on protective anti…
View article: Robust Solar Receivers Using MAX Phase Materials
Robust Solar Receivers Using MAX Phase Materials Open
View article: Time-Dependent Failure Assessment of Ceramic Receivers
Time-Dependent Failure Assessment of Ceramic Receivers Open
The outlet temperature targets for Gen 3 Concentrating Solar Power (CSP) systems pose a significant challenge to the structural reliability of high temperature metallic components, including those manufactured from nickel-based superalloys…
View article: ASME Section III, Division 5, Class A 100,000-hour design data for Alloy 709
ASME Section III, Division 5, Class A 100,000-hour design data for Alloy 709 Open
This report documents the 100,000 hour, Class A ASME design material data for Alloy 709 based on the extensive Department of Energy, Office of Nuclear Energy, Advanced Reactor Technologies qualification test campaign. This report includes …
View article: NEML2: A High Performance Library for Constitutive Modeling
NEML2: A High Performance Library for Constitutive Modeling Open
NEML2, the New Engineering Material model Library, version 2, is an offshoot of NEML, an earlier material modeling code developed at Argonne National Laboratory. NEML2 extends the key philosophy of its predecessor, i.e., material models ar…
View article: Simulating the effect of grain structure and porosity on creep for powder bed fusion 316H
Simulating the effect of grain structure and porosity on creep for powder bed fusion 316H Open
This report details results from modeling studies focused on identifying the potential factors influencing creep performance of 316H stainless steel manufactured using Laser Powder Bed Fusion (LPBF), with a focus on experimentally-observed…
View article: Initial Alloy 709 constitutive models for use with the ASME design by inelastic analysis and EPP+SMT design methods
Initial Alloy 709 constitutive models for use with the ASME design by inelastic analysis and EPP+SMT design methods Open
This report details a preliminary inelastic constitutive model describing the behavior of Alloy 709. This model will serve two purposes: (1) integration into Nonmandatory Appendix HBB-Z of the ASME Boiler & Pressure Vessel Code Section III…
View article: Acceptance criteria for in situ surveillance of MSR materials based on thermally-loaded mechanical test articles
Acceptance criteria for in situ surveillance of MSR materials based on thermally-loaded mechanical test articles Open
This report describes practices and acceptance test procedures for designing, running, and maintaining a material surveillance program in a future operating molten salt reactor. The programs described here rely on test data from passively …
View article: Design Methods, Tools, and Data for Ceramic Solar Receivers
Design Methods, Tools, and Data for Ceramic Solar Receivers Open
This report presents the development of tools and methods for evaluating the reliability and performance of ceramic materials in high temperature solar receivers. As Concentrating Solar Power (CSP) technologies aim for higher operating tem…
View article: Simplified inelastic constitutive models for ASME Section III, Division 5 design by inelastic analysis
Simplified inelastic constitutive models for ASME Section III, Division 5 design by inelastic analysis Open
This report describes the development of simplified, universal constitutive model that captures the high temperature monotonic and cyclic behavior of a range of commonly-used high temperature materials. The goal of the work is to provide a…
View article: Updated ASME design correlations and qualification plan for powder bed fusion 316H stainless steel
Updated ASME design correlations and qualification plan for powder bed fusion 316H stainless steel Open
This report provides an update on the Advanced Materials and Manufacturing Technologies (AMMT) program effort to qualify Laser-Powder Bed Fusion (L-PBF) 316H stainless steel for use with the ASME Boiler & Pressure Vessel Code Section III, …
View article: Sensitivity Study of Multiscale and Phenomenological Elasto-Viscoplastic Grade 91 Material Models for Component-Scale Response
Sensitivity Study of Multiscale and Phenomenological Elasto-Viscoplastic Grade 91 Material Models for Component-Scale Response Open
Many advanced nuclear reactor concepts currently being developed are targeting higher operating temperatures relative to the current fleet of light water nuclear reactors, for efficiency gains and other operational considerations. The desi…
View article: Investigating Various Failure Models on Commercial Silicon Carbide
Investigating Various Failure Models on Commercial Silicon Carbide Open
Structures and components made from ceramic materials are often brittle and can fail by the unstable growth of existing flaws such as voids and cracks. There have been several failure criteria developed for ceramics, in the past and they a…
View article: A Computer Design Tool for Ceramic Receivers
A Computer Design Tool for Ceramic Receivers Open
Gen3 solar receivers and other components will experience a combination of high temperatures and high stress caused by thermal stress and internal pressure. Under these conditions metallic components, even those manufactured from nickel-ba…
View article: Reliability comparisons between additively manufactured and conventional SiC–Si ceramic composites
Reliability comparisons between additively manufactured and conventional SiC–Si ceramic composites Open
An additively manufactured reaction‐bonded silicon carbide ceramic composite is fabricated using a bimodal powder feedstock and the binder‐jetting printing technique. On fabricating, the ceramic is investigated to report its composition, m…
View article: sf-24-103
sf-24-103 Open
pyzag is a library for efficiently training generic models defined with a recursive nonlinear function. We developed it primarily to provide an efficient means to train NEML2 models it can be used to train other, more general types of mode…