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Conferences

Influence of Drawbeads in Deep Drawing of Plane-Strain Channel Sections

October 12, 2021

Author(s)

D E. Green, T B. Stoughton, Thomas H. Gnaupel-Herold, Mark Iadicola, Timothy J. Foecke

The Numisheet 2005 Benchmark 3 consisted of forming four different automotive sheet materials in a two-stage process. The first stage consisted of forming...

Modal Reconstruction of Aspheric Surfaces From Experimental Second Derivatives

October 12, 2021

Author(s)

Nadia Machkour-Deshayes, Byoung C. Kim, Robert S. Polvani, Ulf Griesmann

A method for the measurement of precise aspheric optical surfaces based on measurements of the second derivatives of the surface is evaluated. A compact phase...

MatML: XML for Information Exchange With Materials Property Data

October 12, 2021

Author(s)

A S. Varde, E F. Begley, S Fahrenholz-Mann

This paper describes the development and use of MatML, the Materials Markup Language. MatML is an emerging XML standard intended primarily for the exchange of...

Feasibiliy and Fidelity of Data Exchange Through IFC for Building Commissioning

October 12, 2021

Author(s)

Hongjun Wang, Burcu Akinci, J H. Garrett, K A. Reed

The building commissioning (BC) process ensures that the various interacting systems in a building are properly installed and operating. It is a process...

A Database-Assisted Design Approach for the Assessment of Wind Induced Torsional Effects on Tall Buildings

October 12, 2021

Author(s)

I Venanzi, William P. Fritz

Structures subjected to wind loads experience torsional moments due to the eccentricity of the time-dependent resultant aerodynamic load with respect to the...

Wind Speed Estimation Uncertainties: Effects of Climatological and Micrometeorological Parameters

October 12, 2021

Author(s)

S M. Diniz, Fahim H. Sadek, Emil Simiu

To achieve structures that are risk-consistent, structural reliability methods must be used that account for uncertainties with respect to the relevant...

A New Reactive Molecular Dynamics Model Of Polymer Pyrolysis

October 12, 2021

Author(s)

Stanislav Stoliarov, Kenneth D. Smith, P R. Westmoreland, Richard E. Lyon, Marc R. Nyden

In this paper, we report progress that has been made in the development of an extension of classical force-field-based molecular dynamics (MD) to the simulation...

Isochoric Heat Capacities of Ethanol-Water Mixtures at Temperatures from 280 K to 420 K and Pressures to 30 Mpa

October 12, 2021

Author(s)

Hiroshi Kitajima, N Kagawa, S Tsuruno, Joe W. Magee

Specific heat capacity at constant volume is one of the most important thermodynamic properties to develop and evaluate thermodynamic equations of state. With...

Detection of Smoke From Microgravity Fires

October 12, 2021

Author(s)

D L. Urban, DeVon Griffin, Gary Ruff, Thomas Cleary, Jiann C. Yang, George W. Mulholland, Zeng-guang Yuan

The history and current status of spacecraft smoke detection is discussed including a review of the state of understanding of the effect of gravity on the...

Interaction of Surface Free Energy and Humidity on AFM Tip-Sample Adhesion Measured by Chemical Force Microscopy

October 12, 2021

Author(s)

Lei Chen, Tinh Nguyen, Xiaohong Gu, D Julthongpiput, Michael J. Fasolka, Jonathan W. Martin

Microwave characterization of graphene inks

October 11, 2021

Author(s)

Jan Obrzut, Ana C. M. Moraes

Systematic charge transport characterization of solution-processed graphene inks using ethyl cellulose polymer as a binder/stabilizer, showed graphene patterns...

Accelerating Iterative Equation of State Calculations With Superancillary Phase Boundaries

October 11, 2021

Author(s)

Ian Bell

Iterative calculations are needed to obtain the natural variables of an equation of state from the given state variables when analyzing thermal systems...

DUAL DIELECTROPHORETIC ASSEMBLY OF CO-CULTURES FOR THE STUDY OF CELL MIGRATION INDUCED BY PHYSICAL INTERACTIONS

October 10, 2021

Author(s)

Brian J. Nablo, Darwin Reyes-Hernandez

We present the differences in cell migration patterns of endothelial cells when they physically interact with cancer cells through a porous membrane barrier (1...

Calculating Voxel-Polyhedron Intersections for Meshing Images

October 9, 2021

Author(s)

Stephen A. Langer, Andrew Reid

Finite element meshes constructed from 3D images are useful in materials science and medical applications when it is necessary to model the actual geometry of a...

Testing the similarity conditions in the CT measurement of additively manufactured lattice structures

October 8, 2021

Author(s)

Maxwell R. Praniewicz, Massimiliano Ferrucci, Jason Fox, Christopher Saldana

X-ray computed tomography (CT) enables the non-destructive measurement of hidden internal features that are inaccessible by tactile or optical coordinate...

Encryption is Futile: Reconstructing 3D-Printed Models using the Power Side-Channel

October 6, 2021

Author(s)

Jacob Gatlin, Sofia Belikovetsky, Yuval Elovici, Anthony Skjellum, Joshua Lubell, Paul Witherell, Mark Yampolskiy

Outsourced Additive Manufacturing (AM) exposes sensitive design data to external malicious actors. Even with end-to-end encryption between the design owner and...

Metamorphic Testing for Hybrid Simulation Validation

October 5, 2021

Author(s)

Mohammed Farhan, Caroline Krejci, Megan Olsen, M S Raunak

Proper validation of a simulation model is essential to have confidence on its accuracy and credibility. However, many of the most effective approaches for...

MULTI-COLLECTOR CONFIGURATION CONSIDERATIONS AND SUBSTRATE RELATIVE SENSITIVITY FACTOR EFFECTS FOR AGE-DATING MEASUREMENTS OF PARTICLES BY LARGE GEOMETRY SECONDARY ION MASS SPECTROMETRY

October 1, 2021

Author(s)

Todd Williamson, David S. Simons, John D. Fassett

Chronometry (a.k.a age-dating, AD) of materials by bulk mass spectrometric methods is a well-established technique based on analysis protocols that have been...

IN-SITU OBSERVATION SELECTION FOR QUALITY MANAGEMENT IN METAL ADDITIVE MANUFACTURING

October 1, 2021

Author(s)

Paul Witherell, Yan Lu

Metal additive manufacturing provides a larger design space with accompanying manufacturability than traditional manufacturing. Recently, much research has...

Validation of Aerosol Dynamics in a Well-Stirred Isothermal Enclosure

September 30, 2021

Author(s)

Amy Mensch, Thomas Cleary

Modeling of aerosol dynamics in fire simulations enables predictions of the effects of soot, such as visibility and detection, and the fate of soot, such as...

Lessons on Return to Function After the 2018 Cook Inlet Earthquake

September 30, 2021

Author(s)

Katherine Johnson, Siamak Sattar, Christopher Segura, Steven McCabe

The magnitude 7.1 Cook Inlet Earthquake of November 2018 greatly affected Anchorage, AK area residents. Although shaking likely did not exceed the hazard level...

DETERMINATION OF DISTORTION CORRECTIONS FOR A FIXED LENGTH OPTICAL CAVITY PRESSURE STANDARD

September 30, 2021

Author(s)

Jacob Edmond Ricker, Jay H. Hendricks, Kevin O. Douglass, Sarah White, Sergei Syssoev

Optical gas refractometry has enabled new pressure standards to be developed based on a dual Fixed Length Optical Cavity (FLOC) system. NIST in partnership with...

Model-Based Risk Analysis Approach for Network Vulnerability and Security of the Critical Railway Infrastructure

September 29, 2021

Author(s)

Himanshu Neema, Leqiang Wang, CheeYee Tang, Keith A. Stouffer, Xenofon Koutsoukos

This study focuses on threat modeling, vulnerability analysis, and risk management within the critical railway transportation infrastructure. The Railway...

Collapse estimates of U.S. code-compliant steel frames and implications for an ASCE 41 assessment

September 29, 2021

Author(s)

Matthew Speicher, Kevin K F Wong, Jazalyn Dukes

ASCE 41 is a standard that contains performance-based engineering procedures sometimes used to assess and retrofit existing structures. In 2015, the U.S...

Requirement elicitation for adaptive standards development

September 27, 2021

Author(s)

Marion Toussaint, Sylvere Krima, Allison Barnard Feeney, HERVE PANETTO

The recent digitization of manufacturing, also referred to as the fourth industrial revolution (or Industry 4.0), heavily relies on information standards for...

REALTIME UNCERTAINTY QUANTIFICATION VIA ULTRA-PRECISE PARTICLE MATCHING FOR HIGH-THROUGHPUT SERIAL CYTOMETRY

September 27, 2021

Author(s)

Matthew DiSalvo, Paul Patrone, Gregory A. Cooksey

A central paradigm in flow cytometry is the one-time optical interrogation of cells, a practice that has limited the ability to address important questions...

An Ice Storage Tank Modelica Model: Implementation and Validation

September 27, 2021

Author(s)

Guowen Li, Yangyang Fu, Amanda Pertzborn, Jin Wen, Zheng O'Neill

Energy storage systems have been gaining attention as a means of load management in grid-interactive efficient buildings. This study investigated the physics of...

The structure of medium-scale propane pool fires

September 23, 2021

Author(s)

Ryan Falkenstein-Smith, Kunhyuk Sung, Anthony Hamins

A series of time-averaged temperature, velocity, and gas species measurements are made along the centerline of propane fires established on a 37 cm diameter gas...

Toward specification of complex additive manufactured metal surfaces for optimum heat transfer

September 23, 2021

Author(s)

Kuldeep Mandloi, Christopher Evans, Jason Fox, Harish Cherukuri, Jimmie Miller, Angela Allen, David Deisenroth, Alkan Donmez

Metal additive manufacturing (AM) offers the possibility of incorporating cooling channels into components in high-temperature applications. Additionally, it...

A second-generation phi meter for global equivalence ratio and gas species concentration measurements

September 23, 2021

Author(s)

Ryan Falkenstein-Smith, Thomas Cleary

This work presents a second-generation phi meter capable of making simultaneous real-time measurements of the global equivalence ratio and combustion product...

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