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Fire

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Displaying 126 - 150 of 7699

Fire Performance of Upholstery Materials: Correlation between Cube Test and Full-Scale Chair Mock-Ups

November 17, 2021

Author(s)

Mauro Zammarano

In our previous work, the fire performance of seven upholstery materials combinations - including six barrier fabrics, one cover fabric and one flexible polyurethane foam - was assessed by (1) full-scale chair mock-up tests and (2) a newly developed bench

A Generic Flashover Prediction Model for Residential Buildings Using Graph Neural Network

November 11, 2021

Author(s)

Wai Cheong Tam, Eugene Yujun Fu, Paul A. Reneke, Richard D. Peacock, Thomas Cleary

A generic graph neural network-based model is developed to predict the potential occurrence of flashover for different building structures. The proposed model transforms multivariate temperature data into graph-structure data. Utilizing graph convolution

A Case Study of the Camp Fire - Fire Progression Timeline; Appendix C. Community WUI Fire Hazard Evaluation Framework

November 5, 2021

Author(s)

Alexander Maranghides, Eric Link, William Mell, Steven Hawks, Mike Wilson, Will Brewer, Christopher U. Brown, Robert Vihnaneck, William Walton

A Continuum-Atomistic Simulation of Heat Transfer in Micro- and Nano-Flows

October 12, 2021

Author(s)

J Liu, S Chen, Xiaobo Nie, M O. Robbins

We develop a hybrid atomistic-continuum scheme for simulating micro- and nano- flows with heat transfer. The approach is based on spatial ''domain decomposition'' in which molecular dynamics (MD) is used in regions where atomistic details are important

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 structures elastic center. We refer to such moments as aerodynamic torsional moments. In structures

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 of chemical reactions. We review several studies of polymer pyrolysis that were performed using

A Reactive Molecular Dynamics Model of Thermal Decomposition in Polymers: II. Polyisobutylene

October 12, 2021

Author(s)

S I. Stoliarov, R Lyon, Marc R. Nyden

This is the second manuscript in a series of publications continuing the development and application of a method for investigation of the thermal decomposition of polymeric materials. This method, which is called reactive molecular dynamics, belongs to a

An Algorithm for Computing the Compressive Strength of Heterogeneous Cohesive-Frictional Materials - Application to Cement Paste

October 12, 2021

Author(s)

F P. Ganneau, F -. Ulm, J Gondzio, Edward Garboczi

An algorithm based on a finite element discretization of the lower bound yield theorem is applied to digital images, which allows the determination of the compressive strength of highly heterogeneous materials following a Drucker-Prager (or Mohr-Coulomb)

Applications of Fire Calorimetry A Round Table Discussion Held at the University of Edinburgh, Scotland 8th July 2004

October 12, 2021

Author(s)

R Lyon, T R. Hull, Marc R. Nyden

This document summarizes the discussions during a meeting that was convened to bring together fire scientists and engineers familiar with fire calorimeters and the use of fire calorimeter data for estimating the fire hazard of materials. The objectives of

Computations of Particle Surface Characteristics Using Optical and X-Ray CT Images

October 12, 2021

Author(s)

E Masad, S Saadeh, T Al-Rousan, Edward Garboczi, D Little

The description of particle surface characteristics is of interest in many disciplines in science and engineering such as powder technology, geology, soil science, and infrastructure materials. Consequently, there is a need to develop methods to quantify

Consistent Estimation of Poisson Intensity in the Presence of Dead Time

October 12, 2021

Author(s)

S X. He, Grace L. Yang, K T. fang, J F. Widmann

Phase Doppler Interferometry (PDI) is a non-intrusive technique frequently used to obtain information about spray characteristics. Understanding spray characteristics is of critical importance in many areas of science, including liquid fuel spray

Database Tools for Modeling Emissions and Control of Air Pollutants From Consumer Products, Cooking, and Combustion

October 12, 2021

Author(s)

Cynthia H. Reed, Brian Polidoro

In order to estimate building contaminant concentration levels and associated occupant exposures, indoor air quality (IAQ) model users require data related to source strengths and other contaminant transport mechanisms (e.g. sinks, filters). Much of this

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 resultant smoke particle size. The results from a spacecraft experiment (Comparative Soot Diagnostics