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Search Publications by: Matthew Hoehler (Fed)

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Displaying 26 - 50 of 118

Distributed fiber optic measurements of strain and temperature in long-span composite floor beams with simple shear connections subject to compartment fires

May 1, 2021
Author(s)
Yanping Zhu, Matthew Klegseth, Yi Bao, Matthew Hoehler, Lisa Choe, Genda Chen
This study explores an instrumentation strategy using distributed fiber optic sensors to measure strain and temperature through the concrete volume in large-scale structures. Single-mode optical fibers were deployed in three 12.8 m long steel and concrete

Fire Hazards of Dry Versus Watered Christmas Trees

December 15, 2020
Author(s)
Matthew S. Hoehler, Matthew F. Bundy, Laurean A. DeLauter, Robin L. Materese, Leon Gerskovic, Jose R. Garcia
These experiments were designed to examine the difference in fire hazard between a dry Christmas tree and a watered Christmas tree for fire safety awareness. One dry tree (no water after harvesting) and one watered tree was tested with no replicates. The

Full-Scale Experiments to Demonstrate Flammability Risk of Residential Upholstered Furniture and Mitigation Using Barrier Fabric

December 11, 2020
Author(s)
Mauro Zammarano, Matthew S. Hoehler, John R. Shields, Andre L. Thompson, Ickchan Kim, Isaac T. Leventon, Matthew F. Bundy
In this work, we investigated fire growth in a furnished compartment intended to mimic a living room where a couch was the main fuel load. Three TB-117-2013 compliant and commercially available couches were procured. The couches were identical except for

Improved Video Capture for Severe Fire Environments

June 17, 2020
Author(s)
Matthew S. Hoehler
This short presentation shows the functional concept, Do It Yourself (DIY) construction details and select deployment examples for the current (May 2020) water-cooled live streaming camera systems (2D cameras) used to capture video footage in severe fires

Behavior and Limit States of Long-Span Composite Floor Beams with Simple Shear Connections subject to Compartment Fires: Experimental Evaluation

March 24, 2020
Author(s)
Lisa Y. Choe, Selvarajah Ramesh, William L. Grosshandler, Matthew S. Hoehler, Mina S. Seif, John L. Gross, Matthew F. Bundy
This paper presents the results of compartment fire experiments on four 12.8 m long composite floor beams with various end support conditions. Specimens were constructed as partially- composite beams, consisting of W18x35 steel beams and 83 mm thick

Compartment Fire Experiments on Long-Span Composite-Beams with Simple Shear Connections Part 1: Experiment Design and Beam Behavior at Ambient Temperature

October 22, 2019
Author(s)
Selvarajah Ramesh, Lisa Choe, Mina S. Seif, Matthew Hoehler, William L. Grosshandler, Ana Sauca, Matthew Bundy, William E. Luecke, Yi Bao, Matthew Klegseth, Genda Chen, John Reilly, Branko Glisic
The National Institute of Standards and Technology recently expanded its large-scale structural-fire testing capabilities in the National Fire Research Laboratory. A landmark test series was conducted on long-span steel-concrete composite floor beams

Measuring Temperature Distribution in Steel-Concrete Composite Slabs Subjected to Fire Using Brillouin Scattering Based Distributed Fiber Optic Sensors

August 7, 2019
Author(s)
Yi Bao, Matthew Hoehler, Christopher M. Smith, Matthew Bundy, Genda Chen
This study investigates temperature distributions in steel-concrete composite slabs subjected to fire using distributed fiber optic sensors. Several 1.2 m x 0.9 m composite slabs instrumented with telecommunication-grade single-mode fused silica fibers