Prefabricated modular housing structures have become a promising alternative to site-built structures with equal or higher engineering quality and durability. Major advantages of this technology are fast and cost-efficient construction, reduced labor requirements, and superior quality control due to factory production. The modular design of these prefabricated structures offers the opportunity ...

National Institute of Standards and Technology, Gaithersburg, MD 20899-0001 This paper presents the results of heat flux sensor calibrations in two blackbody facilities: the 25 mm variable temperature blackbody (VTBB) primary facility and a recently developed 51 mm aperture spherical blackbody (SPBB) facility. Three Schmidt-Boelter gages and a Gardon gage were calibrated with reference to an el...

Aluminum alloy AA6061 is of interest to the US Navy for ship structure applications due its light weight, ease manufacturing, corrosion resistance and strength. However, response complex loading subsequent fire damage presents a concern practical applications. The purpose this study evaluate effect on microstructure material with applied tensile, torsional, combined loading. Fire exposure was s...

T next article in our series is a case report written in 1848 by John M. Harlow, M.D., describing his care of Mr. Phineas Gage, who suffered an extreme injury to the frontal cortex. Mr. Gage was employed as a railroad worker in Vermont and fell victim to a freak accident that involved a long metal rod called a tamping iron. This rod was used to pack sand over an explosive charge, which was used...

Compliance equations based on back-face strain or crack mouth opening displacement, and potential drop techniques are widely used to calculate fatigue growth rate. Standard ASTM E647 for rate testing does not include compliance single edge notched four-point bending (SENB-4P) specimens. Equations developed finite element (FE) analysis have been reported in literature; however, they limited the ...