New York, New York (March 22, 2016 ) – Stone Security Engineering, P.C., the woman-owned small business specializing in protecting people and property from accidental and manmade hazards, announced today that Mr. Richard Galli, PE is now an Associate Principal and co-owner of the company. “This is a major milestone for Stone, and moves us one step […]
Industry Developments
WeWork ‘Creator’ Article
I want to thank WeWork ‘Creator’ Magazine for writing such a nice article on us. Check it out here
SDOF vs FEA
When looking at structural design or analysis for response to blast loading, there are two basic analytic approaches that are commonly implemented: Dynamic Single-Degree-of-Freedom Analysis and Dynamic Finite Element Analysis. Dynamic Analysis Dynamic analysis is used when dealing with blast loads. This type of analysis assumes that the load is applied instantaneously (or nearly so), […]
Time Matters: Blast Loads Defined by their “Time History”
Blast loads are defined by their “time history,” which is the trace of over-pressure throughout the load duration. An idealized blast time history is shown in the figure below (after UFC 3-340-01): The pressure (relative to ambient) is on the vertical axis and time is on the horizontal axis. The blast duration is generally taken […]
Six Steps to Specifying Blast Products
The world of blast protection has been rapidly expanding and there are now numerous products and approaches to provide protection from explosive attack. Where there used to be two solutions, there may now be ten. It is critical that security and design professionals understand the strengths and limitations of the various mitigation measures, and how […]
Blast Basics
An explosion is a rapid release of energy in the form of light, heat, sound, and a shock wave. The shock wave travels outward, in all directions, from the source of the explosion and is the primary source of building damage considered in blast resistant design. The duration of the shock wave is very short, […]