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Target hardening, also referred to simply as hardening when made clear by the context, is a term used by police officers, those working in security, and the military referring to the strengthening of the security of a building or installation in order to protect it in the event of attack or reduce the risk of theft.
Surface carburizing, or case hardening, is one example of solid solution strengthening in which the density of solute carbon atoms is increased close to the surface of the steel, resulting in a gradient of carbon atoms throughout the material. This provides superior mechanical properties to the surface of the steel without having to use a ...
This hostile vehicle mitigation is a common form of target hardening and is designed to prevent a vehicle being rammed into the building or into people on the pavement next to the building. It also enforces a zone of protective stand-off from any explosive detonation location.
The Nonprofit Security Grant Program (NSGP), previously the Urban Areas Security Initiative Nonprofit Security Grant Program (UASI NSGP), is a grant program administered by the United States Department of Homeland Security (DHS) that provides funding for target hardening and physical security enhancements to non-profit organizations at high risk of terrorist attack.
At 0-D there is precipitate and solid solution strengthening with particulates strengthening structure, at 1-D there is work/forest hardening with line dislocations as the hardening mechanism, and at 2-D there is grain boundary strengthening with surface energy of granular interfaces providing strength improvement.
Hardening is a metallurgical metalworking process used to increase the hardness of a metal. The hardness of a metal is directly proportional to the uniaxial yield stress at the location of the imposed strain. A harder metal will have a higher resistance to plastic deformation than a less hard metal.
Target hardening through shielding or materials selection was thought to be impractical or ineffective in 1984, [2] especially if the beam could sustain full power and precise focus on the target. [3] Neutral particle beams with much lower beam power could also be used to detect nuclear weapons in space non-destructively. [4]
A more sophisticated target-hardening approach must consider industrial and other critical industrial infrastructure that could be attacked. Terrorists do not need to import chemical weapons if they can cause a major industrial accident such as the Bhopal disaster or the Halifax Explosion. Industrial chemicals in manufacturing, shipping, and ...