ExpSAFE: Blast

ExpSAFE Blast Calculator Pro has been developed to enable blast analysis for Class 1 Explosives in order to support 'quick-scan' safety assessments.  This application is classified as a Level 1 Safety Analysis tool. Note the blast overpressure calculations were validated against US Army Technical Manual 5-855-1 ‘Fundamentals for protective design for conventional weapons’ (CONWEP). CONWEP is a recognised and appropriate modelling tool for calculating blast effects and is a well-validated model.
 
FEATURES OF THIS VERSION

This professional edition provides the following functionality:

* Ability to determine the blast effective yield based on Net Explosive Quantity and the TNT equivalence assigned to the type of explosives being consideration.
* Calculate the Blast Scaling factor based on the effective yield of explosives and the distance between the detonation and point of interest. Also included is the ability to toggle between imperial and metric units for input and output parameters.
* View a range of predicted hemisphere blast wave characteristics such as overpressure and impulse.  Note the results do not take into account munition case, shape, or structures around the point of detonation. Also included is the ability to toggle between pressure units Pascals and PSI when viewing blast outcome parameters.
* Display a brief summary of injury threshold distances based on scenario details, including estimated Sound Pressure Level (SPL) and 140 dB threshold distance.
* Displays a brief summary of damage threshold distances based on scenario details, including categories of damage.
* Estimate explosive yield of a gas vessel by taking it consideration the gas energy of explosion to determine it's TNT equivalency.

Disclaimer Statement

The information used within this app have been drawn from a range of open source material, including that contained in UNODA document IATG 10.80: Formulae for Ammunition Management (with their permission). The application outcomes have been technically validated as far as reasonably possible by the developer. Nevertheless the user should be aware of this limitation when utilising the results provided by this application and understand this app is for advisory use only; it has NOT been authoritative approved for explosive safety related analysis or decision-making assessments. The author and developer cannot be held responsible for any mishap or accident resulting from decisions supported by this application.