HExDAM
BREEZE HExDAM is designed to be used as a damage / injury assessment tool to determine the amount of blast damage / injury done to individual structures / persons caused by the detonation of High Explosives at ground-level or at a specified height above the ground. HExDAM has the capability to model an unlimited number of structures, each with different dimensions and structural properties, including elevated structures, and also an unlimited number of personnel. The new HExDAM user interface provides a robust, user friendly model editor to create highly detailed and "life-like" models, 3D Results Visualization and Analysis, and sophisticated and highly efficient project and file management functionality.
HExDAM utilizes widely accepted dynamic pressure and overpressure curves to predict the pressure level at each structure/person location. Structure shielding, based on the three-doublet advanced shielding algorithm, and secondary explosion effects are calculated, and damage/injury levels are determined for each structure/person. HExDAM produces output in the form of damage/injury tables, before-blast and after-blast displays, pressure and damage/injury contour plots, and damage/injury-versus-distance graphs, all in color. Advanced graphical features include three-dimensional graphics in the form of oblique projections, as well as two-dimensional horizontal and vertical cross sections for both pressure contour and damage/injury contour plots.
BREEZE HExDAM is a high speed numeric simulator designed to predict:
- Blast damage to 104 pre-defined structure types and an unlimited number of user defined structures and materials
- Blast injury to the human body via the "HExDAM Man" human injury assessment mode
- Blast damage/injury to both overpressure-sensitive and dynamic pressure-sensitive structures
- Shielding effects attributable to each structure on surrounding structures
- Blast damage/injury resulting from secondary explosions triggered by a primary blast
- Spatial propagation and distribution of over-pressure and dynamic pressure around and through "block model" structures.
In a BREEZE HExDAM scenario analysis, a primary explosion is specified within or about a facility consisting of one or more structures and/or persons. Pressures received by each structure/person in the facility are calculated based on each structure's/person's location relative to the primary explosion, as well as, any secondary explosion. The effects of structures/persons shielding one another may also be taken into account.
The damage/injury occurring to each structure/person is then calculated based on the magnitude of the pressure it received and its ability to withstand the pressure. In addition to the calculations of pressures and damages/injuries occurring at the structures/persons within the facility, the user may overlay a grid (either 2-D or 3-D) over the facility to calculate pressures that occur at these locations. In a similar manner, the user may overlay a grid within specific structures/persons in order to analyze the distribution of damage/injury within the structures/persons.