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The High Explosive Damage Assessment Model (HEXDAM) is designed to evaluate the damage caused to structures within a facility as a result of a primary explosion and any accompanying secondary explosions. The application can also predict injury to an unlimited number of personnel in the facility. The principal use of HEXDAM software is for site analysis of explosive storage and manufacturing facilities; however, the software can also be used to evaluate terrorism and sabotage threats to an industrial or military facility.

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.

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 for Windows capabilities include:

• Predicts blast damage to 104 basic structure types and user defined structures
• Predicts blast injury to 19 human body parts
• Compatible with BREEZE Vulnerability Assessment of Structurally Damaging Impulses and Pressures (VASDIP) software
• Predicts blast damage/injury to both overpressure-sensitive and dynamic pressure-sensitive structures
• Predicts shielding effects by each structure on surrounding structures
• Predicts blast damage/injury resulting from secondary explosions triggered by a primary blast
• Models individual structures and/or persons within a structure or facility
• Models elevated structures
• Automatic or user-specified subdivision of structures
• Generates pressure and damage/injury contours

VEXDAM
VEXDAM, the Vapor-cloud Explosion Damage Assessment Model, is designed to evaluate the damage caused to structures as a result of a primary explosion and accompanying secondary explosions from vapor clouds at any elevation. VEXDAM can be used to access damage to a multitude of structure types, including bridges, buildings, hangars, magazines, shelters, underground structures, industrial equipment, gas or oil storage tanks, and user-defined structures. Structures can be constructed of various building elements such as aluminum, asbestos, brick, concrete, glass, steel, and wood.

Like HEXDAM, BREEZE VEXDAM can predict injury to an unlimited number of personnel at a facility. For each person, the model predicts blast injury to 28 different body parts, including soft tissue (e.g., eardrums, larynx, lungs, etc.) and bones (skull, clavical, ribs, etc.).

VEXDAM applies recently developed dimensionless curves of overpressure of pulse duration versus range, based on the multi-energy method, to predict overpressure and impulse at the location where a structure or person resides. Damage to structures and injury to personnel is determined after calculating secondary explosion effects and the structure shielding, a method based on the advanced shielding algorithm. The principal use of VEXDAM software is for safety analysis of petrochemical fuel storage and refining/manufacturing facilities; however, the software can also be used to evaluate terrorism and sabotage threats to an industrial or military facility.

BREEZE VEXDAM for Windows capabilities include:

• Predicts blast damage to 104 basic structure types and user defined structures
• Predicts blast injury to 19 human body parts
• Compatible with BREEZE Vulnerability Assessment of Structurally Damaging
• Impulses and Pressures (VASDIP) software
• Predicts blast damage/injury to both overpressure-sensitive and dynamic pressure-sensitive structures
• Predicts shielding effects by each structure on surrounding structures
• Predicts blast damage/injury resulting from secondary explosions triggered by a primary blast
• Models individual structures and/or persons within a structure or facility
• Models elevated structures
• Automatic or user-specified subdivision of structures
• Generates pressure and damage/injury contours
• Models elevated vapor clouds

HEXDAM/VEXDAM uses vulnerability parameters provided by the companion product, VASDIP.
 

Tech Sheet
VASDIP

Purchasing
Breeze HEXDAM/VEXDAM Software, Service, and Support