Standoff-mortar fragment velocity characterization before and after perforating conventional building walls

• Published in: International journal of impact engineering Vol. 35; no. 9; pp. 1043 - 1052
• Main Authors: de Béjar, L.A., Simmons, L., Davis, J.L.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01-09-2008; Elsevier Science
• Subjects: Applied sciences; Building structure; Buildings. Public works; Construction (buildings and works); Exact sciences and technology; Experimental verification of probabilistic models; Fracture mechanics (crack, fatigue, damage...); Fundamental areas of phenomenology (including applications); Masonry structure; Metal case fragmentation; Mortar detonation; Physics; Polymer industry, paints, wood; Residual velocity; Solid mechanics; Steel-concrete composite structure; Structural and continuum mechanics; Wall perforation; Wood; Wood. Paper. Non wovens; Experimental verification of probabilistic models; Metal case fragmentation; Residual velocity; Wall perforation; Mortar detonation; Statistical analysis; Detonation; Mortar; Probabilistic approach; Wood; Masonry; Metal; Experimental study; Modeling; Reinforced concrete; Fragmentation; Composite construction; Building wall; Brick; System identification; Steel concrete; Civil engineering
• ISSN: 0734-743X; 1879-3509
• DOI: 10.1016/j.ijimpeng.2007.06.002

In this work, analytical models are developed to predict mortar-induced impact and residual velocities of case fragments upon interaction with typical building walls. Theoretical models are experimentally verified and the intervening parameters identified. Multiple common structural wall materials are implemented in the experimental verification of statistical models: steel siding, wood studs, concrete masonry units, and solid brick panels. Examples of application lead to the construction of risk curves representing the probability of exceeding a specified threshold value of the residual fragment velocity upon wall perforation.