- Title
- Reliability-based load factors for explosive blast loading
- Creator
- Stewart, Mark G.; Netherton, Michael D.
- Relation
- 6th International Conference on Design and Analysis of Protective Structures (DAPS 2017). Proceedings of the 6th International Conference on Design and Analysis of Protective Structures (DAPS 2017) (Melbourne, Vic. 29 November - 01 December, 2017)
- Relation
- Funding BodyARCGrant NumberDP160100855 http://purl.org/au-research/grants/arc/DP160100855
- Relation
- http://kdd.isti.cnr.it/daps2017
- Publisher
- DAPS
- Resource Type
- conference paper
- Date
- 2017
- Description
- Reliability-based design allows the decision-maker to select the level of reliability for a specific blast loading scenario, and key to this is an understanding of airblast uncertainty. Hence, explosive field trials have been conducted in Australia that measured the variability of free-field blast loading caused by military standard plastic explosives. The results have revealed a high level of variability of peak incident pressure and impulse for repeatable tests where variability would be expected to be a minimum. The P-Blast probabilistic blast load model is revised to capture these observed variabilities. The effect of a 20% mass-increase ‘safety factor’ typically applied to explosive mass on the probability of exceeding a design blast load is assessed. Reliability-based load factors are calculated where the nominal load is multiplied by the load factor to ensure that the actual load is equal to the reliability level. Reliability-based load factors are estimated for reliability levels of 0.05 to 0.99, for a range of scaled distances for military and civilian munitions.
- Subject
- blast loading; variability; probability; reliability; load factors
- Identifier
- http://hdl.handle.net/1959.13/1391535
- Identifier
- uon:33244
- Language
- eng
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