PSI - Issue 14

S.Thalapathi Raj et al. / Procedia Structural Integrity 14 (2019) 395–402 S Thalapathi Raj / Structural Integrity Procedia 00 (2018) 000 – 000

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6) The damage to each structure, as well as the injury to each personnel can be presented graphically using a color-coding scheme. 7) The overpressure levels at various points can be derived from the contour maps and over pressure & dynamic pressure values from the output reports. 3. Open Experimental Bay Building set up The explosive testing experimental bay building set up is explained in this section. The Open experimental bay (Size 5m X 5m) is surrounded by three sided 4m high blast wall made of brick with thickness of 345mm. The fourth side of the bay is also covered with same blast wall at an offset distance of 1.5m for providing entry and exit route for the experimental bay. The top of the bay is covered by a steel mesh of 10mmX 10mm size. The wall of the building facing the blast wall is at a distance of 1.5m and having the same thickness of 345mm. The maximum amount of the explosive to be tested in the centre of the experimental bay of this facility is around 500gm of TNT Equivalent at 1m above the ground. The set up is shown in the fig 1

Fig: 1 Explosive testing experimental facility

3.1 Modelling of Structural Components The Detonics study experimental bay building along with the facility building mentioned earlier was modelled in the software and necessary inputs data about the structural components are given as per the trial set up shown in the figure. The before blast status of the building is replicated in the figures 2 & Fig 3.

3.2 High Explosive Damage Modelling

The building set up is subjected to the explosive loading of 500 gm equivalent TNT at the height of 1m and the structural damages to the experimental bay and the nearby facilities are analysed. The modeling is taken into account of the following considerations:  Pressure effects  Shielding effects & Secondary explosions  Pulse duration effects