Analysis and Impact of Blast Load on Structural Elements
Jainu Karthik1, Dumpa Venkateswarlu2, Alamanda Sai Kumar3
1Jainu Karthik, Department of Civil Engineering, Godavari Institute of Engineering and Technology, Autonomous Rajahmundry (A.P), India.
2Dumpa Venkateswarlu, Department of Civil Engineering, Godavari Institute of Engineering and Technology, Autonomous Rajahmundry (A.P), India.
3Alamanda Sai Kumar, Department of Civil Engineering, Godavari Institute of Engineering and Technology, Autonomous Rajahmundry (A.P), India.
Manuscript received on 01 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript published on 30 May 2019 | PP: 3031-3036 | Volume-8 Issue-7, May 2019 | Retrieval Number: G6507058719/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Over the last few decades’ considerable attention has been raised on the engineering behavior of structure under the non-linear dynamic loadings like blast or impact loading. The explosions inside or near by a building leads to catastrophic damage on the building system and life. Not only the terrorist activity but also the accidental explosions like explosion of fuel tanks and LPG cylinders blast may also cause severe damage to the building structural system and leads to loss of life In general engineers design the building for the dynamic loads like earthquake and wind loadings. But in case of blast load the shock front impacts huge load on the frontal face of structural elements. Not only the shock fronts, the reflected pressure is multiples of the shock front pressure .As a result of such extreme blast loading conditions the building will fail, because the blast load act in the duration of milliseconds. So engineers and designers are worked to develop methods to analyze and design the structures resist to the blast loads. These studies enhance to understand the response of structural system subjected to blast loads. In this paper, two studies of concrete structures are presented. Both the studies focused on describing the response of the structural elements subjected to the blast load. In the first study the response in the structural elements (columns and shear walls) subjected to blast load from TNT explosion result from the terrorist activity. In the second study the comparison of response in the structural elements (columns and shear walls) which is cast with different grades of concrete are subjected to blast load from TNT explosion result from terrorist attacks. The finite element package ABAQUS was used for modelling and analyzing the elements. The analysis of the structure and structural elements subjected to blast loads require a précised in depth knowledge to understand the blast phenomenon and the non-linear dynamic response of the various structural elements. This gives a complete overview of the effects of explosion on structures.
Keyword: Non-Linear Dynamic Analysis, Shock Front, TNT Explosion, Blast Loading.
Scope of the Article: Structural Engineering