Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 45 for “"Blast loads"”.
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The response of honeycomb sandwich panels to blast loads
… in search of structures providing better blast protection and to understand the various effects influencing the structural performance. This thesis reports on an investigation into the behaviour of circular sandwich panels with aluminium honeycomb cores subjected to air blast loading. It …
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Nonlinear Dynamic Response of Flexible Membrane Structures to Blast Loads
… deployable shelters (tent) to large external blast loads. Flexible shelters have been used as temporary storage places for housing equipments, vehicles etc. TEMPER Tents, Small Shelter System have been widely used by Air Force and Army, for various field applications. These shelters have …
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STRUCTURAL ASSESSMENT OF MULTIPLE STORY STEEL BUILDINGS SUBJECTED TO BLAST LOADS
… of Multiple Story Steel Buildings Subjected to Blast Loadsby: ANDREW APPELBAUMAbstract This research has been carried out in order to analyze the effects of blast loads on lateral force resisting systems in hardened multistory steel buildings. The results obtained are targeted towards improving …
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Response of Isotropic and Laminated Plates to Close Proximity Blast Loads
… response of various plate structures subject to blast loads is analyzed. In particular, simply supported isotropic and laminated composite plates are modeled using the commercial finite element code NASTRAN and the method of modal superposition. Both analysis procedures are used to quantify the …
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Behavior and design of steel-plate composite (SC) walls for blast loads
… have historically been the preferred choice for blast resistant structures because of their mass and the ductility provided by steel reinforcement. Steel-plate composite (SC) walls are a viable alternative to RC for protecting the infrastructure against explosive threats. SC structures consist of …
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Probabilistic models for blast parameters and fragility estimates of steel columns subject to blast loads
… probabilities of steel columns subject to blast loads. The framework considers the uncertainties in the blast phenomenon, the demands imposed on the column, and the capacities of the column for the limit states of flexure, local buckling and global buckling. As part of the work, we propose …
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The response of circular plates to repeated uniform blast loads an experimental and numerical study
On-going war and terrorist attacks contribute to a variety of impulsive loading of structures that often result in life changing injury or death. Improvised explosive devices (IEDs) and landmines accounted for 1761 deaths in Afghanistan during 2009 [1], with many more casualties as a result from …
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Finite element analysis and experimental validation of reinforced concrete single-mat slabs subjected to blast loads
… of reinforced concrete slabs subjected to blast loading as they can be used as protective structures around the main structure. An experimental investigation has been performed in a separate study involving blast-testing of 12 reinforced concrete slabs in a shock tube (Blast Load …
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Finite Element Analysis and Experimental Validation of Reinforced Concrete Single-Mat Slabs Subjected to Blast Loads
… of reinforced concrete slabs subjected to blast loading. A separate experimental study was performed involving twelve reinforced concrete (RC) slabs in a shock tube (Blast Load Simulator). Records from this experimental study were used for performing finite element analysis. Numerical …
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An innovative protective jacket for structures subject to blast loads: A comprehensive experimental and simulation study
… aids in the preservation of life safety during blast events is an important topic of research in structural engineering. This protection is especially vital for blast and explosion mitigation, where a vehicle-borne bomb or an improvised explosive device can readily cause an under-designed …
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The effect of stand-off distance on the failure of thin plates subjected to blast loads
… of fully clamped circular plates subjected to blast loads. The experimental procedure consists of creating a blast load using disc shaped plastic explosive mounted onto a tube of required length. The length of the tube is the stand-off distance. Different lengths of tubes are used ranging from …
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Alternate Load Paths and Retrofits for Long-span Truss Bridges under Sudden Member Loss and Blast Loads
… loadings generated by sudden member loss and the blast loads. Current existing design specifications have none or limited provisions that are related to structural design against the extreme loadings, therefore, their automatic extension to the protective design of long-span truss bridges to the …
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The response of singly curved fibre reinforced sandwich and laminate composite panels subjected to localised blast loads
… and laminate panels subjected to localised blast loads. The aim of the project was to investigate and compare the blast mitigation potential of each panel type and the influence of curvature on the response. Three radii of curvature were examined for both panel types, namely infinite (flat), …
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Behavior of reinforced concrete column-beam joint subjected to close in blast loads with polyurea and FRP sheets
… concrete (RC) column-beam joint under close-in blast loads using finite element modeling in LS-DYNA with an Arbitrary Lagrangian-Eulerian (ALE) formulation. Failure is captured through element erosion based on maximum principal strain. The study employs concrete with a compressive strength of …
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Circular plates subjected to localised blast loads : some insights into the mechanism of tearing and the energy required
… to experimental tests of plates subjected to blast loads with the intention of measuring the velocity of fragments and the subsequent modelling of the plates. A comparison of the results of the numerical and experimental results must be undertaken. An energy balance of the fractured plates …
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Finite Element Analysis of the Application of Synthetic Fiber Ropes to Reduce Blast Response of Frames
Blast resistance has recently become increasingly relevant for structural engineers. Blast loads are created by explosive devices that, upon detonation, create pressure loads that are much higher than most that a structure would ever experience. While there are many types of blast loads that are …
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Response of Wide Flange Steel Columns Subjected to Constant Axial Load and Lateral Blast Load
… flange steel columns subjected to constant axial loads and lateral blast loads was examined. The finite element program ABAQUS was used to model W8x40 sections with different slendernesses and boundary conditions. For the response calculations, a constant axial force was first applied to the …
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Design of bridges for security against terrorist attacks
… a bridge design to protect against terrorist blast loads.
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The Effectiveness of Seismically Designed Steel Framing Systems Subjected to Blast Loading
… designed steel structures subjected to blast loading is investigated. They are: a moment resisting frame (MRF), a concentrically braced frame (CBF) and an eccentrically braced frame (EBF). The blast loads are assumed to be unconfined, free air burst detonated 15 ft from one of the center …
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Innovative topics in structural engineering and real estate development : blast resistant facades & incentives for large-scale smart growth development
… Higher Mode Shapes on First-Crack Prediction for Blast-Resistant Glazing Systems: This study reviews the extent to which two commonly used assumptions in the design of blast-resistant glazing systems influence modeling results. Blast-resistant glazing designers typically model glazing by assuming …
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