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Title Blast Performance of Protective Panels using 3D DIC and High Speed Photography
Author Ólafsson, Ólafur Magnús (Coastal, Maritime and Structural Engineering, Department of Mechanical Engineering, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
Supervisor Berggreen, Christian (Coastal, Maritime and Structural Engineering, Department of Mechanical Engineering, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
Institution Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark
Thesis level Master's thesis
Year 2011
Abstract In this project the response of protective panels to explosive loading is measured with a 3D digital image correlation technique associated with a high speed camera system and compared to measured values. A series of experimental blast tests were performed on mild steel specimens, S235, with dimensions of 600 x 600 mm and ranging in thicknesses from 2 to 5 mm. The effects of varying the amount of explosives and stand off distances were investigated. Few composite blast experiments were performed additionally on plain weave glass polypropylene with the same in plane dimensions with thicknesses of 18 mm. A development of a finite element numerical models was performed in order to predict the response and failure of specimens subjected to explosive loading. The explicit solver LS-Dyna was applied to model the dynamic non linear transient behavior while the blast model Conwep was applied in order to simulate the explosive event. An experimental blast facility was established where scaled blast experiments were performed within a blast box in a controlled environment.
Imprint Technical University of Denmark (DTU) : Kgs. Lyngby, Denmark
Pages 192
Keywords Blast loading; Deformation; Digital image correlation; Aramis; Speckle pattern; Numerical modelling; LS-DYNA; Conwep; ANSYS; LS-PrePost
Fulltext
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Admin Creation date: 2011-12-14    Update date: 2011-12-14    Source: dtu    ID: 314437    Original MXD