The modelling and prediction of the behavior of reinforced concrete under impact load is still an engineering challenge. The scientific community has put a lot of effort into the development of this knowledge, especially after the unfortunate events of 09/11 in Manhattan. The paper presents the process of examining the behavior of concrete structures subjected to impact induced loading which might be caused by vessels collisions, such as aircraft fuel tanks. An experimental investigation has been carried out on reinforced concrete plates to develop a deeper understanding of the effect of impact damage. For characterizing the damage evolution and the degree of destruction, the impact damaged sample plates were investigated using planar tomography at the tomographic test stand at BAM. A variety of scan algorithms were developed and tested to find an optimal scan regime. The tomographically acquired measurement data was then used to reconstruct volumes of the damaged concrete plates. Post treatment of the results allows a quantitative damage description in a specific area of the plates. Further, ultimate load capacity tests were carried out to correlate the tomographically determined damage measures with the loss of load capacity after impact. A damage classification after impact based on the experimental results was created. In a second stage of the research study, modelling and analysis of structural damage for qualitative and quantitative characterization of crack damage will be carried out utilizing the results of the experimental investigations for model validation. Further experiments will be performed to improve analysis precision.
|Number of pages||10|
|Publication status||Published - Aug 2017|
|Title||24th International Conference on Structural Mechanics in Reactor Technology|
|Duration||20 - 25 August 2017|
|Degree of recognition||International event|
|Country||Korea, Republic of|