Tomographic and load test investigations for post-impact damage characterization of RC plates

Research output: Contribution to conferencesPaperContributedpeer-review

Contributors

  • Falk Hille - , Federal Institute for Materials Research and Testing Berlin (Author)
  • Gilberto Nery - , Federal Institute for Materials Research and Testing Berlin (Author)
  • Tino Kühn - , Chair of Special Concrete Structures (Author)
  • Marcus Hering - , Chair of Concrete Structures (Author)
  • Martin Tschaikner - , Federal Institute for Materials Research and Testing Berlin (Author)
  • Bernhard Redmer - , Federal Institute for Materials Research and Testing Berlin (Author)
  • Andreas Rogge - , Federal Institute for Materials Research and Testing Berlin (Author)
  • Manfred Curbach - , Chair of Concrete Structures (Author)

Abstract

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.

Details

Original languageEnglish
Number of pages10
Publication statusPublished - Aug 2017
Peer-reviewedYes

Conference

Title24th International Conference on Structural Mechanics in Reactor Technology
Abbreviated titleSMIRT24
Conference number
Duration20 - 25 August 2017
Degree of recognitionInternational event
Location
CityBusan
CountryKorea, Republic of

External IDs

ORCID /0000-0002-1596-7164/work/111044182
ORCID /0000-0003-2440-5670/work/142236540
ORCID /0000-0002-9010-2734/work/161410010

Keywords