Investigation of multiple impact-damaged reinforced concrete structures as a reference for liquid penetration behavior and tomographic studies

Research output: Contribution to conferencesPaperContributedpeer-review

Contributors

  • Marcus Hering - , Federal Institute for Materials Research and Testing Berlin (Author)
  • Georg Fiedler - , Federal Institute for Materials Research and Testing Berlin (Author)
  • Thomas Schubert - , Chair of Concrete Structures (Author)
  • Falk Hille - , Federal Institute for Materials Research and Testing Berlin (Author)
  • Götz Hüsken - , Federal Institute for Materials Research and Testing Berlin (Author)
  • Birgit Beckmann - , Chair of Concrete Structures (Author)
  • Marcel Grunwald - , 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)

Abstract

The structural integrity of outer reinforced concrete (RC) containments of nuclear power plants provides an essential shield against external hazards. If this containment is damaged by an impact event, such as an aircraft crash, the question arises to which degree the reinforced concrete containment still has its protective capability. This concerns both purely structural protection and protection against liquids penetrating the interior of the containment. Due to the dimensions of the containment structures, it is difficult to perform real scale impact experiments, so in the past decades plate geometries at medium scale have been used for investigations. Detailed investigations on the structural behaviour of RC members or RC plates subjected to impact loading have already been presented in Just et al. [1], Hering [2], Hering et al. [3-5], Bracklow et al. [6; 7], Hille et al. [8] and Nerger et al. [9]. The following investigations deal with the single and multiple impact event (first hard impact and/or subsequent soft impact) on a RC specimen, which provides the basis for further investigations. A description of the test setup and the test procedure as well as a presentation of the test results from the impact tests are provided. Furthermore, the experimental program is presented, which the damaged RC specimens are to undergo to deal with the question of how much the impact-damaged RC structure has become permeable to liquid media, such as water and kerosene, depending on the intensity of the impact. The aim of these following investigations is to develop a test setup that can be applied to investigate the liquid penetration behaviour (LPB) of small, medium, and large-scale RC members. In addition to the liquid penetration experiments, the damaged specimens are to be examined by planar tomography to obtain the damage inside the specimen. The combination of damaging event, fluid penetration behaviour and tomography should enable a comprehensive understanding of the damage to the RC specimen.

Details

Original languageEnglish
Number of pages10
Publication statusPublished - 6 Mar 2024
Peer-reviewedYes

Conference

Title27th International Conference on Structural Mechanics in Reactor Technology
Abbreviated titleSMiRT 27
Conference number
Duration3 - 8 March 2024
Website
Degree of recognitionInternational event
LocationPACIFICO Yokohama
CityYokohama
CountryJapan

External IDs

ORCID /0000-0001-6916-0086/work/159170994
ORCID /0000-0003-2440-5670/work/159171260
ORCID /0000-0001-6666-5388/work/159171830

Keywords

Keywords

  • impact, aircraft impact, dynamic simulation, impact, multible impact, concrete structures, hard and soft impact, experimental investigation