Impact damage monitoring of FRP pressure vessels based on impact force identification

Satoshi Atobe, Sunao Sugimoto, Ning Hu, Hisao Fukunaga

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


In this paper, a method for monitoring impact damage of FRP pressure vessels is discussed. To estimate the location and extent of the impact damage, strains are measured at several locations on the surface of the structure, and impact force identification is performed using those data so as to obtain information on the impact which caused the damage. The location and force history of the impact are identified using an identification method based on experimental transfer matrices which relate the impact force to the corresponding strain responses. Here, experimental transfer matrices are determined from the measured data acquired by impact tests that do not wreak impact damages. The location of the impact damage is predicted from the identified impact location. As to the extent of the impact damage, the peak value and the duration of the identified force history are used to estimate the damage initiation and the damage size, respectively. In order to examine the validity of the method, monitoring of impact damages induced by drop-weight impact tests is demonstrated.

Original languageEnglish
Pages (from-to)491-505
Number of pages15
JournalAdvanced Composite Materials
Publication statusPublished - 2014 Oct 1


  • FRP pressure vessel
  • force history
  • identification
  • impact damage
  • impact location
  • structural health monitoring

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering


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