Monitoring concept for the propagation of compressive fatigue in externally prestressed concrete beams using digital image correlation and fiber optic sensors

Research output: Contribution to journalResearch articleContributedpeer-review



The fatigue of concrete has been the subject of research for many years, and yet, there are still open questions. In particular, the fatigue-induced damage evolution accompanied by a stress redistribution process propagating through the concrete structure is still not fully understood. So far, there are only few experimental studies addressing the fatigue propagation through a material zone occurring, for example, in beams with a pulsating, nonuniform stress profile. To investigate the influence of such stress configurations on the material and structural degradation process, a measuring concept has been developed combining digital image correlation, fiber optic sensors, and conventional strain gauges. The presented experiments visualize the propagating fatigue degradation in the compression zone of prestressed concrete beams subjected to fatigue loading. Based on the developed measurement concept, the quantitative foundation for a comprehensive validation of design rules and material models accounting for concrete fatigue can be significantly extended.


Original languageEnglish
Number of pages13
JournalFatigue and Fracture of Engineering Materials and Structures
Issue number2
Publication statusPublished - 14 Nov 2022

External IDs

WOS 000883183500001
ORCID /0000-0001-8735-1345/work/142244600


Research priority areas of TU Dresden

Subject groups, research areas, subject areas according to Destatis


  • bending, compression, concrete, digital image correlation (DIC), fatigue, fiber optic sensors (FOS), strain development, Compression, Bending, Fatigue, Concrete, Strain development