Activated CFRP NSMR Ductile Strengthening System

Jacob Wittrup Schmidt*, Christian Overgaard Christensen, Per Goltermann, José Sena-Cruz

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingBook chapterResearchpeer-review

1 Citation (Scopus)
3 Downloads (Pure)

Abstract

This paper presents some of the initial results from an ongoing research project which concerns a new NSMR strengthening method, expected to provide high ductility and strengthening effect as well as increased response consistency. A prestress of 1100 MPa activation was applied to the ductile NSMR system and compared to a reference beam. Ductility in this system is provided by a response controlling anchorage system, which interacts with the adhesively bonded NSMR. The proposed adhesive has a low E-modulus which is expected to reduce stress concentration issues of adhesively bonded joints when compared to stiffer epoxy adhesives are used, where IC-debonding seems to be the dominating failure mode. A beam deflection increase of approximately 105% has been observed when using the low E-modulus adhesive compared to the the epoxy adhesive. Change in the failure modes were furthermore observed, where the brittle de-bonding failure modes were mitigated thus extending the yielding regime with approximately 150%.

Original languageEnglish
Title of host publicationProceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020) : Service Life Extension of Existing Structures
EditorsJosé Sena-Cruz, Luis Correia, Miguel Azenha
Number of pages13
Volume3
PublisherSpringer
Publication date2022
Pages349-361
ISBN (Print)978-3-030-76464-7
ISBN (Electronic)978-3-030-76465-4
DOIs
Publication statusPublished - 2022
Event3rd RILEM Spring Convention and Conference (RSCC 2020) - Guimarães, Portugal
Duration: 10 Mar 202014 Mar 2020
Conference number: 3

Conference

Conference3rd RILEM Spring Convention and Conference (RSCC 2020)
Number3
Country/TerritoryPortugal
CityGuimarães
Period10/03/202014/03/2020
SeriesRILEM Bookseries
Volume34
ISSN2211-0844

Bibliographical note

Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Keywords

  • Activation
  • Anchorage
  • CFRP
  • Ductility
  • Ductility mechanism
  • Flexible adhesive
  • NSMR
  • Strengthening

Fingerprint

Dive into the research topics of 'Activated CFRP NSMR Ductile Strengthening System'. Together they form a unique fingerprint.

Cite this