Pilot evaluation of a fracture process zone in a modified compact tension specimen by X-ray tomography

Jiri Klon; Stanislav Seitl; Hana Simonova; Zbynek Kersner; Ivana Kumpova; Daniel Vavrik

doi:10.3221/IGF-ESIS.42.17

Pilot evaluation of a fracture process zone in a modified compact tension specimen by X-ray tomography

Authors

Jiri Klon Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic http://orcid.org/0000-0002-9551-2185
Stanislav Seitl Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic http://orcid.org/0000-0002-4953-4324
Hana Simonova Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic http://orcid.org/0000-0003-1537-6388
Zbynek Kersner Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic http://orcid.org/0000-0003-4724-6166
Ivana Kumpova Institute of Theoretical and Applied Mechanics AS CR, v. v. i., Prosecká 809/76, 190 00 Praha 9, Czech Republic http://orcid.org/0000-0001-8556-4996
Daniel Vavrik Institute of Theoretical and Applied Mechanics AS CR, v. v. i., Prosecká 809/76, 190 00 Praha 9, Czech Republic http://orcid.org/0000-0002-8599-9903

DOI:

https://doi.org/10.3221/IGF-ESIS.42.17

Keywords:

Fracture process zone, X-ray, Concrete, Composites, Compact tension specimen, Stress intensity factor

Abstract

In the case of quasi-brittle material, there is a zone of non-linear behaving material, near the crack tip. A major part of this zone forms a socalled fracture process zone (FPZ), where mechanisms of material toughening take place. The main idea is to estimate the size of the fracture process zone under various types of load by using X-ray tomography. The estimation of the zone is supported by the theory of linear elastic fracture mechanics (LEFM) that could be a limit case of quasi-brittle mechanics. The size of the zone envelop is provided in X-ray snaps and compared with the theoretical size from LEFM.

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Published

29-09-2017

Issue

Vol. 11 No. 42 (2017): October 2017

Section

Miscellanea

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

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How to Cite

Pilot evaluation of a fracture process zone in a modified compact tension specimen by X-ray tomography. (2017). Frattura Ed Integrità Strutturale, 11(42), Pages 161-169. https://doi.org/10.3221/IGF-ESIS.42.17