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Investigation of the fracture cracking behavior of self-healing systems by use of optical and acoustic experimental methods

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Abstract
Nowadays the self-healing process efficiency in loaded structural materials is evaluated by studying the damage mechanisms. Based on fracture mechanics theories, the resistance to damage and the cracking recovery can be an indication of healing performance. Experimentally, the cracking behavior is quantified by measuring the fracture energy of the material during cracking and the fracture process zone area at which the damage is expanded. In literature, damage detection at loading stage of testing and damage recovery due to healing mechanisms at the reloading stage is monitored by application of several experimental (Non-) Destructive Methods. In this study, the Fracture Process Zone (FPZ) in different heterogeneous materials (polymer and cementitious composites) is visualized in strain and deformation (crack opening-close-reopening) profiles of the crack tip area by application of Digital Image Correlation (DIC) and the fracture energy released in different stages of cracking is quantified and located by Acoustic Emission (AE). The combination of the aforementioned optical and acoustic techniques can confirm the recovery of cracked specimens in which healing mechanisms are applied.
Keywords
cracking deformations, fracture parameters, NDT methods, acoustic emission, digital image correlation, Self-healing, mechanical characterization

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Chicago
Tsangouri, E, Kim Van Tittelboom, Xander Hillewaere, D Van Hemelrijck, Nele De Belie, and Filip Du Prez. 2013. “Investigation of the Fracture Cracking Behavior of Self-healing Systems by Use of Optical and Acoustic Experimental Methods.” In ICSHM 2013 : 4th International Conference on Self-healing Materials, ed. Nele De Belie, Sybrand van der Zwaag, Elke Gruyaert, Kim Van Tittelboom, and Brenda Debbaut, 726–729. Ghent, Belgium: Ghent University. Magnel Laboratory for Concrete Research.
APA
Tsangouri, E, Van Tittelboom, K., Hillewaere, X., Van Hemelrijck, D., De Belie, N., & Du Prez, F. (2013). Investigation of the fracture cracking behavior of self-healing systems by use of optical and acoustic experimental methods. In Nele De Belie, S. van der Zwaag, E. Gruyaert, K. Van Tittelboom, & B. Debbaut (Eds.), ICSHM 2013 : 4th international conference on self-healing materials (pp. 726–729). Presented at the 4th International conference on Self-Healing Materials (ICSHM 2013), Ghent, Belgium: Ghent University. Magnel Laboratory for Concrete Research.
Vancouver
1.
Tsangouri E, Van Tittelboom K, Hillewaere X, Van Hemelrijck D, De Belie N, Du Prez F. Investigation of the fracture cracking behavior of self-healing systems by use of optical and acoustic experimental methods. In: De Belie N, van der Zwaag S, Gruyaert E, Van Tittelboom K, Debbaut B, editors. ICSHM 2013 : 4th international conference on self-healing materials. Ghent, Belgium: Ghent University. Magnel Laboratory for Concrete Research; 2013. p. 726–9.
MLA
Tsangouri, E, Kim Van Tittelboom, Xander Hillewaere, et al. “Investigation of the Fracture Cracking Behavior of Self-healing Systems by Use of Optical and Acoustic Experimental Methods.” ICSHM 2013 : 4th International Conference on Self-healing Materials. Ed. Nele De Belie et al. Ghent, Belgium: Ghent University. Magnel Laboratory for Concrete Research, 2013. 726–729. Print.
@inproceedings{5741135,
  abstract     = {Nowadays the self-healing process efficiency in loaded structural materials is evaluated by studying the damage mechanisms. Based on fracture mechanics theories, the resistance to damage and the cracking recovery can be an indication of healing performance.
Experimentally, the cracking behavior is quantified by measuring the fracture energy of the material during cracking and the fracture process zone area at which the damage is expanded. In literature, damage detection at loading stage of testing and damage recovery due to healing mechanisms at the reloading stage is monitored by application of several experimental (Non-) Destructive Methods.
In this study, the Fracture Process Zone (FPZ) in different heterogeneous materials (polymer and cementitious composites) is visualized in strain and deformation (crack opening-close-reopening) profiles of the crack tip area by application of Digital Image Correlation (DIC) and the fracture energy released in different stages of cracking is quantified and located by Acoustic Emission (AE). The combination of the aforementioned optical and acoustic techniques can confirm the recovery of cracked specimens in which healing mechanisms are applied.},
  author       = {Tsangouri, E and Van Tittelboom, Kim and Hillewaere, Xander and Van Hemelrijck, D and De Belie, Nele and Du Prez, Filip},
  booktitle    = {ICSHM 2013 : 4th international conference on self-healing materials},
  editor       = {De Belie, Nele and van der Zwaag, Sybrand and Gruyaert, Elke and Van Tittelboom, Kim and Debbaut, Brenda},
  isbn         = {9789082073706},
  language     = {eng},
  location     = {Ghent, Belgium},
  pages        = {726--729},
  publisher    = {Ghent University. Magnel Laboratory for Concrete Research},
  title        = {Investigation of the fracture cracking behavior of self-healing systems by use of optical and acoustic experimental methods},
  year         = {2013},
}