TY - JOUR
T1 - The fracture mechanical behavior of the interface between animal fibers, mortar, and earth matrices. A theoretical and experimental approach
AU - Antico, F. C.
AU - Concha-Riedel, J.
AU - Valdivia, I.
AU - García Herrera, C.
AU - Utrera, A.
N1 - Funding Information:
The authors would like to also thank Nicolás Rodriguez, Nicolás Pérez, Arline Ferrante, Mauro Ortiz, and Wladimir Vergara for their contribution to the execution of the experimental testing plan. Paula Llanos and Richard Aguirre for their guidance in performing microscopies and image analysis of the fibers. FCA wishes to thank Prof. Jean-Marc Tulliani and Prof. Jacques Dumais for their collaboration with scanning electron microscopies, the measurements taken to pig hairs with the optical microscope, and the use of the high-speed camera to address the debonding process. This research was partially supported by ANID— (National Agency for Research and Development, Chile) under its program FONDECYT, grant number 11200283 . This support is gratefully acknowledged by the authors.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/4/1
Y1 - 2023/4/1
N2 - Theoretical-experimental research is presented to address the mechanics and failure mode of the interface between two matrices with brittle behavior, earth and mortar, and pig hair, an organic fiber that is a massive waste from the food industry worldwide. A comprehensive statistical analysis of the pull-out force is presented, accounting for the effect of fiber embedded length, diameter variability, and age of the matrices. Experimental results are contrasted with fracture-mechanics theories to describe its behavior in this matter. Results show that neither fiber length, variability of diameter, nor the age of the matrix influences the pull-out force of both matrices evaluated in this work. Our results show the brittle nature of these interfaces, which was also observed using a high-speed camera. The tensile load of the fibers was compared to the pull-out force, showing that these fibers always work within their elastic regime. This work contributes directly to the sustainable goals 9, 11, and 15 enacted by the United Nations in 2015, by contributing to the understanding of the fracture mechanics of a waste product used as reinforcement of construction matrices.
AB - Theoretical-experimental research is presented to address the mechanics and failure mode of the interface between two matrices with brittle behavior, earth and mortar, and pig hair, an organic fiber that is a massive waste from the food industry worldwide. A comprehensive statistical analysis of the pull-out force is presented, accounting for the effect of fiber embedded length, diameter variability, and age of the matrices. Experimental results are contrasted with fracture-mechanics theories to describe its behavior in this matter. Results show that neither fiber length, variability of diameter, nor the age of the matrix influences the pull-out force of both matrices evaluated in this work. Our results show the brittle nature of these interfaces, which was also observed using a high-speed camera. The tensile load of the fibers was compared to the pull-out force, showing that these fibers always work within their elastic regime. This work contributes directly to the sustainable goals 9, 11, and 15 enacted by the United Nations in 2015, by contributing to the understanding of the fracture mechanics of a waste product used as reinforcement of construction matrices.
KW - Earth materials
KW - Interfacial fracture toughness
KW - Mortar
KW - Natural fibers
KW - Pull-out behavior
UR - http://www.scopus.com/inward/record.url?scp=85150367505&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2023.110568
DO - 10.1016/j.compositesb.2023.110568
M3 - Article
AN - SCOPUS:85150367505
SN - 1359-8368
VL - 254
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
M1 - 110568
ER -