A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Crack arrest in mortar matrix reinforced with unidirectionally aligned fibers
This paper presents an investigation on the effects of reinforcement size, reinforcement spacing and specimen size on the fracture parametters of notched mortar specimens reinforced with long aligned steel fibers. A total of 33 specimens of variable fiber size, fiber spacing and specimen size were tested under quasistatic monotonic and cyclic loading conditions. For a constant volume fraction of steel reinforcement, the experimental results indicate an increase in the fracture energy as the size of the reinforcing fibers and the corresponding spacing between the fibers is reduced. Finite element analysis indicates that the closing pressures imposed by the bridging of the fibers in the wake of the crack-tip increase as the the spacing between the fibers is decreased, particularly as the spacing approaches approximately 6.25 mm. Within the testing range, the fracture energy (Gf), energy release rate (GIc) and stress intensity factor (KIc) appear to be independent of the specimen thickness.
Crack arrest in mortar matrix reinforced with unidirectionally aligned fibers
This paper presents an investigation on the effects of reinforcement size, reinforcement spacing and specimen size on the fracture parametters of notched mortar specimens reinforced with long aligned steel fibers. A total of 33 specimens of variable fiber size, fiber spacing and specimen size were tested under quasistatic monotonic and cyclic loading conditions. For a constant volume fraction of steel reinforcement, the experimental results indicate an increase in the fracture energy as the size of the reinforcing fibers and the corresponding spacing between the fibers is reduced. Finite element analysis indicates that the closing pressures imposed by the bridging of the fibers in the wake of the crack-tip increase as the the spacing between the fibers is decreased, particularly as the spacing approaches approximately 6.25 mm. Within the testing range, the fracture energy (Gf), energy release rate (GIc) and stress intensity factor (KIc) appear to be independent of the specimen thickness.
Crack arrest in mortar matrix reinforced with unidirectionally aligned fibers
Rißausbreitungsbehinderung in Mörteln mit eindimensional ausgerichteten Fasern in der Matrix
Issa, M.A. (author) / Shafiq, A.B. (author) / Hammad, A.M. (author)
Cement and Concrete Research ; 26 ; 1245-1256
1996
12 Seiten, 5 Bilder, 1 Tabelle, 17 Quellen
Article (Journal)
English
Mörtel , Riss , Rissausbreitung , Risswiderstand , Bruchmechanik , Spannungsintensitätsfaktor , armierter Beton , faserverstärktes Erzeugnis , Metallfaser , Bruchenergie , mechanische Eigenschaft , mechanische Beanspruchung , statische Prüfung , dynamische Prüfung , Finite-Elemente-Methode , Ausrichtung
Crack Arrest in Mortar Matrix Reinforced with Unidirectionally Aligned Fibers
| Online Contents | 1996
Crack Arrest in Mortar Matrix Reinforced with Unidirectionally Aligned Fibers
| British Library Online Contents | 1996
Polypropylene Composites Unidirectionally Reinforced with Polyester Fibers
| British Library Online Contents | 2004
Polyethylene Composites Unidirectionally Reinforced with Nylon Fibers
| British Library Online Contents | 2003
Crack Growth in Uniaxially Aligned Fiber Reinforced Mortar
| British Library Conference Proceedings | 1996