Cristian Bagni
University of Sheffield
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Publication
Featured researches published by Cristian Bagni.
Fracture and Structural Integrity | 2015
Cristian Bagni; Harm Askes; Luca Susmel
Gradient Elasticity (GE) allows the stress analysis to be performed by taking into account the size of the dominant source of microstructural heterogeneity via a suitable length scale parameter. This is done by simply assuming that the material under investigation obeys a linear-elastic constitutive law, albeit equipped with additional spatial strain gradients. From a practical point of view, the most important implication of this modus operandi is that gradient-enriched linear-elastic stresses at the notch tips are always finite, this holding true also in the presence of sharp stress risers (such as cracks). In the present investigation, the accuracy of two different GE based design strategies was checked against a number of experimental results generated by testing, under cyclic four-point bending, plain concrete samples containing different geometrical features. The high level of accuracy which was obtained by directly using gradient-enriched linear-elastic notch stresses strongly supports the idea that GE is a powerful tool suitable for designing notched concrete components against high-cycle fatigue. This result is very promising also because the required stress analysis can directly be performed by using standard Finite Element (FE) solvers.
Fatigue & Fracture of Engineering Materials & Structures | 2013
Andrea Carpinteri; Andrea Spagnoli; Sabrina Vantadori; Cristian Bagni
International Journal of Fatigue | 2016
O. Jadallah; Cristian Bagni; Harm Askes; Luca Susmel
Fatigue & Fracture of Engineering Materials & Structures | 2016
Cristian Bagni; Harm Askes; Luca Susmel
Computers & Structures | 2015
Cristian Bagni; Harm Askes
Acta Mechanica | 2017
Cristian Bagni; Harm Askes; Elias C. Aifantis
Journal of Sound and Vibration | 2015
Cristian Bagni; Inna M. Gitman; Harm Askes
Procedia Materials Science | 2014
Cristian Bagni; Harm Askes; Luca Susmel
The Annual Postgraduate research Student Conference - 2016 | 2016
Cristian Bagni; Harm Askes; Luca Susmel
Fatigue & Fracture of Engineering Materials & Structures | 2016
Cristian Bagni; Harm Askes; Luca Susmel