Experimental investigation on the fracture behaviour of natural stone exposed to monotonic and cyclic loading
| Autor: | Antonio D’Angelo, Andrea Spagnoli, David Ángel Cendón Franco |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Cladding (metalworking)
Materials science Mechanical Engineering lcsh:Mechanical engineering and machinery lcsh:TA630-695 Thermal fluctuations Modulus 020101 civil engineering Monotonic function Fracture mechanics 02 engineering and technology Bending lcsh:Structural engineering (General) Marble 0201 civil engineering 020303 mechanical engineering & transports Quasi-brittle behaviour 0203 mechanical engineering Mechanics of Materials Ultimate tensile strength Fracture (geology) Fatigue crack propagation lcsh:TJ1-1570 Composite material Thermal cycles |
| Zdroj: | Frattura ed Integrità Strutturale, Vol 13, Iss 47, Pp 394-400 (2019) Frattura ed Integrità Strutturale; Vol 13 No 47 (2019): January 2019; 394-400 Frattura ed Integrità Strutturale; V. 13 N. 47 (2019): January 2019; 394-400 Frattura ed Integrità Strutturale, Vol 13, Iss 47 (2018) |
| ISSN: | 1971-8993 |
| Popis: | The present paper is devoted to an experimental study on the fracture behaviour of natural stones, commonly used as elements for building cladding, under both monotonic and cyclic loading, with particular emphasis to white Carrara marble. The effect of progressive damage produced by in-service thermal fluctuations can be investigated through the application of appropriate cyclic mechanical loads. In the experimental tests conducted, some static mechanical properties of marble are characterized by means of three-point bending tests on edge-cracked prismatic specimens for the determination of Young's modulus, tensile strength and fracture energy. Moreover, cyclic three-point bending tests are conducted to determine the propagation rate of nominally Mode-I fatigue cracks. Finally, the fatigue behaviour of the marble is studied through a cohesive crack model, in which the direct tensile strength of the material is determined by a Brazilian test, and the behaviour is calibrated by means of a suitable FE model. The effect of crack path on the fracture resistance of marble is discussed. |
| Databáze: | OpenAIRE |
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