Several experimental tests have shown that the material strength under static or fatigue loading decreases by increasing structural size, and some theoretical arguments have been proposed to interpret such a phenomenon. As far as fatigue crack growth is concerned, limited information on size effect is available in the literature. In the present paper, by exploiting some concepts of fractal geometry, new definitions of fracture energy and stress-intensity factor based on physical dimensions different from the classical ones are discussed. Then, a size-dependent crack growth law (expressing crack growth rate against stress intensity factor range) is proposed and used to interpret relevant experimental data related to concrete.

Effetto di scala nella propagazione a fatica di fessure frattali / Carpinteri, Andrea; Spagnoli, Andrea; Vantadori, Sabrina. - (2002), pp. 123-130. (Intervento presentato al convegno XVI Convegno Nazionale del GRUPPO ITALIANO FRATTURA (IGF16) tenutosi a Catania).

Effetto di scala nella propagazione a fatica di fessure frattali

CARPINTERI, Andrea;SPAGNOLI, Andrea;VANTADORI, Sabrina
2002-01-01

Abstract

Several experimental tests have shown that the material strength under static or fatigue loading decreases by increasing structural size, and some theoretical arguments have been proposed to interpret such a phenomenon. As far as fatigue crack growth is concerned, limited information on size effect is available in the literature. In the present paper, by exploiting some concepts of fractal geometry, new definitions of fracture energy and stress-intensity factor based on physical dimensions different from the classical ones are discussed. Then, a size-dependent crack growth law (expressing crack growth rate against stress intensity factor range) is proposed and used to interpret relevant experimental data related to concrete.
2002
9788895940137
Effetto di scala nella propagazione a fatica di fessure frattali / Carpinteri, Andrea; Spagnoli, Andrea; Vantadori, Sabrina. - (2002), pp. 123-130. (Intervento presentato al convegno XVI Convegno Nazionale del GRUPPO ITALIANO FRATTURA (IGF16) tenutosi a Catania).
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/1461935
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact