Damage tolerance of cold drawn ferritic-austenitic stainless steels wires for prestressed concrete


Autoria(s): Valiente Cancho, Andrés; Iordachescu, Mihaela
Data(s)

01/11/2012

Resumo

Damage tolerance of high strength cold-drawn ferritic–austenitic stainless steel wires is assessed by means of tensile fracture tests of cracked wires. The fatigue crack is transversally propagated from the wire surface. The damage tolerance curve of the wires results from the empirical failure load when given as a function of crack depth. As a consequence of cold drawing, the wire microstructure is orientated along its longitudinal axis and anisotropic fracture behaviour is found at macrostructural level at the tensile failure of the cracked specimens. An in situ optical technique known as video image correlation VIC-2D is used to get an insight into this failure mechanism by tensile testing transversally fatigue cracked plane specimens extracted from the cold-drawn wires. Finally, the experimentally obtained damage tolerance curve of the cold-drawn ferritic–austenitic stainless steel wires is compared with that of an elementary plastic collapse model and existing data of two types of high strength eutectoid steel currently used as prestressing steel for concrete.

Formato

application/pdf

Identificador

http://oa.upm.es/16304/

Idioma(s)

eng

Publicador

E.T.S.I. Caminos, Canales y Puertos (UPM)

Relação

http://oa.upm.es/16304/1/INVE_MEM_2012_133157.pdf

http://www.sciencedirect.com/science/article/pii/S095006181200445X

info:eu-repo/semantics/altIdentifier/doi/10.1016/j.conbuildmat.2012.06.053

Direitos

http://creativecommons.org/licenses/by-nc-nd/3.0/es/

info:eu-repo/semantics/openAccess

Fonte

Construction and Building Materials, ISSN 0950-0618, 2012-11, Vol. 36

Palavras-Chave #Materiales
Tipo

info:eu-repo/semantics/article

Artículo

PeerReviewed