Experimental methods for the characterization of fatigue in microstructures

Autor:	G. De Pasquale, A. Somà
Jazyk:	angličtina
Rok vydání:	2013
Předmět:	Reliability MEMS Mechanical fatigue Gold microbeams Alternate loading FEM simulation Interferometric microscopy Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695
Zdroj:	Frattura ed Integrità Strutturale, Vol 7, Iss 23, Pp 114-126 (2013)
Druh dokumentu:	article
ISSN:	1971-8993
Popis:	The mechanical fatigue behavior of gold microbeams is analyzed. Dedicated devices have been designed and built able to produce alternate loading on gold specimens; the electrostatic actuation is used as driving force. Gold beams are tested under both bending and tensile alternate loadings. Results were used to plot S-N curves and fatigue Goodman-Smith diagram in order to estimate the fatigue limit of the material in presence of mean and alternate stress conditions. The surface topography evolution is studied and failure modes are discussed.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/aa9f1144f59548b6b02bd5e4420fd91a Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF