FCGR: Fatigue Crack Growth in Reliability

Fatigue Crack Growth in Reliability estimates the distribution of material lifetime due to mechanical fatigue efforts. The FCGR package provides simultaneous crack growth curves fitting to different specimens in materials under mechanical stress efforts. Linear mixed-effects models (LME) with smoothing B-Splines and the linearized Paris-Erdogan law are applied. Once defined the fail for a determined crack length, the distribution function of failure times to fatigue is obtained. The density function is estimated by applying nonparametric binned kernel density estimate (bkde) and the kernel estimator of the distribution function (kde). The results of Pinheiro and Bates method based on nonlinear mixed-effects regression (nlme) can be also retrieved. The package contains the crack.growth, PLOT.cg, IB.F, and Alea.A (database) functions.

Author
Antonio Meneses <antoniomenesesfreire@hotmail.com>, Salvador Naya <salva@udc.es>, Javier Tarrio-Saavedra <jtarrio@udc.es>, Ignacio Lopez-Ullibarri <ilu@udc.es>
Date of publication
2015-10-13 09:10:49
Maintainer
Antonio Meneses <antoniomenesesfreire@hotmail.com>
License
GPL (>= 2)
Version
1.0-0

View on CRAN

Man pages

Alea.A
Crack growth of aluminum A-alloy due mechanical fatigue...
cracks.growth
Fatigue crack growth in reliability analysis
FCGR-package
Fatigue Crack Growth in Reliability

Files in this package

FCGR
FCGR/NAMESPACE
FCGR/data
FCGR/data/Alea.A.txt
FCGR/R
FCGR/R/PLOT.cg.R
FCGR/R/IB.F.R
FCGR/R/cracks.growth.R
FCGR/MD5
FCGR/DESCRIPTION
FCGR/man
FCGR/man/PLOT.cg.rd
FCGR/man/cracks.growth.Rd
FCGR/man/FCGR-package.Rd
FCGR/man/Alea.A.Rd
FCGR/man/IB.F.rd