FCGR-package: Fatigue Crack Growth in Reliability
In FCGR: Fatigue Crack Growth in Reliability
Description
Details
Author(s)
References
Description
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.
Details
Package: FCGR
Type: Package
Version: 1.0
Date: 2015-09-29
License: GPL >= 2
The main functions and data frame are cracks.growth, IB.F,
PLOT.cg, Alea.A
Author(s)
Antonio Meneses antoniomenesesfreire@hotmail.com, Salvador
Naya salva@udc.es, Javier Tarrio-Saavedra
jtarrio@udc.es, Ignacio Lopez-Ullibarri ilu@udc.es
Maintainer: Antonio Meneses antoniomenesesfreire@hotmail.com
References
Meeker, W., Escobar, L. (1998) Statistical Methods for Reliability
Data. John Wiley & Sons, Inc. New York.
Pinheiro JC., Bates DM. (2000) Mixed-effects models in S ans S-plus.
Statistics and Computing. Springer-Verlang. New York.
Paris, P.C. and Erdogan, F. (1963) A critical analysis of crack
propagation laws. J. Basic Eng., 85, 528.
FCGR documentation built on May 2, 2019, 9:26 a.m.
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Description Details Author(s) References
Description
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.
Details
| Package: | FCGR |
| Type: | Package |
| Version: | 1.0 |
| Date: | 2015-09-29 |
| License: | GPL >= 2 |
The main functions and data frame are cracks.growth, IB.F,
PLOT.cg, Alea.A
Author(s)
Antonio Meneses antoniomenesesfreire@hotmail.com, Salvador Naya salva@udc.es, Javier Tarrio-Saavedra jtarrio@udc.es, Ignacio Lopez-Ullibarri ilu@udc.es
Maintainer: Antonio Meneses antoniomenesesfreire@hotmail.com
References
Meeker, W., Escobar, L. (1998) Statistical Methods for Reliability
Data. John Wiley & Sons, Inc. New York.
Pinheiro JC., Bates DM. (2000) Mixed-effects models in S ans S-plus.
Statistics and Computing. Springer-Verlang. New York.
Paris, P.C. and Erdogan, F. (1963) A critical analysis of crack
propagation laws. J. Basic Eng., 85, 528.
R Package Documentation
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