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 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.
| Version: |
1.2-0 |
| Depends: |
R (≥ 4.5.0), kerdiest, KernSmooth, nlme, parallel |
| Imports: |
MASS, mgcv, pspline, sfsmisc |
| Published: |
2026-09-28 |
| DOI: |
10.32614/CRAN.package.FCGR |
| Author: |
Antonio Meneses [aut, cre],
Salvador Naya [ctb],
Javier Tarrio-Saavedra [ctb],
Ignacio Lopez-Ullibarri [ctb] |
| Maintainer: |
Antonio Meneses <antoniomenesesfreire at hotmail.com> |
| License: |
GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| NeedsCompilation: |
no |
| CRAN checks: |
FCGR results |
Documentation:
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