Four-Parameter Weibull Distribution with Lower and Upper Limits Applicable in Reliability Studies and Materials Testing

A simply curved Weibull plot means that the studied data set has a three-parameter Weibull distribution with a non-zero location parameter representing the lower or the upper limit of the data set. This paper introduces a four-parameter Weibull distribution with both of these limits that can be appl...

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Main Author: Jan Kohout
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/11/3/544
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author Jan Kohout
author_facet Jan Kohout
author_sort Jan Kohout
collection DOAJ
description A simply curved Weibull plot means that the studied data set has a three-parameter Weibull distribution with a non-zero location parameter representing the lower or the upper limit of the data set. This paper introduces a four-parameter Weibull distribution with both of these limits that can be applied in both reliability and materials engineering. A very reliable indicator of this distribution is the double-curved Weibull plot. The great advantage of this distribution is the fact that the corresponding hazard rate curve can be bathtub-shaped with a great ability to fit the measured data.
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spelling doaj.art-c963c8b50c234999a992044fb05a31f72023-11-16T17:21:07ZengMDPI AGMathematics2227-73902023-01-0111354410.3390/math11030544Four-Parameter Weibull Distribution with Lower and Upper Limits Applicable in Reliability Studies and Materials TestingJan Kohout0Department of Mathematics and Physics, Military Technology Faculty, University of Defence, Kounicova 65, CZ-662 10 Brno, Czech RepublicA simply curved Weibull plot means that the studied data set has a three-parameter Weibull distribution with a non-zero location parameter representing the lower or the upper limit of the data set. This paper introduces a four-parameter Weibull distribution with both of these limits that can be applied in both reliability and materials engineering. A very reliable indicator of this distribution is the double-curved Weibull plot. The great advantage of this distribution is the fact that the corresponding hazard rate curve can be bathtub-shaped with a great ability to fit the measured data.https://www.mdpi.com/2227-7390/11/3/544Weibull distributioncurved Weibull plotreliabilitylifetimetime to breakdownbathtub-shaped hazard rate
spellingShingle Jan Kohout
Four-Parameter Weibull Distribution with Lower and Upper Limits Applicable in Reliability Studies and Materials Testing
Mathematics
Weibull distribution
curved Weibull plot
reliability
lifetime
time to breakdown
bathtub-shaped hazard rate
title Four-Parameter Weibull Distribution with Lower and Upper Limits Applicable in Reliability Studies and Materials Testing
title_full Four-Parameter Weibull Distribution with Lower and Upper Limits Applicable in Reliability Studies and Materials Testing
title_fullStr Four-Parameter Weibull Distribution with Lower and Upper Limits Applicable in Reliability Studies and Materials Testing
title_full_unstemmed Four-Parameter Weibull Distribution with Lower and Upper Limits Applicable in Reliability Studies and Materials Testing
title_short Four-Parameter Weibull Distribution with Lower and Upper Limits Applicable in Reliability Studies and Materials Testing
title_sort four parameter weibull distribution with lower and upper limits applicable in reliability studies and materials testing
topic Weibull distribution
curved Weibull plot
reliability
lifetime
time to breakdown
bathtub-shaped hazard rate
url https://www.mdpi.com/2227-7390/11/3/544
work_keys_str_mv AT jankohout fourparameterweibulldistributionwithlowerandupperlimitsapplicableinreliabilitystudiesandmaterialstesting