Home Business & Economics Time-Dependent Stress-Strength Reliability Models with Phase-Type Cycle Times
Article
Licensed
Unlicensed Requires Authentication

Time-Dependent Stress-Strength Reliability Models with Phase-Type Cycle Times

  • M. Drisya ORCID logo EMAIL logo and Joby K. Jose ORCID logo
Published/Copyright: November 25, 2020
Become an author with De Gruyter Brill

Abstract

The estimation of stress-strength reliability in a time-dependent context deals with either the stress or strength or both dynamic. The repeated occurrence of stress in random intervals of time induces a change in the distribution of strength over time. In this paper, we study the stress-strength reliability of a system whose strength reduces by a constant over each run and the stress is considered as either fixed over time or as increasing by a constant over each run. The number of runs in any interval of time is assumed to be random. The stress-strength reliability of the system is obtained, assuming continuous phase-type distribution for the duration of time taken for completion of each run in any interval of time and Weibull or gamma distribution for initial stress and strength. We obtain matrix-based expressions for the stress-strength reliability and numerical illustrations are also discussed.

MSC 2010: 60K20; 62N05

References

[1] S. Asmussen, O. Nerman and M. Olsson, Fitting phase-type distributions via the EM algorithm, Scand. J. Statist. 23 (1996), no. 4, 419–441. Search in Google Scholar

[2] M. Bladt, L. J. R. Esparza and B. F. Nielsen, Fisher information and statistical inference for phase-type distributions, J. Appl. Probab. 48A (2011), 277–293. 10.1239/jap/1318940471Search in Google Scholar

[3] S. Eryilmaz, On stress-strength reliability with a time dependent strength, J. Qual. Reliab. Eng. 2013 (2013), Article ID 417818. 10.1155/2013/417818Search in Google Scholar

[4] M. N. Gopalan and P. Venkateswarlu, Reliability analysis of time-dependent cascade system with deterministic cycle times, Microelectr. Reliab. 22 (1982), 841–872. 10.1016/S0026-2714(82)80198-4Search in Google Scholar

[5] M. N. Gopalan and P. Venkateswarlu, Reliability analysis of time-dependent cascade system with random cycle times, Microelectr. Reliab. 23 (1983), no. 2, 355–366. 10.1016/0026-2714(83)90346-3Search in Google Scholar

[6] J. K. Jose and M. Drisya, Time-dependent stress-strength reliability models based on phase type distribution, Comput. Statist. 35 (2020), no. 3, 1345–1371. 10.1007/s00180-020-00991-3Search in Google Scholar

[7] M. F. Neuts, Renewal processes of phase type, Naval Res. Logist. Quart. 25 (1978), no. 3, 445–454. 10.1002/nav.3800250307Search in Google Scholar

[8] K. C. Siju and M. Kumar, Reliability analysis of time dependent stress-strength model with random cycle times, Perspect. Sci. 8 (2016), 654–657. 10.1016/j.pisc.2016.06.049Search in Google Scholar

[9] K. C. Siju and M. Kumar, Reliability computation of a dynamic stress-strength model with random cycle times, Int. J. Pure Appl. Math. 117 (2017), 309–316. Search in Google Scholar

[10] R. P. S. Yadav, A reliability model for stress strength problem, Microelectr. Reliab. 12 (1973), no. 2, 119–123. 10.1016/0026-2714(73)90456-3Search in Google Scholar

Received: 2020-09-07
Revised: 2020-11-12
Accepted: 2020-11-12
Published Online: 2020-11-25
Published in Print: 2020-12-01

© 2020 Walter de Gruyter GmbH, Berlin/Boston

Downloaded on 6.2.2026 from https://www.degruyterbrill.com/document/doi/10.1515/eqc-2020-0023/html?lang=en
Scroll to top button