Lifetime Reliability Estimate and Extreme Permanent Deformations of Randomly Excited Elasto-Plastic Structures

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

A method is presented for life-time reliability' estimates of randomly excited yielding systems, assuming the structure to be safe, when the plastic deformations are confined below certain limits. The accumulated plastic deformations during any single significant loading history are considered to be the outcome of identically distributed, independent stochastic variables,for which a model is suggested. Further assuming the interarrival times of the elementary loading histories to be specified by a Poisson process, and the duration of these to be small compared to the designed life-time, the accumulated plastic deformation during several loadings can be modelled as a filtered Poisson process. Using the Markov property of this quantity the considered first-passage problem as well as the related extreme distribution problems are then solved numerically, and the results are compared to simulation studies.
OriginalsprogEngelsk
TidsskriftReliability Engineering & System Safety
Vol/bind4
Udgave nummer2
Sider (fra-til)85-103
Antal sider19
ISSN0951-8320
DOI
StatusUdgivet - 1983

Fingerprint

Plastic deformation
Plastics

Emneord

  • Lifetime Reliability
  • Elasto-Plastic Structures
  • Permanent Deformations

Citer dette

@article{8f23daa1a6284ed7b9bdbf45dcc488b6,
title = "Lifetime Reliability Estimate and Extreme Permanent Deformations of Randomly Excited Elasto-Plastic Structures",
abstract = "A method is presented for life-time reliability' estimates of randomly excited yielding systems, assuming the structure to be safe, when the plastic deformations are confined below certain limits. The accumulated plastic deformations during any single significant loading history are considered to be the outcome of identically distributed, independent stochastic variables,for which a model is suggested. Further assuming the interarrival times of the elementary loading histories to be specified by a Poisson process, and the duration of these to be small compared to the designed life-time, the accumulated plastic deformation during several loadings can be modelled as a filtered Poisson process. Using the Markov property of this quantity the considered first-passage problem as well as the related extreme distribution problems are then solved numerically, and the results are compared to simulation studies.",
keywords = "Lifetime Reliability, Elasto-Plastic Structures, Permanent Deformations, Lifetime Reliability, Elasto-Plastic Structures, Permanent Deformations",
author = "Nielsen, {S{\o}ren R.K.} and S{\o}rensen, {John Dalsgaard} and Palle Thoft-Christensen",
year = "1983",
doi = "10.1016/0143-8174(83)90002-1",
language = "English",
volume = "4",
pages = "85--103",
journal = "Reliability Engineering & System Safety",
issn = "0951-8320",
publisher = "Pergamon Press",
number = "2",

}

Lifetime Reliability Estimate and Extreme Permanent Deformations of Randomly Excited Elasto-Plastic Structures. / Nielsen, Søren R.K.; Sørensen, John Dalsgaard; Thoft-Christensen, Palle.

I: Reliability Engineering & System Safety, Bind 4, Nr. 2, 1983, s. 85-103.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Lifetime Reliability Estimate and Extreme Permanent Deformations of Randomly Excited Elasto-Plastic Structures

AU - Nielsen, Søren R.K.

AU - Sørensen, John Dalsgaard

AU - Thoft-Christensen, Palle

PY - 1983

Y1 - 1983

N2 - A method is presented for life-time reliability' estimates of randomly excited yielding systems, assuming the structure to be safe, when the plastic deformations are confined below certain limits. The accumulated plastic deformations during any single significant loading history are considered to be the outcome of identically distributed, independent stochastic variables,for which a model is suggested. Further assuming the interarrival times of the elementary loading histories to be specified by a Poisson process, and the duration of these to be small compared to the designed life-time, the accumulated plastic deformation during several loadings can be modelled as a filtered Poisson process. Using the Markov property of this quantity the considered first-passage problem as well as the related extreme distribution problems are then solved numerically, and the results are compared to simulation studies.

AB - A method is presented for life-time reliability' estimates of randomly excited yielding systems, assuming the structure to be safe, when the plastic deformations are confined below certain limits. The accumulated plastic deformations during any single significant loading history are considered to be the outcome of identically distributed, independent stochastic variables,for which a model is suggested. Further assuming the interarrival times of the elementary loading histories to be specified by a Poisson process, and the duration of these to be small compared to the designed life-time, the accumulated plastic deformation during several loadings can be modelled as a filtered Poisson process. Using the Markov property of this quantity the considered first-passage problem as well as the related extreme distribution problems are then solved numerically, and the results are compared to simulation studies.

KW - Lifetime Reliability

KW - Elasto-Plastic Structures

KW - Permanent Deformations

KW - Lifetime Reliability

KW - Elasto-Plastic Structures

KW - Permanent Deformations

U2 - 10.1016/0143-8174(83)90002-1

DO - 10.1016/0143-8174(83)90002-1

M3 - Journal article

VL - 4

SP - 85

EP - 103

JO - Reliability Engineering & System Safety

JF - Reliability Engineering & System Safety

SN - 0951-8320

IS - 2

ER -