An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards

Detalhes bibliográficos
Autor(a) principal: Braz,Bruno de Castro
Data de Publicação: 2017
Outros Autores: Bussamra,Flávio Luiz de Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Latin American journal of solids and structures (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017001302402
Resumo: Abstract Aerospace vehicles are mostly exposed to random vibration loads during its operational lifetime. These harsh conditions excites vibration responses in the vehicles printed circuit boards, what can cause failure on mission functionality due to fatigue damage of electronic components. A novel analytical model to evaluate the useful life of embedded electronic components (capacitors, chips, oscillators etc.) mounted on Printed Circuit Boards (PCB) is presented. The fatigue damage predictions are calculated by the relative displacement between the PCB and the component, the lead stiffness, as well the natural vibration modes of the PCB and the component itself. Statistical methods are used for fatigue cycle counting. The model is applied to experimental fatigue tests of PCBs available on literature. The analytical results are of the same magnitude order of the experimental findings.
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spelling An Enhanced Random Vibration and Fatigue Model for Printed Circuit BoardsRandom vibrationfatiguePCBAbstract Aerospace vehicles are mostly exposed to random vibration loads during its operational lifetime. These harsh conditions excites vibration responses in the vehicles printed circuit boards, what can cause failure on mission functionality due to fatigue damage of electronic components. A novel analytical model to evaluate the useful life of embedded electronic components (capacitors, chips, oscillators etc.) mounted on Printed Circuit Boards (PCB) is presented. The fatigue damage predictions are calculated by the relative displacement between the PCB and the component, the lead stiffness, as well the natural vibration modes of the PCB and the component itself. Statistical methods are used for fatigue cycle counting. The model is applied to experimental fatigue tests of PCBs available on literature. The analytical results are of the same magnitude order of the experimental findings.Associação Brasileira de Ciências Mecânicas2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017001302402Latin American Journal of Solids and Structures v.14 n.13 2017reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78253163info:eu-repo/semantics/openAccessBraz,Bruno de CastroBussamra,Flávio Luiz de Silvaeng2018-02-23T00:00:00Zoai:scielo:S1679-78252017001302402Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2018-02-23T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards
title An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards
spellingShingle An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards
Braz,Bruno de Castro
Random vibration
fatigue
PCB
title_short An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards
title_full An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards
title_fullStr An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards
title_full_unstemmed An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards
title_sort An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards
author Braz,Bruno de Castro
author_facet Braz,Bruno de Castro
Bussamra,Flávio Luiz de Silva
author_role author
author2 Bussamra,Flávio Luiz de Silva
author2_role author
dc.contributor.author.fl_str_mv Braz,Bruno de Castro
Bussamra,Flávio Luiz de Silva
dc.subject.por.fl_str_mv Random vibration
fatigue
PCB
topic Random vibration
fatigue
PCB
description Abstract Aerospace vehicles are mostly exposed to random vibration loads during its operational lifetime. These harsh conditions excites vibration responses in the vehicles printed circuit boards, what can cause failure on mission functionality due to fatigue damage of electronic components. A novel analytical model to evaluate the useful life of embedded electronic components (capacitors, chips, oscillators etc.) mounted on Printed Circuit Boards (PCB) is presented. The fatigue damage predictions are calculated by the relative displacement between the PCB and the component, the lead stiffness, as well the natural vibration modes of the PCB and the component itself. Statistical methods are used for fatigue cycle counting. The model is applied to experimental fatigue tests of PCBs available on literature. The analytical results are of the same magnitude order of the experimental findings.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017001302402
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017001302402
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1679-78253163
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Ciências Mecânicas
publisher.none.fl_str_mv Associação Brasileira de Ciências Mecânicas
dc.source.none.fl_str_mv Latin American Journal of Solids and Structures v.14 n.13 2017
reponame:Latin American journal of solids and structures (Online)
instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron:ABCM
instname_str Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron_str ABCM
institution ABCM
reponame_str Latin American journal of solids and structures (Online)
collection Latin American journal of solids and structures (Online)
repository.name.fl_str_mv Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
repository.mail.fl_str_mv abcm@abcm.org.br||maralves@usp.br
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