An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards
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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Marcílio Alves
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| Series: | Latin American Journal of Solids and Structures |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017001302402&lng=en&tlng=en |
| _version_ | 1818291432428929024 |
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| author | Bruno de Castro Braz Flávio Luiz de Silva Bussamra |
| author_facet | Bruno de Castro Braz Flávio Luiz de Silva Bussamra |
| author_sort | Bruno de Castro Braz |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-13T02:43:58Z |
| format | Article |
| id | doaj.art-3510ca2c364d4e03addf6d7b9ea7f768 |
| institution | Directory Open Access Journal |
| issn | 1679-7825 |
| language | English |
| last_indexed | 2024-12-13T02:43:58Z |
| publisher | Marcílio Alves |
| record_format | Article |
| series | Latin American Journal of Solids and Structures |
| spelling | doaj.art-3510ca2c364d4e03addf6d7b9ea7f7682022-12-22T00:02:13ZengMarcílio AlvesLatin American Journal of Solids and Structures1679-782514132402242210.1590/1679-78253163S1679-78252017001302402An Enhanced Random Vibration and Fatigue Model for Printed Circuit BoardsBruno de Castro BrazFlávio Luiz de Silva BussamraAbstract 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017001302402&lng=en&tlng=enRandom vibrationfatiguePCB |
| spellingShingle | Bruno de Castro Braz Flávio Luiz de Silva Bussamra An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards Latin American Journal of Solids and Structures Random vibration fatigue PCB |
| title | 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_short | An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards |
| title_sort | enhanced random vibration and fatigue model for printed circuit boards |
| topic | Random vibration fatigue PCB |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017001302402&lng=en&tlng=en |
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