Vibration based damage detection in composite beams under temperature variations using Poincare maps
Artykuł w czasopiśmie
| Status: | |
| Autorzy: | Manoach Emil, Samborski Sylwester, Mitura Andrzej, Warmiński Jerzy |
| Rok wydania: | 2012 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 1 |
| Wolumen/Tom: | 62 |
| Strony: | 120 - 132 |
| Web of Science® Times Cited: | 55 |
| Scopus® Cytowania: | 63 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| In thisworknumericalandexperimentalstudyofthevibrationoflaminatedbeamswithdamage, subjectedtodynamicloadingandtemperaturevariationsispresented. The goalofthestudyistochecktheapplicabilityofthedamagedetectiontechniquebasedonan analysisofthePoincare´ maps ofthebeamresponse.Thegeometricallynonlinearversionofthe Timoshenkobeamtheoryisusedtomodelthebeambehavior.Thedamageisrepresentedasa reductionoftheeffectiveelasticmodulusofthebeammaterialinasmallareaofthestructure. The beamsaresubjectedtoaharmonicloading,leadingtolargeamplitudevibrationsandto temperaturechanges.Themainresultsarefocusedonestablishingtheinfluenceofthedamageon the vibrationresponseofheatedorunheatedstructuresandthechangeinthetime-historydiagrams and thePoincare´ maps,causedbyadamageandelevatedtemperature.Thedamagedetectioncriterion formulatedearlierfornonheatedplates,basedonanalysingofthePoincare´ maps ofthedamagedand healthy plate,ismodifiedandtestedforthecaseofbeamsadditionallysubjectedtoelevated temperatures.Theimportanceoftakingintoaccounttheactualtemperatureintheprocessofdamage detectionisshown.Performedexperimentaltests(byanopticalmethod)confirmtheapplicabilityand sensitivityoftheproposedmethod. |
