Experimental dynamic analysis on naturally curved honeycomb sandwich beams with different damage patterns

In this study, dynamic analysis of naturally curved honeycomb sandwich beam including two surface cracks and an impact region at the facing skin is presented. Laminates of facing skin and backing skin are known as carbon fiber-plain weave composite laminates with 1.6 mm in thickness. In the first part, in order to determine mechanical properties of both the skin with no-crack/crack(s) and the honeycomb core of the composite beam, static tensile tests are conducted with respect to straingage measurement technique. In the second part, drop weight impact tests and vibration tests are performed to present the free vibration characteristics of the clamped-clamped honeycomb sandwich beam including cracks and an impact-damaged region. Corresponding to damage patterns of the sandwich beam, experimental dynamic analyses consist of six steps: (1) Vibration analysis with no-crack and no-impact region, (2) Vibration analysis with no-crack and an impact region, (3) Vibration analysis with a surface crack and no-impact region, (4) Vibration analysis with a surface crack and an impact region, (5) Vibration analysis with two surface cracks and no-impact region, (6) Vibration analysis with two surface cracks and an impact region. For these purposes, an impact hammer with a force transducer is used to excite the undamaged or damaged naturally curved honeycomb sandwich beam through the selected points. After the excitation, the responses are obtained by an accelerometer. Resonant frequencies for the modal responses of the naturally curved honeycomb sandwich beam with different damage patterns are discussed. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Dergi Adı Materialwissenschaft und Werkstofftechnik
Dergi Cilt Bilgisi 45
Dergi Sayısı 4
Sayfalar 306 - 313
Yayın Yılı 2014
Eser Adı
[dc.title]
Experimental dynamic analysis on naturally curved honeycomb sandwich beams with different damage patterns
Yazar
[dc.contributor.author]
Erdogan H.
Yazar
[dc.contributor.author]
Yetmez M.
Yayın Yılı
[dc.date.issued]
2014
Yayıncı
[dc.publisher]
Wiley-VCH Verlag
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
In this study, dynamic analysis of naturally curved honeycomb sandwich beam including two surface cracks and an impact region at the facing skin is presented. Laminates of facing skin and backing skin are known as carbon fiber-plain weave composite laminates with 1.6 mm in thickness. In the first part, in order to determine mechanical properties of both the skin with no-crack/crack(s) and the honeycomb core of the composite beam, static tensile tests are conducted with respect to straingage measurement technique. In the second part, drop weight impact tests and vibration tests are performed to present the free vibration characteristics of the clamped-clamped honeycomb sandwich beam including cracks and an impact-damaged region. Corresponding to damage patterns of the sandwich beam, experimental dynamic analyses consist of six steps: (1) Vibration analysis with no-crack and no-impact region, (2) Vibration analysis with no-crack and an impact region, (3) Vibration analysis with a surface crack and no-impact region, (4) Vibration analysis with a surface crack and an impact region, (5) Vibration analysis with two surface cracks and no-impact region, (6) Vibration analysis with two surface cracks and an impact region. For these purposes, an impact hammer with a force transducer is used to excite the undamaged or damaged naturally curved honeycomb sandwich beam through the selected points. After the excitation, the responses are obtained by an accelerometer. Resonant frequencies for the modal responses of the naturally curved honeycomb sandwich beam with different damage patterns are discussed. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
crack
Konu Başlıkları
[dc.subject]
Curved sandwich structure
Konu Başlıkları
[dc.subject]
impact
Konu Başlıkları
[dc.subject]
vibration
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
0933-5137
İlk Sayfa Sayısı
[dc.identifier.startpage]
306
Son Sayfa Sayısı
[dc.identifier.endpage]
313
Dergi Adı
[dc.relation.journal]
Materialwissenschaft und Werkstofftechnik
Dergi Sayısı
[dc.identifier.issue]
4
Dergi Cilt Bilgisi
[dc.identifier.volume]
45
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1002/mawe.201400230
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/5824
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
92
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
16 Temmuz 2024 12:27
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Tıklayınız
region analysis impact Vibration honeycomb sandwich surface cracks no-impact curved naturally composite vibration responses damage patterns no-crack including dynamic facing discussed transducer hammer purposes undamaged Weinheim excite different frequencies WILEY-VCH Resonant accelerometer Verlag obtained excitation
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