Buradasınız

ÇARPMA YÜKÜ ALTINDAKİ RİJİT PLASTİK KİRİŞLERİN ANALİTİK OLARAK İNCELENMESİ

AN ANALYTICAL INVESTIGATION OF RIGID PLASTIC BEAMS UNDER IMPACT LOADING

Journal Name:

Publication Year:

Keywords (Original Language):

Abstract (2. Language): 
Beams might be subjected to impact loading which is a particular type of dynamic loading during their service lives. In this study the behaviour of beams under low speed impact loading has been investigated analytically. Simply supported and fixed ended beams have been analyzed with the assumption of rigid plastic behaviour. The collapse mechanism has been assumed to emerge by the instant formation of plastic hinges, hence, a limit analysis has been performed under dynamic loading considering the conservation principles of energy and momentum. The behaviour of rigid plastic beams under impact loading has been compared to the behaviour of elastic beams under similar loading conditions.
Abstract (Original Language): 
Kirişler, kullanım ömürleri boyunca dinamik bir yükleme türü olan çarpma yüklerine maruz kalabilirler. Bu çalışmada kirişlerin düşük hızlı çarpma yükü etkisi altındaki davranışları analitik olarak incelenmiştir. Basit ve ankastre mesnetli kirişler, rijit plastik davranış kabulü yapılarak dinamik yükler altında incelenmiştir. Göçme mekanizmasının ani olarak plastik mafsal oluşumuyla gerçekleştiği kabul edilmiş, enerji ve momentumun korunma ilkeleri dikkate alınarak dinamik yük altında kirişlerin limit analizi yapılmıştır. Darbe yükü altındaki rijit plastik kiriş davranışı, benzer yükleme koşulları altındaki elastik kiriş davranışıyla karşılaştırılmıştır.

REFERENCES

References: 

1. Yu, T.X., Yang, J.L. ve Reid, S.R., “Dynamic
behavior of double cantilever beams subjected to
impact”, International Journal of Pressure
Vessels and Piping, Cilt 78, No 1, 49-57, 2001.
2. Yu, T.X., Yang, J.L. ve Reid, S.R., “Deformable
body impact: dynamic plastic behaviour of a
moving free-free beam striking the tip of a
cantilever beam ”, International Journal of
Solids and Structures, Cilt 38, No 2, 261-287,
2001.
3. Yang, J.L., Liu, X.H. ve Reid, S.R., “Dynamic
plastic behavior of a free–free beam striking the
mid-span of a clamped beam with shear and
membrane effects considered”, International
Journal of Mechanical Sciences, Cilt 45, No 5,
915–940, 2003.
4. Yang, J.L., Yu, T.X. ve Reid, S.R., “Dynamic
behaviour of a rigid, perfectly plastic free-free
beam subjected to step-loading at any crosssection
along its span”, International Journal of
Impact Engineering, Cilt 21, No 3, 165-175
1998.
5. Wen, H.M., Reddy, T. Y. ve Reid, S.R.,
“Deformation and failure of clamped beams
under low speed impact loading”, International
Journal of Impact Engineering, Cilt 16, No 3,
435-454, 1995.
6. Liu, J.H. ve Jones, N., “Dynamic response of a
rigid plastic clamped beam struck by a mass at
any point on the span”, International Journal of
Solids and Structures, Cilt 24, No 3, 251-270,
1988.
7. Kantar, E., Arslan. A. ve Anıl, Ö., “Beton
dayanımındaki değişimin çarpma davranışına
etkisi”, Journal of The Faculty of Engineering
and Architecture of Gazi University, Cilt 26,
No 1, 115-123, 2011.
8. Kishi, N. ve Bhatti, A.Q., “An equivalent fracture
energy concept for nonlinear dynamic response
analysis of prototype RC girders subjected to
falling-weight impact loading”, International
Journal of Impact Engineering, Cilt 37, No 1,
103–113, 2010.
9. Saatci, S. ve Vecchio, F.J., “Effects of shear
mechanisms on impact behavior of reinforced
concrete beams”, ACI Structural Journal, Cilt
106, No 1, 78-86, 2009.
10. Saatci, S. ve Vecchio, F.J., “Nonlinear finite
element modeling of reinforced concrete
structures under impact loads”, ACI Structural
Journal, Cilt 106, No 5, 717-725, 2009.
11. Harsoor, R. ve Ramachandra, L.S., “Influence of
notch on the elastic–plastic response of clamped
beams subjected to low velocity impact”,
International Journal of Impact Engineering,
Cilt 36, No 8, 1058–1069, 2009.
12. Bambacha, M.R., Jamaa, H., Zhaoa, X.L. ve
Grzebieta, R.H., “Hollow and concrete filled steel
hollow sections under transverse impact loads”,
Engineering Structures Cilt 30, No 10, 2859–
2870, 2008.
13. Gültop, T., Alyavuz, B. ve Yılmaz, M.C., “Plastic
Collapse of Beams under Impact Loading”, 6.
Mühendislik ve Teknoloji Sempozyumu,
Çankaya Üniversitesi, Ankara, 63-66, 25-26
Nisan 2013.
14. Young, W.C., “Dynamic and Temperature
Stresses”, Roark’s Formulas for Stress and
Strain, Mc Graw Hill, Sixth Edition, New York,
A.B.D., 710-720, 1989.
15. Wasti, S.T., “Yıkılışın Bazı Misalleri”, Limit
Analizi, Orta Doğu Teknik Üniversitesi
Mühendislik Fakültesi Yayınları, Ankara,
Türkiye, 13-24, 1968.
16. Neal, B.G., “Basic Theorems and Simple
Examples”, The Plastic Methods of Structural
Analysis, Chapman and Hall, Londra, İngiltere,
18-46, 1981.
17. Martin, J.B., “Limit Analysis of Beams and
Frames”, Plasticity: Fundamentals and
General Results, MIT Press, Londra, İngiltere,
408-420, 1975.

Thank you for copying data from http://www.arastirmax.com