Investigation of the effect of defects under the influence of composite loads in metallic silos using radial stem nerve networks

Document Type : Research Article

Authors

1 educational group

2 Andishmand Non-Profit University, Lahijan, Iran

Abstract
Failure and buckling in shell structures, including silos, can be created for various reasons such as distortion, defects created during construction, defects created during operation, or environmental factors, etc. Silos can be subjected to a variety of lateral and axial loads, but since they are in fact affected by the combination of these loads, silos behave under the influence of composite loads. The silos in this research are hot-rolled and located on the ground. The variables of this research are type and scope of defect. Silos are also evaluated in semi-filled and semi-solid state. The model silos were analyzed in ANSYS software. The radial radial neural network RBF was used to predict the buckling capacity of the cylindrical shells. The results of this study indicate that artificial neural networks are a good tool for predicting buckling capacity of silos with defects.

Keywords

[1] Lorenz, Z. (1091). Achsensymmetrische Verzerrungen in dunwandigen Hohlzylinder.
Zeitschrift des Vereines Deutscher Ingenieure 25, 1633–1601.
[5] Timoshenko, S.P. (1019). Einige stabiats Probleme der Elastizitatstheorie. Zeitschrift
für Angewandte Mathematik und Physik 21, 116–126.
[1] Southwell, R.V. (1011). On the general theory of elastic stability. Philosophical
Transactions of the Royal Society, London, Series A 511 116–595.
[1] Flugge, W. (1015). Die Stabilität der Kreiszylinderschalen. Ingenieur 1, 131–293.
[2] Lundquist, E.E. (1011). Strength test of thin-walled duralumin cylinders in
compression. NACA Technical Note, No. 161.
[3] Schmit H., Winterstetter Th. A., Cylindrical Shell under Combined Loading Axial Compression External Pressure and
Torsional Shear, Buckling of Thin Metal Shell; pp531-512 Spon Press London.
[6] Schnell,W.(1020),Zur Stabilitat dunnwandiger Langsgedruckter kreiszy linderschalen bei Zusatzlichem
Innendrouck,proceedings of the IUTAM Symposium on the theory of thin Elastic Shells,Delft,August;136-111.
[1] Yamaki, N. (1011). Elastic Stability of Circular Cylindrical Shells. Elsevier Applied
Science Publishers, North Holland, Amsterdam.
[0] Koiter, W.T. (1012). On the stability of elastic equilibrium. PhD Thesis, Delft
University (in Dutch)
[19] Donnell, L.H. and Wan, C.C. (1029). Effect of imperfections on buckling of thin
cylinders and columns under axial compression. Journal of Applied Mechanics,
Transaction of the ASME 16(1), 61
  • Receive Date 19 May 2019
  • Revise Date 02 June 2019
  • Accept Date 16 June 2019
  • First Publish Date 16 June 2019
  • Publish Date 22 May 2019