Experimental and Numerical Analysis of the Critical Buckling Load of Cracked Sheets

Subject Areas : Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

دانیال شیخی ¹ , محمدمهدی نجفی زاده ² , علیرضا نظام آبادی ³

1 - دانشجوی کارشناسی ارشد، دانشکده مکانیک، دانشگاه آزاد اسلامی واحد اراک، اراک، ایران.
2 - دانشیار، دانشکده مکانیک، دانشگاه آزاد اسلامی واحد اراک، اراک، ایران.
3 - استادیار، دانشکده مکانیک، دانشگاه آزاد اسلامی واحد اراک، اراک، ایران.

Received: 2016-02-06 Accepted : 2016-02-06 Published : 2013-04-21

Keywords: Buckling, critical load, cracking sheets, Crack angle,

Abstract :

Collapse by buckling a quite common phenomenon in sheets under pressure. When these structures caused by defects such as corrosion and cracks the time of the occurrence of this phenomenon is sensitive and critical load to be significantly reduced. Therefore, in this article sheet of aluminum Al 1200 by cracks in a part of the sheet will be considered. Left angle on the critical buckling load effect both experimentally and theoretically calculated. STM-250 experiments using theoretical analysis using Abaqus software is done and the results are compared with theoretical and experimental.

References:

[1] Shanmugam N.E., Thevendran V., Tan Y.H., Design formula for axially compressed perforated plates, Thin-Walled Structures, vol. 34, 1999, pp. 1-20.

[2] Kumar M., Sonmez A.M., Elastic buckling of rectangular plates under linearly varying in-plane normal load with a circular cutout, Mechanics Research Communications, vol. 35 (6), 2008, pp. 361-371.

[3] Satish Kumar Y.V., Paik J.K., Buckling analysis of cracked plates using hierarchical trigonometric functions, Thin-Walled Structures, Vol. 42, 2004, pp. 687-700.

[4] Brighenti R., Buckling of cracked thin-plates under tension or compression, Thin-Walled Structures, vol. 43, 2005, pp. 209-224.

[5] Brighenti R., Numerical buckling analysis of compressed or tensioned cracked thin plates, Engineering Structures, vol. 27, 2005, pp. 265-276.

[6] Brighenti R., Buckling sensitivity analysis of cracked thin plates under membrane tension or compression loading, Nuclear Engineering and Design, vol. 239, 2009, pp. 965-980.

[7] Sih G.C., Lee Y.D., Tensile and compressive buckling of plates weakened by cracks, Theoretical and Applied Fracture Mechanics, Vol. 6, 1986, pp. 129-138.

[8] Paik J.K., Kumar Y.V., Lee J.M., Ultimate strength of cracked plate elements under axial compression or tension, Thin-Walled Structures, vol. 43, 2005, pp. 237-272.

[9] Chater E., Hutchinson J.W., on the propagation of bulges and buckles, Journal of Applied Mechanics, vol. 51, 1984, pp. 1-9.