Sheykhi, D., Najafi Zadeh, M., Nezam Abadi, A. (2013). Experimental and Numerical Analysis of the Critical Buckling Load of Cracked Sheets. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 6(3), 1-6.
D. Sheykhi; M.M. Najafi Zadeh; A.R. Nezam Abadi. "Experimental and Numerical Analysis of the Critical Buckling Load of Cracked Sheets". Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 6, 3, 2013, 1-6.
Sheykhi, D., Najafi Zadeh, M., Nezam Abadi, A. (2013). 'Experimental and Numerical Analysis of the Critical Buckling Load of Cracked Sheets', Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 6(3), pp. 1-6.
Sheykhi, D., Najafi Zadeh, M., Nezam Abadi, A. Experimental and Numerical Analysis of the Critical Buckling Load of Cracked Sheets. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 2013; 6(3): 1-6.
Experimental and Numerical Analysis of the Critical Buckling Load of Cracked Sheets
1MSc Student, Department of Mechanical Engineering, Arak Branch, Islamic Azad University, Arak, Iran.
2Associate Prof., Department of Mechanical Engineering, Arak Branch, Islamic Azad University, Arak, Iran
3Assisstant Prof., Department of Mechanical Engineering, Arak Branch, Islamic Azad University, Arak, Iran
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.
بررسی بار بحرانی کمانش ورق ترک دار به دو روش تجربی و عددی
Authors [Persian]
دانیال شیخی, محمدمهدی نجفی زاده, علیرضا نظام آبادی
Abstract [Persian]
فروپاشی در اثر کمانش یک پدیده ی کاملاً معمول در ورق های تحت فشار است. هنگامی که این سازه ها بر اثر گذر زمان دچار نقص هائی همچون خوردگی و ترک می گردد نسبت به وقوع این پدیده حساس می گردد و بار بحرانی آن به میزان قابل توجهی کاهش پیدا می کند. از این رو در این مقاله ورق هایی از جنس آلومینیوم Al 1200 با ترک هایی در قسمتی از ورق در نظر گرفته می شود. اثر زاویه ی ترک بر روی بار بحرانی کمانش به دو صورت آزمایشگاهی و تئوری محاسبه می شود. آزمایشها با استفاده از دستگاه STM-250 وتحلیل های تئوری با استفاده از نرم افزار آباکوس صورت می گیرد و در نهایت نتایج تئوری و آزمایشگاهی با یکدیگر مقایسه می شوند
Keywords [Persian]
کمانش، ورق ترک دار، بار بحرانی، زاویه ی ترک
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.
Top