THERMAL BUCKLING OF RECTANGULAR PLATES WITH DIFFERENT TEMPERATURE DISTRIBUTION USING STRAIN ENERGY METHOD

• الحاوية / القاعدة: Journal of Engineering
• المؤلفون الرئيسيون: Wael R. Abdul-Majeed, Muhsin J. Jweeg, Adnan N. Jameel
• التنسيق: مقال
• اللغة: الإنجليزية
• منشور في: University of Baghdad 2011-10-01
• الموضوعات: Thermal bulking, Strain energy, Thin plate, Ends condition, Buckling mode
• الوصول للمادة أونلاين: https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/3010
• تدمد: 1726-4073; 2520-3339

By using governing differential equation and the Rayleigh-Ritz method of minimizing the total potential energy of a thermoelastic structural system of isotropic thermoelastic thin plates, thermal buckling equations were established for rectangular plate with different fixing edge conditions and with different aspect ratio. The strain energy stored in a plate element due to bending, mid-plane thermal force and thermal bending was obtained. Three types of thermal distribution have been considered these are: uniform temperature, linear distribution and non-linear thermal distribution across thickness. It is observed that the buckling strength enhanced considerably by additional clamping of edges. Also, the thermal buckling temperatures and thermal buckling load have lowest values at first mode of buckling for all types of ends condition and with all values of aspect ratios