عزتی, مهدی

دانشگاه خواجه نصیرالیدین طوسی

[ 1 ] - ارزیابی روابط نیرو-تغییرمکان اعضای لوله‌ای فولادی تحت ضربه جانبی شبه‌استاتیکی سقوط اجسام

In the current study a numerical simulation approach has been chosen to simulate the force-deflection response of tubular member under lateral impact in the absence of internal pressure or axial force and the results have then been compared with analytical relations. Two series small scale experiments were carried out by the authors on X70 steel tubes and D/t of 22 and the numerical model has t...

[ 2 ] - بررسی آزمایشگاهی و عددی حساسیت باربری محوری فشاری اعضای لوله‌ای فولادی به ناراستی‌های هندسی

In practice, steel tubulars lack a mathematically perfect cylindrical shape, due to non-uniformities introduced during the manufacturing process, construction methods, damages incurred in the transport. The imperfections might exist in the cross section and along the tubular member. Imperfections can greatly affect the behavior of tubular members. The work presented in this paper is perusing ef...