The relationship between the applied torque and stresses in post-tension structures

This research presents the non-destructive testing (NDT) method to determine the resultant stresses in mild steel bar usually employed in structures. The technique utilized ultrasonic pulse-echo that determined the wave velocity change due to torque applied between bolt and nut. Mild steel bar wit...

وصف كامل

التفاصيل البيبلوغرافية
المؤلف الرئيسي: Liew, Fui Kiew
التنسيق: أطروحة
اللغة:الإنجليزية
منشور في: Universiti Malaysia Sarawak, UNIMAS 2007
الموضوعات:
الوصول للمادة أونلاين:http://ir.unimas.my/id/eprint/520/
Abstract Abstract here
الوصف
الملخص:This research presents the non-destructive testing (NDT) method to determine the resultant stresses in mild steel bar usually employed in structures. The technique utilized ultrasonic pulse-echo that determined the wave velocity change due to torque applied between bolt and nut. Mild steel bar with nominal diameter of 18 mm and 25 mm were used. The specimen was loaded by means of a torque wrench, which gave the required amount of moment of about 240 Nm.