رسالة ماجستير بعنوان The “45 Degree Rule” and Its Impact on Strength and Stiffness of a Shaft Subjected to a Torsional Load Thesis Submitted to The School of Engineering of … تابع قراءة رسالة ماجستير بعنوان The “45 Degree Rule” and Its Impact on Strength and Stiffness of a Shaft Subjected to a Torsional Load