A M12 x 1.25 hex-head bolt with a nut is used to clamp two 25-mm thick steel plates. The nut heightis 10.8 mm. The elastic modulus of steel is 207 GPa.(a) What are the bolt diameter (d) and pitch (p) for the bolt?(b) Determine a suitable length (L) of the bolt, rounded up to the nearest 5 mm?(c) If the total threaded length of the bolt LT = (2d +6) mm, how much of its threaded lengthwill be in the grips?(d) If the effective tensile stress area of the bolt (A:) is 84.3 mm², calculate the bolt stiffness(kb).(e) Assume that the stiffness of each steel plate is 4,200 MN/m. Calculate the total memberstiffness (km).(f) If the bolt is tightened with a force of 10 kN, what will be the stress in the bolt due totightening? Is it a tensile stress, compressive stress or shear stress?(g) After tightening the bolt, a tensile force of 12 kN is applied on the plates, what will be thestress in the bolt now?

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A M12 x 1.25 hex-head bolt with a nut is used to clamp two 25-mm thick steel plates. The nut height is 10.8 mm. The elastic modulus of steel is 207 GPa. (a) What are the bolt diameter (d) and pitch (p) for the bolt? (b) Determine a suitable length (L) of the bolt, rounded up to the nearest 5 mm? (c) If the total threaded length of the bolt LT= (2d +6) mm, how much of its threaded length will be in the grips?

A M12 x 1.25 hex-head bolt with a nut is used to clamp two 25-mm thick steel plates. The nut height is 10.8 mm. The elastic modulus of steel is 207 GPa. (a) What are the bolt diameter (d) and pitch (p) for the bolt? (b) Determine a suitable length (L) of the bolt, rounded up to the nearest 5 mm? (c) If the total threaded length of the bolt LT= (2d +6) mm, how much of its threaded length will be in the grips?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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