Final Exam PDF

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Final Exam...

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ANKARA YILDIRIM BEYAZIT UNIVERSITY

QUESTION 1

CIVIL ENGINEERING

QUESTION 2

2019-2020 SPRING SEMESTER

QUESTION 3

Name-Surname:

CE204-STRENGTH OF MATERIALS II

Number:

QUESTION 4

FINAL EXAM QUESTION 5 DURATION: 120 DK TOTAL

Question 1: The circular shaft AB is subjected to a uniform distributed torque of t = 20 kNm/m. Radius of the cross section of the shaft is r = 40 mm. determine a) the support reactions at the fixed supports A and B, b) maximum shear stress in the cross section at C. (The shear modulus is G = 80 GPa)

L = 1,4 m A

C

0,7 m

t = 20 kNm/m

B

0,7 m

Question 2: Knowing that b = 20 mm and h = 80 mm. The cantilever beam AB is subjected to one horizontal and one vertical load shown. Determine the state of stress at point K .

K

8 kN b/2

A b/2

10 kN b

Question 3: The overhanging beam ABCD carries a uniform distributed load w = 15 kN/m at end C. a) Using integration method, derive the equation of the elastic curve for portion AB of the beam, b) Using Moment Area theorems, determine the slope at D. (E= 200 GPa, I = 60x106 mm4) y

w = 15 kN/m

C D 5m

2m

x

1m

Question 4: Using Castigliano’s Theorem, determine the slope at A. (E= 200 GPa, I = 40x106 mm4)

w = 10 kN/m

B

3m

C

5m

Question 5: A rectangular column with cross-sectional dimensions b and h is fixed supported at end A and free at end C. At midheight, the column is restrained in the plane of the figure (prevents rotation and deflection), but is free to deflect and rotate perpendicularly to the plane of the figure. Knowing that b = 50 mm, h = 200 mm and L =2,0 m determine the allowable load P using a factor of safety with respect to buckling of 2,5. (E = 75 GPa)

A...