A loaded, simply supported beam and its cross-section are shown in the figures below. 5 kN/m 20 mm: 150 mm 20 mm 150 mm 20 mm 6m 250 me (a) (b) Calculate the moment of inertia of the section. O 30.1 x 107 m4 O 301 x 107 m4 O 301 x 106 m4 O None of these O 30.1 x 108 m4 QUESTION 8 in Problem 7 (above), what is the maximum bending stress in the beam. O 4.45 MPa O None of these 1.45 MPa O 12.7 MPa O 14.0 MPa

A loaded, simply supported beam and its cross-section are shown in the figures below. 5 kN/m 20 mm: 150 mm 20 mm 150 mm 20 mm 6m 250 me (a) (b) Calculate the moment of inertia of the section. O 30.1 x 107 m4 O 301 x 107 m4 O 301 x 106 m4 O None of these O 30.1 x 108 m4 QUESTION 8 in Problem 7 (above), what is the maximum bending stress in the beam. O 4.45 MPa O None of these 1.45 MPa O 12.7 MPa O 14.0 MPa

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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(a) The Figure la show the cross-section of a beam. All dimension are in cm. 10 2 10 Figure la (i) Calculate the centroid of the cross-section measured from the bottom of the cross section. (ii) Calculate the moment of inertia, I, for this cross-section. (iii)A pure bending moment of magnitude 1.0 kN.m is applied to the cross- section, generating compression above the neutral axis, and tension below. Calculate the maximum values of the tensile and compressive stress. (iv)The bending moment is removed. The same beam cross-section is now subject to a vertical shear force of 2.5 kN acting in the downward. Calculate the maximum horizontal shear stress. Where does it occur?
For the beam I-section below, calculate the second moment of area about its centroidal y-axis (Iyycentroid). Give your answer in m4 to 2 significant figures (not mm4). 120 mm 75 mm 425 mm 50 mm- y 150 mm 400 mm X Answer:
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Consider the beam shown in (Figure 1) Suppose that a= 15 in. b 8 in.c=1 in. and d4 in, Part A Determine the moment of inertia for the beam's cross-sectional area about the y axis Express your answer to three significant figures and include the appropriate units 1,- 740.72 in Submit Previous Answers Request Anwer Figure < 1 of 1 x Incorrect; Try Again; 5 attempts remaining Provide Feedback