Example 18.14. A mass is held by three springs as shoun in Fig. 18.22. Assume theing friction on the floor is negligible, as are the inertial effects of the rollers. The springanstants are ki = 6 N/mm, k2 = 4 N/mm, k3 =2 N/mm, g= 9810 mm/sec". Find p.%3D%3D%3Dk2k3160 Nwwwwww(a) Series and Parallelk1160 N(b) ParallelFig. 18.22: For Example 18.14

Answered: Image /qna-images/answer/c88b2d39-a91c-4340-b072-c50869e3eb41.jpg

Answered: Example ing friction on the floor is…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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QUESTION 1 The assembly consists of two rods and a horizontal bar BC. Each of the rod AB and CD is made of aluminum and has a cross-sectional area of 125 mm2. A point lqad of 5 kN is applied at point E were located 0.20 m from B. Knowing that they support the rigid member BC, calculate the deflection of point E. Modulus of elasticity for aluminium is 75 GPa. P- 5 kN 0.36 m E B C 0.44 m 0.20 m
A two pinned end bars AB (Copper), ? = 850 ??2, ? = 120 ??? and BC (Aluminum), ? = 1000??2, ? = 70 ??? is subjected to a horizontal force of 100 ?? applied at pin B as shown in the figure, determine the horizontal displacement of pin B.
500 MPa 0.006 120 kN 100 mm - 20 mm 120 kN The tensile load is now removed, and the ends are now subject to a shear force of 10 KN in the same plane as the cross-section (i.e., the force is acting "horizontally"). Assume elastic behavior. d) Determine the shear strain resulting from this shear force (ignoring any bending effects) e) What is the horizontal displacement of one end of the rod relative to the other end under this shear force?
A:Y 211O 2_531929016114... -> A rod is composed of an aluminum section rigidly attached between steel and bronze sections, as shown in Figure below. Axial loads are applied at the positions indicated. If P = 11 KN and the cross sectional area of each rod is 312.5 mm, determine the stress in each section. 4P Steel Bronze |Aluminum 609.6 mm 914.4 mm 762 mm
Problem 6.99 The 390-kg drum has a center of mass at point G. The grip at B on member DAB resists both horizontal and vertical components of force at the rim of the drum. A is a pin, C and D are smooth pads. (Figure 1) Figure 1 ✓of 1 60 mm; 60 mm: 390 mm 600 mm. AT ID 100 mm 30° E 'G Part A Determine the x and y components of force acting at pin A on EAC using scalar notation. Express your answers using three significant figures separated by a comma. ΠΙΑΣΦ A₂, A₂= Submit Nc = Submit Part C Part B Determine the magnitude of the reaction on smooth pad C. Express your answer to three significant figures and include the appropriate units. ND = 10 Submit My Answers Give Up Di HÅ Value Value vec Units μᾶ My Answers Give Up Determine the magnitude of the reaction on smooth pad D. Express your answer to three significant figures and include the appropriate units. Units 2 ? My Answers Give Up ? kN wwwww ? |
4 m 450 mm [s0 mn [50 mn 18 350 mm 50 mm Figure la Figure Ib Before a diver jumps into the water, helshe stands at point C, causing a deflection of the board A-B-C in the figure. The board A-B8-C has a modulus of elasticity of E = 15 MPa with the sketched dimensions and cross-section (fig. 1b). Assume g=10 mis?. Provide all steps of your working and solutions handwriten; include diagrams and coordinate systems. a. Determine the reactions at each support A and B. Use the variable w for the weight of the diver, include a free-body diagram.
H.W 5.1 Determine the stress in each section of the bar shown in Fig. when subjected to an axial tensile load of 20 kN. The central section is 30 mm square cross-section; the other portions are of circular section; their diameters being indicated. What will be the total extension of the bar? For the bar material E = 210GPa. 20KN 20mm 1 30mm 250mm -30mm (2) 100mm 15mm 400mm 20KN
Determine the deformation of the steel rod shown in Fig. under the given loads (E = 200 GPa). . A = 581 mm² A B 300 kN 300 mm A = 194 mm² C 180 kN ++ 300 mm 400 mm D 120 kN
It is required to deisgn a close coiled helical spring which shall deflect10 mm under an axial load of 100 N at a shear stresss of 90 N/mm². Modulus of rigidity is 8 x 104 MPa. The mean diameter of the coils is 10 times diameter of the wire. Find the diameter and length of the wire necessary to form the spring.
Bronze 2 m Steel 1.0 m A H0.6ml-1.0 m- -0.8 m→ 50 kN The figure shows a rigid bar that is supported by a pin at A and two rods, one made of steel and the other of bronze. Neglecting the weight of the bar, compute the stress in each rod caused by the 50-kN load, using the following data: Steel Bronze Area (mm?) E (GPa) 600 300 200 83
"The force applied at the handle of the rigid lever causes the lever to rotate clockwise about the pin B through an angle of 2°. Determine the average normal strain in each wire. The wires are unstretched when the lever is in the horizontal position. (i of. 200 mm 200 mm 300 mm 300 mm E B D 200 mm H Figure 3. Problem 3.
The box wrench is subjected to the 50 lb force. (Figure 1) Figure 2 in. a 12 in. 0.5 in. A B Section a-a 1 of 1 50 lb Part A If t, determine the principal stress at point B on the cross section of the wrench at section a-a. Express your answers using three significant figures separated by a comma. VG ΑΣΦ [41 01.02 Submit Part B * Incorrect; Try Again; 29 attempts remaining Previous Answers Request Answer Tmax in-plane = vec Determine the maximum in-plane shear stress at point B on the cross section of the wrench at section a-a. Express your answer to three significant figures and include the appropriate units. μA Provide Feedback Value Submit Previous Answers Request Answer [w] ? Units * Incorrect; Try Again; 28 attempts remaining ? ksi

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