Dynamics 1 (a) In this simple frame-work, members have different lengths, cross-sectionalareas and materials, and are pin jointed.(i) Describe how you would develop thefinite element equation of equilibriumin global form indicating the appropriateboundary conditions.(iii) If the members were welded at the joints,would the truss elements still be suitablefor this problem? Give reasons.2F

However, based on your description of the problem and the information you've provided so far, I can…

Answered: (a) In this simple frame-work, members…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A bolted joint consists of 40-mm thick AISI 1020 steel plate sandwiched between two 12-mm thick aluminum plates and compressed with a bolt and nut with no washers. The bolt is M14x 2, property class 5.8. (a) Determine a suitable length for the bolt, rounded up to the nearest 5 mm. (b) Determine the bolt stiffness. (c) Determine the stiffness of the members. (d) Determine the joint stiffness constant
Identify 3 car’s components in general, one subjected to tension, the 2nd to compression, and the 3rd component subjected to a shear force. Find a suitable factor of safety of your components and calculate the working stresses and strains for each of your components. Assume values to do the caculations. How does an increase in operational temperature affect your results?
An overlapped fillet welded lap joint is subjected to cyclical stresses with a nominal stress range of 100 MPa. The maximum plate thickness for the adjoining members is 20 mm. The detail category is identified as 63. A capacity factor 0.90 can be assumed. What is the expected life in terms of number of cycles acccording to AS4100? Pick the closest answer. (a) 4.81x105 (b) 1.96×105 (c) 6.35×105 (d) 3.65×105 (e) 7.69x105
Design a triple riveted butt joint with equal double cover plates (zig-zag riveting) is used for The longitudinal joint of boiler of D m internal diameter. The working steam pressure is P N/mm2 and the efficiency of the joint is B per cent. If the allowable working stresses for Plate are 120 Mpa in tension, 80 Mpa in shear and 180 Mpa in crushing and the allowable Working stresses for the rivet are 125 Mpa in tension, 84 Mpa in shear and 180 Mpa in Crushing. Design a double riveted lap joint with zig-zag riveting circumferential also. Checked the efficiency of longitudinal and circumferential joints. B=83 P=1.1 D=2.1
c. Determine critical load and critical stress for the column/axial member. Justify selection of the formulas for the calculationsInformation provided: i) Boundary/end conditions: In this instance, the column is assumed to be fixed at both ends, simulating conditions where the column is integrally connected to the floor slabs above and below, a common condition in many mechanical design contexts. ii) External axial load: Assuming the column supports a floor with a uniformly distributed load, we've calculated the total axial load on the column to be 453.589 kN. iii) Properties of the column: The cylindrical column is composed of steel, a commonly used material with a known Young's modulus (E) of approximately 200 GPa. The steel has a yield stress of around 250 MPa and ultimate stress near 400 MPa. The diameter (d) of the column is 0.3048 m, providing a cross-sectional area (A) of π*(d/2)² = 0.073 m².
Example 4-3 The two C12 x 30s shown in Fig. 4.2 have been selected to support a dead tensile working load of 120 k and a 240-k live tensile working load. The member is 30 ft long. consists of A36 steel, and has one line of three 7/8-in bolts in each channel flange 3 in on center. Using the AISC Specification, determine whether the member is satisfactory and design the necessary tie plates. Assume centers of bolt holes are 1.75 in from the backs of the channels. Solution. Using C12 x 30s (A, 8.81 in? cach, t, 0.501 in, I, 162 in' each, 1, 5.12 in each,y axis 0.674 in from back of C,r, = 0.762 in) 5.326 in 0.674 in cg. of C -x 1200 in 2-C12 x 30s (A = 881 in' each) Ln g-1 in 8} in- 12 in (a) Tie plate Length of tie plate Width of tie plate FIGURE 4.2 Built-up section for Example 4-3. (b)
Te - Effective throat thickness well in mm = 6 sin45° Consider the following drawing in which plate 1 is welded onto plate 2 as shown for tensile and shear loading. The plates are fillet welded with a weld thickness of 6 mm as shown for a length of 150 mm. The plates have an ultimate strength of 275 MPa and the welding was done with F70 welding electrodes, which possesses an ultimate strength of 483 MPa. Consider a partial factor of safety of 1.7 for the welded joint and determine the design strength of the weld joint, both in tension (Tdw) and in shear (Vdw) due to the forces acting on it. a) Determine the design strength of the following weld in tension ( ) due to vertical forces. b) Determine the design strength of the weld in shear ( ) due to horizontal forces. Attached pic is shear equation for calculation Tension equation for calculation is: Tdw = FyLwte /Ymw
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Stuck need help! Problem is attached. please view attachment before answering. Really struggling with this concept. Please show all work so I can better understand ! Thank you so much.
Times New.. 18 7 2 3 Specify a suitable aluminum casting alloy for a bar with square cross section. Length of one side of the cross-section is 50 mm. The bar is subjected to an impact loading with a tensile force of 60 kN to search 立

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