For the thin, I-section with longer left flanges and varying thickness as shown below, show that...
For the thin, I-section with longer left flanges and varying thickness as shown below, show that the distance ξs of the shear center from the vertical web is given by: where ρ = d/h. The thickness t is taken to be negligibly small in comparison with the other dimensions. d (1+12p)
A beam is constructed with an I-section. The dimensions of the cross-section as well as its simplified wireframe/median-line model are shown below, where the symbols, O and , represent the centroid and shear center of the I-section, respectively. Assume the flange and web thicknesses (/f./) are much b=B smaller than the width and height of the section (B.H) and define . Due to the double-symmetry of the cross-section, we have Q- O. As shown in the figures, the cross section...
The cross-section of a thin walled single cell tube is shown in Figure 1 below. The tube supports a torque of T-3 kN.m over a length of 8 m. Consider G of the material as 79 GPa. 1. Determine the shear stresses in the walls and angle of twist 2. A vertical web of wall thickness of 2mm is added in the single cell to make it a two cell tube shown in Figure 2 below. Also determine the shear...
please show all work, i'll rate! [6] The section shown is a lumped, thin-walled section with Ao=Ab=1 in2 & twed=0.1". Determine (a) the reacting shear flows in the web, and (b) the location e of the horizontal shear center. Then (c) draw the section with all shear flows and the shear center shown and dimensioned
Consider a WT12x51.5 A992 section subjected to shear forces Centroid (i) With the thin-wall assumption the T section consists of the two lines passing through the center lines of the web and flange as shown. Using this two line model compute centroid and x and y moments of inertias. Note that these values will be slightly different than those given in the AISC tables for this section. The tabulated values are more accurate and should be used for design. However...
I am completing a study guide for the next section of class because I am trying to get ahead. Any suggestions? A wave whose displacement velocity is either in the same direction or opposite direction as the wave velocity describes which type of a wave? a. Transverse wave b. Mechanical wave c. Longitudinal wave d. Electromagnetic wave Which of the following are always one wavelength apart and are drawn as parallel lines? Plane waves b. Wave fronts c. Wave phase...
How do I solve this? Problem 2(50 points) The roof of the Edwin A. Stevens building is to be redesigned to accommodate a billboard for Stevens Institute of Technology. The new billboard will weigh 40 kips and be supported equally by two columns located 9 ft from the rear of the building. The beams supporting the new roof will be simply supported as shown. (Note there is a 5 ft overhang at the front of the building). For the grade...
PLEASE SHOW WORK AND ANSWER ALL PARTS. WHEN I ASKED THE SECTIONS SEPARATELY THE ANSWERS DID NOT MATCH, THANK YOU!!! All of the questions on this concern a space station, consisting of a long thin uniform rod of mass 4.4 x 106kg and length 171 meters, with two identical uniform hollow spheres, each of mass 1.3 x 106 kg and radius 57 meters, attached at the ends of the rod, as shown below. Note that none of the diagrams shown...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...
I need help to write a nice introduction for experiment 6 please ( no hands write ) typing Thank you HEAT TREATMENT OF STEELS EXPERIMENT 6 EXPERIMENT 6 HEAT TREATMENT OF STEELS THEORY The Effect of Cooling Rate One of the most convenient methods for controlling the properties of a given steel, i.e., a steel whose composition is already fixed, consists of austenizing the steel and ten cooling to room temperature at some predetermined rate. A variation of cooling rates...