1. A study of the response of a human body subjected to vibration/shock is important in many applications. In a standing posture, the masses of head, upper torso, hips, and legs and the elasticity/damping of neck, spinal column, abdomen, and legs influence the response characteristics. Develop a sequence of three improved approximations for modeling the human body.

1. A study of the response of a human body subjected to vibration/shock is important in many applications. In a standing posture, the masses of head, upper torso, hips, and legs and the elasticity/damping of neck, spinal column, abdomen, and legs influence the response characteristics. Develop a sequence of three improved approximations for modeling the human body.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

10. As illustrated in Fig10, a simply supported beam is loaded by a couple of 1500 N m. The beam has a cross section resembling a channel, as shown. Calculate the beam's maximum tensile and compressive stresses. 3m 3 cm 30 cm Rc 2 m HO 12 cm C mm 3 cm 1500 N-m 3 cm 10.5 cm XG All dimensions are cm
The pipe with two rigid caps attached to its ends is subjected to an axial force P. (Figure 1) a Section a - a P If the pipe is made from a material having a modulus of elasticity E and Poisson's ratio v determine the change in volume of the material. Express your answer in terms of some or all of the variables P, E, L, v, r₁, and ro.
Figure 4–5a shows a cantilever beam with an end load. Normally we model thisproblem by considering the left support as rigid. After testing the rigidity of thewall it was found that the translational stiffness of the wall was kt force per unitvertical deflection, and the rotational stiffness was kr moment per unit angular(radian) deflection (see Fig. 4–5b). Determine the deflection equation for the beamunder the load F.
A shaft having length equal to 10 m and diameter equal to (57) mm is simply supported at both ends. The shaft carries four masses (157) kg, (207) kg, (257) kg and (307) kg. These masses are located at a distance of 1.5 m, 2.5 m, 5.5 m and 7.5 m from the left hand side support, respectively. The modulus of elasticity, E, for the material of the shaft is 200 GN/m2 and mass density for the shaft material is 7500 kg/m3. Determine critical speed of the shaft in revolutions per minute for the following two cases: Effect of the mass of the shaft is neglected. Effect of the mass of the shaft is considered. What is the usefulness of the answers determined in this problem?
Problem 1.13 A uniform beam weighing 500 N is held in a horizontal position by three vertical wires, one attached to cach end of the beam, and one at the mid-length. The outer wires are brass of diameter 0.125 cm, and the central wire is of steel of diameter 0.0625 cm. If the beam is rigid and the wires are of the same length, and unstressed before the beam is attached, estimate the stresses in the wires. Young's modulus for brass is 85 GN/m' and for steel is 200 GN/m'. Brass Steel Brass 500 N
A homogeneous, prismatic beam shown in the figure has a weight of 4.7 kN/m and is carrying a uniformly distributed load, w. It is attached to two cables made of different materials with the following properties: Material Modulus of Elasticity Allowable Stress A 200 GPa 95 MPa B 240 GPa 105 MPa Design the size of the cable such that after the load has carried by the cables the beam will remain in horizontal position. Fill up the table 1 with your design. Table 1: Design of Cables Material Cross-sectional Area (sq.mm.) Actual Axial Stress (MPa) A B See image attach
Example 21.18. A solid circular steel rod 6 mm in diameter and 500 mm long is rigidly fastened to the end of a square brass bar 25 mm on a side and 400 mm long, the geometric axis of the bars lying along the same line. An axial tensile force of 5 kN is applied at each of extreme ends. Determine the elongation of assembly. For steel E = 200 GPa and for brass E₁ = 90 GPa
As a construction engineer, you are asked to evaluate the maximum allowable vertical shear Vmax that may act on the hollow stainless-steel beam having a rectangular cross section as shown in Figure Q4. Discuss the effect of geometry on the shear stress developed in the beam | 20 mm y 350 mm V 10 mm- -10 mm 1 30 mm E 200 mm
A 50-m steel tape is of standard length under a pull of 5.50 kg and a temperature of 20°C when supported throughout its entire length. The tape weighing 0.05 kg/m, has a cross sectional area of 0.04cm2 and a modulus of elasticity of 2x106 kg/cm2. This tape was used in the field to measure a distance that was determined to be 458.65m. At the time the measurement was made, a constant pull of 8kg was applied with the tape supported at endpoints only. During the measurement, it was a cool atmosphere at an average temperature of 18°C. Determine the correct length of the line.
13.Two identical cubes are placed in different liquids with different densities. Is the buoyant force on the cube on the left greater than, less than, or equal to the buoyant force on the cube on the right?
1. An axial force of 250 kN is applied to the assembly shown, made of cylindrical brass core surrounded by an aluminum shell. The axial force is applied through rigid end plates. a) Determine the normal stress in each of the metal components, given that Ebrass = 105 GPa and Ealum = 70 GPA. 100mm b) What is the axial deformation of the assembly? 200mm 200mm
A line was found out to be 2865.35 m long when measured with a 30-m tape under a steady pull of 6.5 kg at a mean temperature of 30 degC. Determine the correct length of the line if the tape used is of standard length at 20 degC under a pull of 5.5 kg. Assume that the cross-sectional area of the tape is 0.025 cm², elastic modulus of tape is 2.10 x 106 kg/cm? and coefficient of linear expansion of steel is 11.6 x 106 per degC.