STATICS+MECHANICS OF MATERIALS-ACCESS
2nd Edition
ISBN: 9781259748684
Author: BEER
Publisher: MCG
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Member ABC, which is supported by a pin and bracket at C and a cable BD, was designed to support the 16-kN load P as shown. Knowing that the ultimate load for cable BD is 100 kN, determine the factor of safety with respect to cable failure.
Two rigid bars AC and BC are connected by a pin at C as shown. Knowing that the torsional spring at B is of constant K, determine the critical load Pcr for the system.
A 1-in.-square aluminum strut is maintained in the position shown by a pin support at A and by sets of rollers at B and C that prevent rota-tion of the strut in the plane of the figure. Knowing that LAB=3 ft, determine (a) the largest values of LBC and LCD that can be used if the allowable load P is to be as large as possible, (b) the magnitude of the corresponding allowable load. Consider only buckling in the plane of the figure and use E=10.4 *106 psi.
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- Members AB and CD are 30-mm-diameter steel rods, and members BC and AD are 22-mm-diameter steel rods. When the turnbuckle is tightened, the diagonal member AC is put in tension. Knowing that a factor of safety with respect to buckling of 2.75 is required, determine the largest allowable tension in AC. Use E= 200 GPa and consider only buckling in the plane of the structure.arrow_forwardThe frame ACD is supported by ball-and-socket joints at A and D and by a cable that passes through a ring at B and is attached to hooks at G and H . Knowing that the frame supports at point C a load of magnitude P = 268 N, determine the tension in the cable.arrow_forwardThe structure shown is composed of an AGJ truss and a KLMO truss connected by the AL link. If it is known that P = 2 kN; R = 5kN; a = 1.5 m and b = 2m, determine:to. The value of the force Q, necessary to keep the system in equilibrium.b. The axial loads of the reinforcement elements. (need free body diagrams)arrow_forward
- (a) Considering only buckling in the plane of the structure shown and using Euler’s formula, determine the value of θbetween 0 and 90° for which the allowable magnitude of the load P is maximum. (b) Determine the corresponding maximum value of P knowing that a factor of safety of 3.2 is required. Use E= 29 x 106 psi.arrow_forwardTwo bars AD and DG are connected by a pin at D and by a spring AG . Knowing that the spring is 300 mm long when unstretched and that the constant of the spring is 5 kN/m, determine the value of x corresponding to equilibrium when a 900-N load is applied at E as shown.arrow_forwardA load P is supported as shown by a steel pin that has been inserted in a short wooden member hanging from the ceiling. The ultimate strength of the wood used is 60 MPa in tension and 7.5 MPa in shear,while the ultimate strength of the steel is 145 MPa in shear. Knowing that b = 40 mm, c = 55 mm, and d = 12 mm, determine the load P if an overall factor of safety of 3.2 is desired.arrow_forward
- In the truss shown, members AC and AD consist of rods made of the same metal alloy. Knowing that AC is of 1-in. diameter and that the ultimate load for that rod is 75 kips, determine (a) the factor of safety for AC, (b) the required diameter of AD if it is desired that both rods have the same factor of safety.arrow_forwardSolve Prob. 4.133, assuming that cable GBH is replaced by a cable GB attached at G and B.(Reference to Problem 4.133):The frame ACD is supported by ball-and-socket joints at A and D and by a cable that passes through a ring at B and is attached to hooks at G and H . Knowing that the frame supports at point C a load of magnitude P = 268 N, determine the tension in the cable.arrow_forwardKnowing that the tension in cable AE of Prob. 2.123 is 75 lb, determine (a) the magnitude of the load P, (b) the tension in cables BAC and AD.(Reference to Problem 2.123):Cable BAC passes through a frictionless ring A and is attached to fixed supports at B and C , while cables AD and AE are both tied to the ring and are attached, respectively, to supports at D and E . Knowing that a 200-lb vertical load P is applied to ring A , determine the tension in each of the three cables.arrow_forward
- A metal bar AB of a weight W is suspendedby a system of steel wires arranged as shown in thefigure. The diameter of the wires is 5/64 in., and theyield stress of the steel is 65 ksi.Determine the maximum permissible weightWmax for a factor of safety of 1.9 with respect toyielding.arrow_forwardColumn ABC has a uniform rectangular cross section with b=12 mm and d=22 mm. The column is braced in the xz plane at its midpoint C and carries a centric load P of magnitude 3.8 kN. Knowing that a factor of safety of 3.2 is required, determine the largest allowable length L. Use E=200 GPaarrow_forwardThe steel frame (E = 200 GPa) shown has a diagonal brace BD with an area of 1920 mm2. Determine the largest allowable load P if the change in length of member BD is not to exceed 1.9 mm.The largest allowable load P isarrow_forward
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Ch 2 - 2.2.2 Forced Undamped Oscillation; Author: Benjamin Drew;https://www.youtube.com/watch?v=6Tb7Rx-bCWE;License: Standard youtube license