wo flat bars loaded in tension by force P are spliced with the use of two rectangular splice plates and two 0.375 in. diameter bolts as shown in Figure P4.3. Away from the connection, the bars have a width b = 0.625 in. and a thickness t = 0.25 in. The bars are made of polyethylene having an ultimate tensile strength of 3,100 psi and an ultimate bearing strength of 2,000 psi. The bolts are made of nylon that has an ultimate shear strength of 4,000 psi. Determine the allowable load P for this connection if a safety factor of 3.5 is required. Consider tension and bearing in the bars

Q2) A plate clutch has 3 discs on the driving shaft and 2 discs on the driven shaft providing 4 pairs of contact surfaces (8 contact surfaces) each of 240 mm external diameter and 120 mm internal diameter. Assuming uniform pressure (P=constant). See figure (Q2) below. a) Find the total springs load pressing the plates to transmit 25 KW at 1575 rpm, taking μ=0.3 b) If there are 6 springs each of stiffness 13 KN/m and each of contact surface has worn away by 1.25 mm. What is the maximum power that can be transmitted if the same speed and µ? discs (driving) driving shaft (rpm) H discs (driven) direction of axial movement driven shaft

A steel panel is subjected to a compressive loading in order to improve the panel stiffness and to increase its buckling strength. It is swaged with the swage depth of 13 mm and swage angle of 60.07°. Its profile is as shown in Fig.Q2. Typical dimensions are shown in the figure and the thickness of the panel is 0.8 mm. The effective length of the panel is 750 mm. The relevant properties are: Modulus of elasticity Yield stress 200 GN/m? 240 MN/m? . Assuming that the buckling stress coefficient for a panel simply supported on both sides is 3.62 and that the post buckling relationship for the panel is Oy = 0.40, +0.60, where oav = average panel stress, o, = edge stress in panel and o = panel buckling stress, determine (a) the load/swage pitch at which initial buckling of the panel will ccur, (b) the instability load per swage pitch. (13 Discuss the effects upon the compressive strength of the panel of: (c) i) Varying the swage width; ii) Varying the swage depth 150 13 150 All dimensions…

PLEASE EXPLAIN

An idealized model of a thin-walled convertible car body cross-section is shown in figure Q16. The effect of doors and windows has been ignored. The car has vertical side walls of thickness t1 and length 1 m and a horizontal base of thickness t2 and length 1.9 m. It is constructed from aluminium with a shear modulus of 24 GPa. t₁ = 15 mm t2 = 15 mm a. For this open section determine the torsional stiffness? Give your answer to 3 significant figures in Pa m4 and non-scientific notation e.g. 10000 rather than 10e05. Do not include units in your answer Note that for an open section, the total area moment JT is the sum over all plates i as given by equation (1) below. Ir = = = Ei bit? Torsional stiffness = GJT t₂ 1.9 m 1m Figure Q16 - idealised model of a thin-walled convertible car body

PE Problem for Module 2.1: Solve the complex truss below by the method of substitution. See component reactions at the supports. Match the axial bar force by ticking the circle that corresponds to your answer according to your solution. * 2m 16KN 4m 16 KN a 1m 4m 4m 10 KN 10 KN

(5) A gas engine valve spring is loaded to 35kgf when the valve is closed & 52kgf hen the valve is open. The valve lift is 8mm. The outside diameter is to be from 38mm~45mm, & the permissible stress is 413N/mm2 . Determine: (a) the wire & outside diameter; (b) the number of effective coils; (c) the free length when it is squared & ground.

Please solve Correctly and Explain. I would like to learn

6.10 - This is a statics problem that deals with ‘Zero-Force Members’.