35 The bolted connection shown in the figure is subjected to a tensile shear load of 90 kN. The bolts are ISO class 5.8 and the material is cold- drawn AISI 1015 steel. Find the factor of safety of the connection for all possible modes of failure. 35 3.5 35 M20 x 25 15

35 The bolted connection shown in the figure is subjected to a tensile shear load of 90 kN. The bolts are ISO class 5.8 and the material is cold- drawn AISI 1015 steel. Find the factor of safety of the connection for all possible modes of failure. 35 3.5 35 M20 x 25 15

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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4. A beam has fluctuating bending moment and is not rotating. The bending moment has a maximum of 1kNm and a minimum of 100kNm. The beam is made of AISI1020CD steel with a square cross section. There are no stress concentrations. a. Determine the fully corrected endurance limit as a function of the cross section (cross section unknown) b. Determine the required size for a factor of safety of 2 using the Gerber Fatigue Failure Theory
Required information Two solid cylindrical rods AB and BC are welded together at 8 and loaded as shown. Take di = 30 mm, d2 = 50 mm, and P = 85 KN. 0.9 m 125 AN 125 IN 12 m Find the average normal stress at the midsection of rod BC. (Input the answer with the appropriate sign.) The average normal stress at the midsection of rod BC is | MPa.
A cylindrical 1045 steel bar (see the figure below) is subjected to repeated compression- tension stress cycling along its axis. If the load amplitude is 23,000 N, calculate the minimum allowable bar diameter (in mm) to ensure that fatigue failure will not occur. Assume a factor of safety of 2.0. Maximum stress, S (MPa) 700 600 500 400 300 200 100 0 4340 steel 104 Ti-5Al-2.5Sn titanium alloy 70Cu-30Zn brass EQ21A-T6 Mg alloy 105 1045 steel Ductile cast iron 107 2014-T6 Al alloy 108 10⁹ 106 Cycles to failure, N Data taken from the following sources and reproduced with permission of ASM International, Materials Park, OH, 44073: ASM Handbook, Vol. I, Properties and Selection: Irons, Steels, and High-Performance Alloys, 1990; ASM Handbook, Vol. 2, Properties and Selection; Nonferrous Alloys and Special- Purpose Materials, 1990; G. M. Sinclair and W. J. Craig, "Influence of Grain Size on Work Hardening and Fatigue Characteristics of Alpha Brass," Transactions of ASM, Vol. 44, 1952.
Required information A short cantilevered round peg made from AISI 1030 cold-drawn steel is 40 mm in diameter and extends 10 mm from the wall. It is loaded, as shown, with a force F= 50 kN applied at the tip in the negative z direction and a torque T=800 N-m. The cross section at the wall is also shown, with points of interest A, B, and C. 10 mm 92 The minimum factor of safety is 2.93 Cross section at the wall Evaluate the state of stress at points A, B, and C, determine the critical case, and evaluate the minimum factor of safety based on the distortion-energy theory.
2) The pillow block shown in Figure 2 is attached to the fixed plate by using two M20x1.5 ISO class 5.8 bolts. The member stiffness per bolt is given as km=3.5kb. The connection is assumed to be permanent. Determine the factor of safety values guarding against yielding, over load and joint seperation. 9 kN Rotating shaft Pillow block Metric (ISO) screw Figure 2
The bolted connection shown in the figure is subjected to a tensile shear load of 100 kN. The bolts are ISO class 5.8 and the material is cold-drawn AISI 1040 steel. Find the factor of safety of the connection for all possible modes of failure. 35 - 35 15 M20 x 2.5 35 35 - 20
b. The steel compression strut BC, that supports the frame AB via pin-joint in Figure Q5b, is a steel tube with an outer diameter of D. = 48 mm and a wall thickness of t = 5 mm. Determine the factor of safety against elastic buckling if a distributed load of 10 kN/m is applied to the horizontal frame member AB as shown. Let Est = 210 GPa = 340 MPa. and y 1 m A C 10 kN/m 2 m Figure Q5b M SITI TEKNOLOGI MALA B MALAYS BR TEKNOLGI WIN
The specifications for a coil spring are known. Infinite fatigue life is required, using a safety factor of 1.3 applied to the maximum load only. The fatigue strength can be represented by a line between τmax= 600, τmin= 0 and τmax= τmin= 900 MPa.Assume both end plates are in contact with nearly a full turn of wireand that the end plate loads coincide with the spring axis.Determine a suitable combination of d, D, and N, if C = 8
A bolted lap joint using ISO 5.8 bolts and members made from cold-drawn SAE 1040 steel is shown in the figure. Assume the bolt threads do not extend into the joint. Find the tensile shear load F that can be applied to this connection to provide a minimum factor of safety of 2.5 for the following failure modes: shear of bolts, bearing on bolts, bearing on members, and tension of members. 40 ↑ 70 40 ↑ 80 M20 × 2.5 20 20
01: A hollow steel tube (1) with an outside diameter of 2.75 in. and a wall thickness of 0.25 in, is fastened to a solid aluminum rod (2) that has a 2 in. diameter and a solid aluminum rod (3) that has a 1.375 in. diameter (E -30,000 ksi, E-10,000 ksil. The bar is loaded as shown in figure below, Determine: (1) the displacement of point D with respect to the fixed support at A. (2) the maximum normal stress in the entire axial assembly. (3) the normal strain in the steel tube (1). 34 kips 18 kips 25 kips 18 kips 34 kips 60 in. 40 in. 30 in.
• Bars (1) have a cross-sectional area of A₁ = 0.65 in.2 and a length, L₁= 7 ft. • Bars (1) are made of cast iron with an elastic modulus of E₁ = 24,000 ksi, a coefficient of thermal expansion, a₁ = 12.3 x 10-6/°F and yield strength of oy = 120 ksi. • Bar (2) has a cross-sectional area of A₂ = 1.45 in.² and a length, L₂ = 5.5 ft. • Bar (2) is made of stainless steel with a coefficient of thermal expansion, a₂ = 10.6 × 10-6/°F. • The stress-strain diagram provided below presents the results of the stainless steel's (i.e., Bar (2)) bar tension test. • There is a gap of A = 0.1 in. in the connection at B and a = 3 ft. • All bars are unstressed before a load P = 12 kips is applied and the temperature increases by AT = 40°F. Stress-strain diagram for stainless steel bar: (1) a Stress (ksi) L2 Rigid bar 120 100 80 60 40 20 0 0 0 B (2) P a (1) C Upper scale L₁ Connection details at node C Lower scale. C 0.025 0.050 0.075 0.100 0.125 0.150 0.175 0.006 0.008 0.010 0.012 0.014 0.002 0.004 Strain…
2" Problem 5: For the component shown in the figure. Where is the critical location? What steel do you recommend based on yielding and factor of safety n=3. (F=1000 lb) == 24243,936N Paper Buckling => (5,00016) (1125/2) J 1/64 (1125/9 = 26075,95 1.25" r = 0.06" F 51 Per = ('T ES 02 2F T = 5F lb - in 3350 72518.87 86000 = 98.99) ² 2n, 3