A member is formed by connecting two steel bars shown below. Assuming that the bars are prevented from buckling sideways, calculate the magnitude force "P" that will cause the total length of the member to decrease 0.79 mm the values of elastic modulus for steel is 212 MPa. Take H1 = 7 cm, H2 = 9 cm, top bar (R) is 2 x 2 cm and bottom bar (Q) is 5 x 5 cm. Also, determine the stress-induced in each section of the bar. %3D %3D Solution: R cm x R Cm Steel bar i) Magnitude Force, P = Hi cm ii) Stress-induced in the top bar = Q cm x Qcm Šteel bar H2 cm iii) Stress-induced in the bottom bar =

A member is formed by connecting two steel bars shown below. Assuming that the bars are prevented from buckling sideways, calculate the magnitude force "P" that will cause the total length of the member to decrease 0.79 mm the values of elastic modulus for steel is 212 MPa. Take H1 = 7 cm, H2 = 9 cm, top bar (R) is 2 x 2 cm and bottom bar (Q) is 5 x 5 cm. Also, determine the stress-induced in each section of the bar. %3D %3D Solution: R cm x R Cm Steel bar i) Magnitude Force, P = Hi cm ii) Stress-induced in the top bar = Q cm x Qcm Šteel bar H2 cm iii) Stress-induced in the bottom bar =

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

See similar textbooks

Similar questions

A light ridig member AB is pinned at A and is further supported by light elastic rods CD and GF, member AB supports a 5000lb load at B the elastic modulus for the two elastic rods CD and GF is given as E= 30x106 psi and the cross-sectional area for each of these rods is 1 in2. what are the forces in the two supporting elastic rods as a results of the loading?
A device consists of a horizontal beam ABCsupported by two vertical bars BD and CE. Bar CEis pinned at both ends but bar BD is fixed to thefoundation at its lower end. The distance from A toB is 600 mm and from B to C is 350 mm. Bars BDand CE have lengths of 350 mm and 450 mm, respectively,and their cross-sectional area is 720 mm2. Thebars are made of steel having a modulus of elasticityE = 200 GPa. If load P is 20 kN, calculate the displacementat point A.
A 15-kip force is applied in the negative X direction to a rigid plate ABCD, supported by rigid links as shown. There are three vertical struts, 10-foot long, and three inclined links placed at a 450 angle with the horizontal.Determine the forces in members AH and BI. Indicate tension or compression. As part of your solution draw a complete Free Body Diagram separate from the diagram of the problem.
Assuming the pulley system below is weightless and frictionless pulley (see below), if the load of 375 N is lifted a distance d1 of 425 mm, what distance d2 does FE move. Give your answer in millimetres (mm) and to the nearest millimetre (mm).
A straight bar 450 mm long is 10 mm in diameter for the first 200 mm length and 20 mm in diameter for the remaining length. If the bar is subjected to an axial push of 10 kN, determine decrease in length of the bar. Take modulus of elasticity of bar material E = 2 × 105 N/mm²
The cable of hoist has a cross sectional of 80mm2.The hoist is used to lift a crate weighining 500 kg.The free length of of the cable is 30 m.Assume all deformation is elastic. (a) what is the stress on the cable. (b) How much will the cable extend if it is made from steel(E-200 Gpa)? (c) How much will the cable extend if it is made from polypropylene(E-1.2 Gpa)?
A 100-mmmm long rod has a diameter of 15 mmmm. If an axial tensile load of 145 kNkN is applied, determine its change in length. Assume linear-elastic behavior with E� = 200 GPaGPa.
Larger animals have sturdier bones that smaller animals. A mouse’s skeleton is only a few percent of its body weight, compared to 16% for an elephant. To see why this is so, consider a 70 kg man standing on one leg. The cross sectional area of his femur is 4.8x10-4 m2. Bone has a compressive strength of 1.00 x 108 N/m2. Please answer/label each part of the question clearly a, b, c etc a. What maximum force can act on his femur? (Give your answer in kN.) b. How many times greater is this force than the man’s weight? c. Now consider a giant man scaled up by a factor of 10 in all dimensions. What maximum force can act on the scaled up femur? (Give your answer in kN.) d. The man’s body will increase by a factor of 10 in each dimension. What will be his new weight? (Give your answer in kN.) e. If the scaled up man now stands on one leg, how many times greater is the maximum force than the man’s increased weight?
A ladder with a uniform cross-section has a length of 4.80-foot long. It weighs W Ib. It is arranged such that one end is on the ground and the other against a vertical wall. The angle of triction at all contact surtaces is 20 degrees. What is the value of the coefficient of triction? What is f, in terms of variable Na? What is the normal force at A in terms of variable W? Answer in three decimal places
Polycarbonate bars (1) and (2) are attached at their lower ends to a slider block at B that travels vertically inside of a fixed smooth slot. Load P is applied to the slider block. Each bar has a cross-sectional area of 85 mm2, a lenght of 1.25 m, and an elastic modulus E = 8GPa. Use dimensions of a = 1.15 m and b = 0.90 m. For an applied load of P =1700 N, determine: (a) the forces in bars (1) and (2) (b) the defection at B of the slider block
The frame is used to carry high-voltage wires. If b=600mm, α=30° and W=981 N, find the internal force in member HJ? (Draw free body diagram)
To support a tensile load of 65 kN, a metallic rod with a circular cross section and a length of 0.32 m will be used. It is required that the tension in the bar does not exceed 240 MPa and the maximum elongation is 0.42 mm. What is the minimum rod diameter [m] in these conditions? (Elasticity for metallic bar take the module as 220 GPa).