The steel bars were then placed in an oven to increase their length so that they would just fit on the pins. Following fabrication, the temperature in the steel bars dropped back to room temperature.
The steel link is heated until the aluminum rod can be fitted freely into the link. Determine the final normal stress a in the rod, b in the link. It is also the tensile force in the steel link. Knowing that a 0. The test specimen is a 85 -in. Knowing that an elongation of 0. Determine the 50 mm 2.
B the total length AD, b the change in diameter at the middle of the rod. A fabric used in air-inflated structures is subjected to a biaxial 3 in. For this case, which is In many situations, it is known that the normal stress in a given direction is zero. Plane sections perpendicular to the longitudinal axis remain plane and the same distance apart. Knowing that for the plastic 4. The beam must not displace more than 83 in. Knowing that the maximum allowable shearing stress is 60 psi, determine a the smallest allowable dimension b, b the smallest P required thickness a.
Shearing strain: a 1 in. Knowing that a force of mm A mm determine the modulus of rigidity of the rubber used. Determine the R2 largest allowable force P that can be applied to rod A if its deflection is not B 80 mm to exceed 2. The cube is constrained against deformations in the y and z directions and is subjected to a tensile load of 65 kN in the x direction.
A hole is to be drilled in the plate at A. If the allowable stress in the plate is 21 ksi, determine a the diameter d of the largest bit that can be used if the allowable load P at the hole is to exceed that at the fillets, b the corresponding allowable load P. A centric axial force is applied to the steel bar shown. Knowing that 5 in. After the rod has been 9-mm diameter Rod AB is made of a mild steel that is assumed to be elastoplastic 1.
Determine the required magnitude of Q and high. Determine the required magnitude of Q and d1 too high. Determine the maximum value of the force P and the permanent A force P is applied to the rod until its end A has moved down by an amount B mm set of the rod after the force has been removed.
A load P is applied at C as shown. Assuming both steels to be C mm elastoplastic, determine a the maximum deflection of C if P is gradually increased P from zero to kN and then reduced back to zero, b the maximum stress in each B portion of the rod, c the permanent deflection of C.
C cross-sectional area of mm2. Assuming both steels to be P B elastoplastic, determine a the maximum deflection of C if P is gradually increased from zero to kN and then reduced back to zero, b the maximum stress in each portion of the rod, c the permanent deflection of C. A force Each cable has a cross-sectional area of mm2 and is made of an 2m Q is applied at C to the rigid bar ABC and is gradually increased from 0 to 50 kN and then reduced to zero.
Knowing that the cables were initially taut, determine a the maximum stress that occurs in cable BD, b the maximum deflection of point C, c the final displacement of point C.
Further assume that the rods are 2m braced so that they can carry compressive forces. Knowing that the cables were initially taut, determine a the maximum stress Q that occurs in cable BD, b the maximum deflection of point C, c the 1m 1m final displacement of point C. Hint: In part c, cable CE is not taut. This composite bar is subjected as shown to a centric axial load of 16 in.
The load P is gradually increased from zero until the decreased back to zero. Determine a the maximum value of P, b the 2. The mild steel yields. Tempered steel is elastic. This composite bar is subjected as shown to a centric 2. The load P is gradually increased from zero until then decreased back to zero.
Determine a the maximum value of P, b the maximum stress in the tempered-steel bars, c the permanent set after the load is removed. The magnitude of the force Q applied at B is gradually increased from zero to kN.
C and BE, of uniform Knowing that link, b the maximum deflection of point B. Determine temperature change to cause yielding. AAC Pres Both steels are 2. Both steels are elastoplastic respectively, for the tempered and mild steel.
Determine a the increased from zero until the deformation of the bar reaches a maximum maximum value of P, b the maximum stress in the tempered-steel bars, c the permanent set after the load is removed.
Knowing that the Narrow bars of aluminum are bonded to the two sides of a thick steel plate as temperature will be slowly raised to T2 and then reduced to T1, determine a the highest temperature T2 that does not result in residual stresses, b the 58 ksi. Hint: Neglect the small stresses in the for the steel. Further assume that the aluminum is elastoplastic, with plate.
Two solid cylindrical rods are joined at B and loaded as shown. Knowing that the coefficient of friction is 0. Knowing that after being snugly fitted, the nut at mm D C C is tightened one full turn, determine a the tension in rod CD, b the deflection of point C of the rigid member ABC. Determine a the largest allowable Aluminum shell Steel change in temperature if the stress in the aluminum shell is not to exceed 1. C1 A rod consisting of n elements, each of which is homogeneous and Element n Element 1 of uniform cross section, is subjected to the loading shown.
The length of element i is denoted by Li , its cross-sectional area by Ai , modulus of Pn P1 elasticity by Ei , and the load applied to its right end by Pi , the magnitude Pi of this load being assumed to be positive if Pi is directed to the right and negative otherwise.
C2 Rod AB is horizontal with both ends fixed; it consists of n elements, each Element n Element 1 of which is homogeneous and of uniform cross section, and is subjected to A the loading shown. Note that reactions at A and B, the average normal stress in each element, and the deformation of each element. C3 uniform cross section. Compute for each element. C3 Continued Program Outputs Problem 2.
C4 Bar AB has a length L and is made of two different materials of given cross-sectional area, modulus of elasticity, and yield strength. C5 The plate has a hole centered across the width. By replacing the cone by n circular cylinders A solid truncated cone is subjected to an axial force P as shown.
Download PDF. Search inside document. Pt ression member Cross Sectionas area is Az 1. For the Pratt bridge truss end loading shown, determine the average normal stress in member BE, knowing that the cross-sectional area ofthat member is 8.
For the position shown. Note that rod is a two-force member; hence the direction 4 of Foree Fac is known. Boo DIMgs0 0. Each area. Use jot A os a tree bony. Ag tals 0. Gawrord 2 Fach qhve area must transit 10 kW oF shear Pood. Knowing that the ultimate shearing stress is MPa atall connections and that theultimate normal stessis MP in each ofthe two links joining B and D, determine the allowable load P if an overall factor of safety of 3.
Use ABC as Free body. Knowing thatthe ulate shearing stces is 24 ks forthe stel used inthe pins and that the ulimate normal stress is 60 si for the ste used inthe inks, determine the allowable load P ifan overall factor of safety of 32s desived, Note that the Hinks are not reinforced around the pin holes 1. Assuming that all other speciictions remain unchanged, determine the allowable load Pi an overall facto of safety of 3.
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