99) The deflection of a beam yox), satisfies the differential equation 26 d"y dx4 =W(x) on 0
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- -T Problem 2 (a) An infinite plate with a small hole of radius a is subjected to a r = a far-field biaxial loading of: T b- co Oxr = T, oyy = -T asr- o y (The arrows in the Figure indicate the positive directions.) -T Determine the stress field o,(r, 0), dgo(r, 0), ore(r, 0). For r = a, determine the angle 0 at which ogg is a maximum or minimum. What is the stress concentration factor at the location of maximum ogg ? (b) Repeat part (a) above if the far-field biaxial loading is: Oxx = T, oyy = T as r co r=a T T y T.The uniform 19.0 kg beam below is 6.4 m long and is perfectly balanced about a point 1.4 m from the left end. What is the mass of the block? (Hint: when calculating the torque due to the weight of the beam, consider all of its mass to be located at its center of mass.).
- Figure 12-35 Problem 18. •19 To crack a certain nut in a nutcracker, forces with magnitudes of at least 40 N must act on its shell from both sides. For the nutcracker of Fig. 12-36, with distances L = 12 cm and d = 2.6 cm, what are the force components F (perpendicular to the handles) corresponding to that. 27 40 54 N? 386 F L- 413 444 -d- 479 514 549 583 F 609 346 / 1368Can you use a slanted rope attached from the wall to the end of the beam if that rope breaks when the tension exceeds 170 N? The beam is light.Structural member AB is to be supported by a strut CD. Determine the smallest length CD may have, and specify where D must be located for a strut of this length to be used. Take x= 120 mm. 60 mm D. y 20 mm E The smallest length CD may have is mm. The coordinates of point Dare ( and Imm.