Knowing that the hole has a diameter of 9 mm, determine (a) the radius rf of the fillets for which the same maximum stress occurs at the hole A and at the fillets, (b) the corresponding maximum allowable load P if the allowable stress is 100 MPa. 9 mm 9 mm 96 mm 60 mm 9 mm

An annular washer distributes the load P applied to a steel rod to a timber support. The rod's diameter is 22 mm, and the washer's inner diameter is 25 mm, which is larger than the hole's permissible outer diameter. Knowing that the axial normal stress in the steel rod is 35 MPa and the average bearing stress between the washer and the timber must not exceed 5 MPa, examine the smallest allowed outer diameter, d, of the washer. %3D %3D +22 mm P Figure 4

Knowing that the magnitude of the horizontal force P is 8 kN, determine the normal stress at point A. 30 mm 24 mm 45 mm 15 mm 80.6 MPa O 102.8 MPa O 80.6 MPa O - 102.8 MPa O None of the options

Two wooden planks, each 1212 in. thick and 9 in. wide, are joined by the dry mortise joint shown. Knowing that the wood used shears off along its grain when the average shearing stress reaches 1.8 ksi, determine the magnitude P of the axial load that will cause the joint to fail.    The magnitude P of the axial load that will cause the joint to fail is  kips.