50 units 50 units A B C Which rivet is least likely to fracture first? a O A b O B C Ос d The rivets are equally likely to fracture.
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- SITUATION 1 For the figure shown, the diameter of holes is 20mm. Steel plate is made up of 10 mmw250mm wth staggered sections in the accompanying figure. Resistance tactbr for the yielcing limit state=0.9 Fy=248.8MPa, Fu=449.3M Pa Load Factors: DL=1.2, LL=1.6 Res istance factor for the fracture limit=0.75 1. Compute the netwidth for the plate in consideration for block shear. Use LRFD method a. A-B-E Path b. A-D-E Path c. A-C-D-E Path d. A-C-D Path 2. Compute the maximum design strength of the connection in relation to the answer in no.l 3. Compute the maximum value of service load T when A36 steel is usec, the live load us four times the dead loadA tensile specimen had a tensile strength of 67.819psi.The original gage length was 2 inches. Afterthe tensilepull, the gage length measured 2.75 inches. What is the96 elongation of the test speo men?C. Isohyetal Method?
- Back at Tinker Air Force Base, an aircraft seam requires 25 rivets during an MRO operation. Theseam will have to be reworked if any of these rivets is defective. Suppose rivets are defectiveindependently of one another, each with the same probability.a. If 20% of all seams need reworking, what is the probability that a rivet is defective?b. How small should the probability of a defective rivet be to ensure that only 10% of allseams need reworking?dont use cheggA wire 4m long is stretched horizontally between points A and B 4m apart. A load W placed at the center of the wire produces a sag of 53.4mm,a. If the wire is 25mm2in cross-section and the Young’s modulus is 200GPa, what is the magnitude of load W?b. If the load was reduced by 40%, what will be the sag?