MARTIN_JEFFREY_LAB8

Force P and length change AL data are given in table below for the initial portion of a tension test on 7075-T651 Al alloy. The diameter before testing was 9.07 mm., and the gage length Linitial for t length change measurement was 50.8 mm. What tension force is required to cause yielding in a bar of the same material but with a diameter of 20 mm? P, kN AL mm 7.22 0.0839 14.34 0.1636 21.06 26.8 31.7 34.1 35.0 0.241 0.308 0.380 0.484 0.614 36.0 0.924 36.5 1.279 36.9 37.2 1.622 1.994

The answer is one of the options below please solve carefully and circle the correct option Please write clear .

A cylindrical steel bar 8 mm in diameter is loaded 1000 cycles per day with a load of 15560 N.  How long until fatigue failure takes place?  Note: stress = force/area   Group of answer choices The bar should not fatigue. The bar will fail in one cycle. 100 days 1000 days

Read and Solve carefully please Write clearly and Box the Final answer Express your answer to 3 Significant figures and include appropriate units.

Test Specimen 4140 CF steel 6061 T6 Al Gray Cast iron 40 FC Brass 360 Impact Energy (J or ft-lb) 48.5 ft-lb 25 ft-lb 12 ft-lb 27 ft-lb Impact Strength (J/m or ft-lb/in) 123.096 ft-lb/in 63.452 ft-lb/in What is the final analysis/ overall observation from the data? 30.457 ft-lb/in 68.528 ft-lb/in

a=3 CVE 349 HOMEWORK 1 b=2.5 Q.1. d=3 P=12 27 9. a *Analyze the structure under given loading. *Design members 14,12,42,45,43,23,53 *Design joints 1,2,3,4 and 5. * Use parameters that are assigned to you. Those who use different parameters will be penalized and get 0. Units of a,b and c are meters and P is kN.

Problems 145 For the data below, find the slope and intercept relating two hardness scales for steel, the Brinell number and the Vickers number. Calculate the co th tion coefficient and comment on the applicability of the linear model for the ald data given. nBrinell Number Vickers Number 780 1,150 900ering 712 960

Part a

Part a and B please

Using the sample set of readings provided for Experiment 1 and taking the Young's Modulus of steel to be 200 GPa: • Calculate the measured buckling stress