1. The following is the true stress/true strain curve for a medium carbon steel. Based on...
manifactoring processes 1) Sketch Engineering stress vs. Engineering strain curve and True stress vs. true strain curve from one uniaxial tension test for an engineering metals that shows power law strain hardening (e.g. aluminum or steel), within the same plot, and identify, from the curves, the material property parameters of: Yield strength (0.2% offset) Uniform engineering strain ultimate tensile strength (eng.) true stress and true strain at the onset of necking K and n from power-law fitting (the range of...
1.Below are stress-strain curves for 5 steels. (a) annealed low carbon steel, (b) a steel alloy which has a DBTT of +50°C (c) 304 stainless steel (d) nearly pure coarse grained Fe Identify the modulus, yield stress, tensile strength, ductility, and toughness. Identify the amount of elastic strain at yield stress, tensile strength, point right before fracture, point right after fracture. 2000 -Low C steel, 1800 steel alloy, DBTT +50C 304 stainless pure Fe 1600 1400 1200 t 1000 800...
Q-1. You are testing a circular beam of two metals, 1045 steel and 2014-T6 aluminum, in a rotating-cantilever beam fatigue test. If you need to choose one of these metals so that you can essentially design a part made of that metal, and subject the part to a repetitive stress- amplitude without ever failing due to fatigue, which one would you choose (See the attached figure) 600 T-51-25 tanium alloy 500 00 Maximum 8 MP 300 Ductile Castro 200 700...
Problem 2. A specimen of medium-carbon steel having an initial diameter ofd, = 0.503 in was tested in tension using a gauge length,-2.0 in . The following data were obtained Elastic region Load (Ibf) 1000 2000 3000 4000 7000 8400 Plastic region Elongation (in) Load (bf 0.0004 0.0006 0.0010 0.0013 0.0023 0.0028 8800 9200 9100 13200 15200 17000 16400 14800 Area (in 0.1984 0.1978 0.1963 0.1924 0.1875 0.1563 0.1307 0.1077 (Use excel or MATLAB to compute stresses and strains, and...
Q-1. You are testing a circular beam of two metals, 1045 steel and 2014-T6 aluminum, in a rotating-cantilever beam fatigue test. If you need to choose one of these metals so that you can essentially design a part made of that metal, and subject the part to a repetitive stress-amplitude without ever failing due to fatigue, which one would you choose. (See the attached figure) Q-2. What is the fatigue strength for the 1045 steel alloy, if you expect to...