(30 points) From the stress-strain chart for a unknown material determine thoe following 400 a) The...
Calculate the modulus of resilience for the material having the stress-strain behavior shown in the Animated Figure 6.12. Tensile strength 450 MPa (65,000 psi) Strain 0 Stress 0 MPA Stress 0 psi 500 70 Strain0 Stress 0 MPA Stress 0 psi 60 400 103 ps 50 MPa 40 Yield strength 250 MPa (36,000 psi) 300 40 0 200 30 200 30 20 100 20 10 100 10 0.10 0.20 0.30 0.40 Strain
5. EVALUATION I. Create a stress-strain diagram for the measured values in table 1 and identify the mechanical properties of the material. (4 marks) II. Identify the following and label them in the graph. (12 marks) • Young's modulus Yield strength Elongation Ultimate tensile strength THEORETICAL BACKGROUND Equations: Cross-sectional Area (A) Modulus of Elasticity (E) Tensile Strength (ST) Percent Elongation (%EL) d? E = Sy Ey Sr Pu А %EL Extension at fracture Gauge Length Where: A: Cross- Sectional Area...
Will rate if everything is complete. In the space below, sketch the generalized stress-strain behavior for a typical metal, such as annealed brass. On your sketch, clearly identify each of the metal, such as annealed brass. On your sketch, clearly identify each of the following. a. 0.2% offset yield strength b. Young's modulus c. Proportional limit d. Ultimate tensile strength Onset of localized plastic deformation е. f. Region of uniform plastic deformation g. Fracture strength h. Ductility i. Toughness Modulus...
Table 1: TENSILE TEST RESULTS OF A METAL SAMPLE with d= 7.42, lo = 40mm (4 marks) Load, KN Extension, mm Stress, MPa Strain 0 0 0 0 # 10 0.05 0.0002312 0.00125 17 0.08 0.0003931 0.002 4 25 0.11 0.0005781 0.00275 5 0.14 0.0006937 0.00350 30 34 0.20 0.005 37.5 0.40 0.01 0.0007862 8 0.0008672 2 0.0008903 5 0.0008325 3 38.5 0.60 0.015 36 0.90 0.0225 Cross-sectional Area (A) Modulus of Elasticity (E) Tensile Strength (ST) Percent Elongation (%EL)...
References Tensile strength 450 MPa (65,000 psi) Strain = 0 Stress = 0 MPA Stress = 0 psi 500 1 Strain = 0 Stress = 0 MPA Stress = 0 psi 103 psi 40 MPa 300 Yield strength 250 MPa (36,000 psi) 200 - 30 Stress (MPa) 2001 Stress (10 psi) 100% okuloobs 0.10 0.20 0.30 Strain References Brinell hardness number = 0 BHN Rockwell hardness = ... Rockwell hardness Tensile strength = 0 MPA Tensile strength = 0 ksi...
2) Using the stress-strain curve for a steel alloy shown in the following figure answer the following questions: 600 500 400 500 400 300 300 200 200 100 100 0.000 0.002 0.006 0.004 Strain 0.00 0,04 0.08 0.12 0.16 0.20 Using the same steel alloy, consider a cylindrical specimen 15 mm in diameter pulled in tension, if a load of 85,000 N is applied: h) Calculate the approximate ductility in percent elongation, (consider the final elongation as the elongation at...
Q1 (10 points): Consider the two stress-strain curves shown to the right. Based on each of these stress-strain curves, calculate or identify the following items: (a) • Modulus of elasticity Yield stress Yield strain Ultimate stress Ultimate strain Fracture stress Fracture strain • Ductility ratio Modulus of resilience Modulus of toughness u oo Stress (ksi) Straini 0.0012 0.0031 0.0039 0.0064 0.0079 O Note: If any of the values you need to identify or calculate are not explicitly clear from the...
σ(MPa) 400 The stress-strain diagram for a ductile material is shown at right. Determine approximately the modulus of elasticity E. 300 nd the yield stress σγ using the 0.2% offset strain method. If the shear modulus is known to be G 48GPa, compute 200- Poisson's ratio v. The test specimen for this material shown below is stretched with a force P 24kN. Find the resulting 100 hanges in dimensions of the specimen. 10 mm 0.004 0.008 0016 0 100 mm...
(c) Acylindrical specimen of stainless steel having a diameter of 12.8 mm and a gauge length of 50.800 mm is pulled in tension. The data acquired was used to plot engineering stress versus engineering strain as shown in the following two graphs (please note that fig. b is a blown-up clastic portion of (a)). Use the o-curves to complete parts through (vi) Stress (MP) 0.00 0.02 0.04 0.06 0.08 0.10 Strain Fig (a). - curve of stainless steel Stress (MPa)...
use matlab to plot 2-8 The stress-strain data from a tensile test on a cast-iron specimen are Engineering stress, kpsi 5 10 16 19 54 26 32 40 46 49 Engineering strain. | 103in/in 0.20 0.44 0.80 1.0 1.5 5.0 2,0 2,8 3.4 4.0 Plot the stress-strain locus and find the 0.1 percent offset yield strength, and the tangent modulus of elasticity at zero stress and at 20 kpsi 2-8 The stress-strain data from a tensile test on a cast-iron...