The difference between stress application and strain repose in for viscoelastic materials is known as phase lag.
please make sure it is correct The difference between stress application and strain repose in for...
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Choose the schematic which presents viscoelastic behavior. Load Strain ta Time ta Time (6) Strain Strain ta Time ta Time (d) OL Ob Om Oiva
The stress-strain diagram for elastic fibers that make up human skin and muscle is shown. Determine the modulus of elasticity of the fibers and estimate their modulus of toughness and modulus of resilience. O (MPa) 0.385 0.077 € (mm/mm) 1 2 2.25
1. Draw a schematic stress-strain diagram for steel. Make sure you mark all the important points and regions on it. Provide a one-two sentence explanation for each point and region along the diagram. 2. A cylindrical specimen of a nickel alloy having an elastic modulus of 207 GPa (30 x 10* psi) and an original diameter of 10.2 mm (0.40 In.) will experience only elastic deformation when a tensile load of 8900 N (2000 Ibe) is applied. Compute the maximum length...
i) What is the difference between true stress and engineering stress? Why do engineers not consider a test specimen's true stress? ii) Explain how a plot of stress versus strain is produced from force versus extension data iii) Looking at the diagram shown below 400 3 2 S 300 200 100 Metal 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 Strain a) What is the name of the 0 to 1 region in Metal A? b) With reference to...
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What are the phase present in a 1040 steel at 500 °C ? Composition Cat C 10 15 20 25 1600 11538 C 2493C 1400 2500 1394-C y 1200 11470 2.14 4.30 7. Austenite 2000 Temperature ("C) Temperature (°F) 1000 912 C y+ Fezc 800 1500 727 C y 0.76 600 0.022 a, Ferrite a Fejc Cementite Fez 1000 400 5 6 6.70 Fe 3 4 Composition to Ferrite OL Cementite O II Ferrite...
1. What is difference between plain carbon steel and cast iron in terms of composition and toughness? Illustrate the difference with the aid of an Fe-FesC eqilibrium phase diagram and stress strain diagram. 2. Perform the literature search and determine the composition and at least one application of the following ferrous alloys a. AISI4140 steel b. AISI 1045 steel с. А36 d. ASTM A312 steel e. ASTM 516 Grades 70 steel f D2 steel g. O1 steel h. AISI304 stainless...
Figure (a) shows the stress strain relations for two different materials, A and B. Between A and B, which one has higher strength? stress B strain Figure (a) O A. Material A OB. Material B Figure (a) shows the stress strain relations for two different materials, A and B. Figure (b) is a schematic of the catastrophic failure of a Liberty ship. Between A and B. which material could have been used in construction of the ship and caused this...
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Heating a low - medium carbon steel sample above its recrystallization temperature and while quenching the heated sample in brine solution would lead a microstructure with shapes. Cold-working leads to a grain structure O elongated, equi-axed oll needle like, elongated O coarse, pear latic OIV fine, pearlatic
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Different hardness measurement techniques utilize different techniques to quantify plastic deformation. While considered as a measure of plastic deformation to characterize the indentation in Vickers's test; Rockwell test uses Ou diagonal width O diameter diagonal diameter depth OIV diagonal, depth
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...