1) in strain hardening the body is plastically deformed and there is an increase in density...
1) in strain hardening the body is plastically deformed and there is an increase in density
TRUE OR FALSE
2)Tests which are appropriate measure for measuring the mechanical behavior of ceramics
a)shearing test
b)compressive test
c)tensile test
d) bending test
3) which of the following type of a material aramid fibers?
a) metal
b) polymers
c) cermics
d)glass
Homework Answers
1) True
2) Bending test and knoop tests are done on ceramics for their mechanical behavior
3) Polymers are a type of aramud fibres.
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1) in strain hardening the body is plastically deformed and
there is an increase in density...
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QUESTION 1 A semi-crystalline nylon with a degree of crystallinity of 25% has a density of 1.5 g/cm^3. Nylon has a crystalline density of 1.8 g/cm^3. What is its amorphous density in grams per centi...
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Please provide me clear handwriting Table 1: TENSILE TEST RESULTS OF A METAL SAMPLE with d...
Please provide me clear handwriting
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 10 0.05 17 0.08 25 0.11 30 0.14 34 0.20 37.5 0.40 38.5 0.60 36 0.90 Cross-sectional Area (A) Modulus of Elasticity (E) Tensile Strength (ST) Percent Elongation (%EL) A = T d2 4 E = Sy Ey ST = PU A %EL = Extension at fracture Gauge...
R Engineenng eratures in the rim by around 313 K compared with earlier piston designs. The piston...
We were unable to transcribe this imager Engineenng eratures in the rim by around 313 K compared with earlier piston designs. The piston's steel skirt is much more rigid than the aluminum skirt in smaller deformation and allowing for designs with tighter clearances tin harmful exhaust emissions) from the piston. This design has been shown to reduce piston termn results in a more stable piston with less oil consumption (thus further r which are machined prior to welding. The process...
please help asap and please show all work. thank you! table 1 data for 7075-T6 below...
please help asap and please show all work. thank you!
table 1 data for 7075-T6 below
table 2 data for 7075-T6 below
i
added the tables. they correspond within the pictures
2) Using data from Table A.1 and A.2, for Aluminum 7075-T6, for given a stress amplitude d+460 MPa a. What are the ELASTIC strain amplitude and the PLASTIC strain amplitude? b. What is the TOTAL strain amplitude? c. Draw accurately to scale, the o-e hysteresis loop for this load...
Brief Background Penetration hardness is a measure of a materials resistance to indentation. The Rockwell Hardness...
Brief Background Penetration hardness is a measure of a materials resistance to indentation. The Rockwell Hardness test is a standard method for characterizing this property of a material. It uses a small indenter, either a hardened ball or diamond cone (Brale), which is pressed into the sample while measuring depth of penetration. There are several scales to select from as indicated in textbook or the chart found in lab. Each scale refers to the type of indenter used and the...
Ur thhe spécific for shear, u, and the specific heat of the material. Hence, temperature risc ene...
ur thhe spécific for shear, u, and the specific heat of the material. Hence, temperature risc ene machining materials with high strengt cates. The temperature rise at the tool-chip interface is, of course, also a fiu cocfficient of friction. Flank wear (see Section 8.3 and Fig. 8.20a) isction of source of heat, caused by rubbing of the tool on the machined surface. those of the workpiece. generated in the shear plane is a functioll UI material. Hence, temperature rise is...
5. Explain why the stress-strain behaviors of metals measured in a tensile test cannot fully describe true stress-strain behaviors of materials. 6. Why the three point bending test is used to measure the mechanical properties of ceramics? Will the mechanical properties of ceramics be geometry dependent? 7. What is the crystallinity of polymer materials? How this structure gives rise to the unique mechanical properties of polymers? 8. For fibre-reinforced composites, will the material get totally failure after the fracture strain...
Q21. Which one of the following statements about the ductility of metals is TRUE? A High ductility occurs in brittle materials B Ductility is the amount of deformation at the 0.2% proof stress C Ductility can be measured as % reduction in area from broken tensile samples D Ductility is deformation in the elastic region E Ductility is the change between upper and lower yield point in steels Q22. Which one of the following statements is TRUE about Charpy impact...
Assignment 01 TOT Mechanical Properties of Materials 1. A tensile test specimen has a gage length = 50 mm and its cross-sectional area = 100 mm. The specimen yields at 48,000 N, and the corresponding gage length - 50.23 mm. This is the 0.2 ent yield point. The maximum load of 87,000 N is reached at a gage length 64.2 mm. Determine (a) yield strength, (b) modulus of elasticity, and (c) tensile strength. (d) If fracture occurs at a gage...
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...
Please provide me clear handwriting
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 10 0.05 17 0.08 25 0.11 30 0.14 34 0.20 37.5 0.40 38.5 0.60 36 0.90 Cross-sectional Area (A) Modulus of Elasticity (E) Tensile Strength (ST) Percent Elongation (%EL) A = T d2 4 E = Sy Ey ST = PU A %EL = Extension at fracture Gauge...
We were unable to transcribe this imager Engineenng eratures in the rim by around 313 K compared with earlier piston designs. The piston's steel skirt is much more rigid than the aluminum skirt in smaller deformation and allowing for designs with tighter clearances tin harmful exhaust emissions) from the piston. This design has been shown to reduce piston termn results in a more stable piston with less oil consumption (thus further r which are machined prior to welding. The process...
please help asap and please show all work. thank you!
table 1 data for 7075-T6 below
table 2 data for 7075-T6 below
i
added the tables. they correspond within the pictures
2) Using data from Table A.1 and A.2, for Aluminum 7075-T6, for given a stress amplitude d+460 MPa a. What are the ELASTIC strain amplitude and the PLASTIC strain amplitude? b. What is the TOTAL strain amplitude? c. Draw accurately to scale, the o-e hysteresis loop for this load...
Brief Background Penetration hardness is a measure of a materials resistance to indentation. The Rockwell Hardness test is a standard method for characterizing this property of a material. It uses a small indenter, either a hardened ball or diamond cone (Brale), which is pressed into the sample while measuring depth of penetration. There are several scales to select from as indicated in textbook or the chart found in lab. Each scale refers to the type of indenter used and the...
ur thhe spécific for shear, u, and the specific heat of the material. Hence, temperature risc ene machining materials with high strengt cates. The temperature rise at the tool-chip interface is, of course, also a fiu cocfficient of friction. Flank wear (see Section 8.3 and Fig. 8.20a) isction of source of heat, caused by rubbing of the tool on the machined surface. those of the workpiece. generated in the shear plane is a functioll UI material. Hence, temperature rise is...
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