The standard for testing of materials provides information about material testing and properties obtained from the material. , Select one: True False
Q: (c) A tensile test uses a copper test specimen that has a gauge length of 80 mm and a di.ameter of…
A: Given that, Gauge length=80 mmDiameter of length, D=16 mm,When load on specimen, P=9600 N,Gauge…
Q: Question 1: Elastic behaviour Rank the curves based on the elastic modulus of the materials…
A:
Q: a)Define the following mechanical properties which can be derived and, in each case, state the…
A: The definitions of the mechanical property are, Engineering stress: The engineering stress is…
Q: Three identical fatigue specimen ( denoted A ,B and C ) are fabricated from none ferrous alloy .Each…
A: Given: Specimen max. stress(MPa) min. stress(MPa) A +450 -150 B +300 -300 C +500 -200
Q: Carbonitriding is a case-hardening process in which a steel is heated in a gaseous atmosphere of…
A: 1) true 2) true
Q: A) Steel Alloy rod made of Stainless Steel 304 is subjected to 60 kip of Tensile force. Steel rod is…
A: Dear student, as per the guidelines, we are suppose to solve only one question. Please post other…
Q: Materials creep significantly in extremely cold weather True or false
A:
Q: For Isotropic materials, the properties are same in all directions. Select one: .True .False
A:
Q: Which of the following statements about the uniaxial stress-strain behavior of polymers true (a) The…
A: Que: Which of the following statements about the uniaxial stress-strain behavior of polymers is true…
Q: 11) 1.Recrystallization is followed by decrease in ductility. Select one: True False
A:
Q: Non Ferrous Metals possess High Electrical insulation properties? Select one: True False
A: Given: Non Ferrous Metals possess High Electrical insulation properties?
Q: As temperature decreases a ductile material can become brittle - ductile-to- brittle transition…
A: Solution:
Q: Q1: Choose the correct answer for the following questions: 6_fracture stress (a) is proportional to…
A: CHOOSE THE CORRECT ANSWERS :- 6)Fracture stress is proportional to :......................7)Rapture…
Q: What are the values of each variable? Show complete solution
A:
Q: A grain size of 10, according to ASTM, indicates that the metal or alloy has good resistance to…
A:
Q: Explain the reason for the pre-load applied in the procedure for the Rockwell test.
A:
Q: The ability of a material that undergoes some degree of permanent deformation without failure is…
A: False.
Q: Hardness is a very important thermal property that can be measured by the Vickers's hardness test…
A: Hardness is defined as the resistance to indentation. One of the methods used to measure hardness is…
Q: Tension is the common test for determining the strength-deformation characteristics using a. bending…
A: Tension test or tensile test is done on an specimen to determine the ultimate tensile strength,…
Q: The standard for materials provides the composition and properties of materials. Select one: True…
A: Material standards are blends of execution and prescriptive components. Execution components are…
Q: 1) Material properties labelled A, B, C and D 2) How do you detemine the material's Young's modulus?…
A: Q1 - A- Proportional Limit B- Elastic Limit C- Ultimate Stress D- Fracture point Q2- Young's Modulus…
Q: In tensile test a plain carbon steel specimen has a (40mm) gauge length and the Final area (A final)…
A: The initial area of the specimen: Option (b) : 313.994 mm2
Q: The resistance of a material to deflection is called
A: Answer (d) Rigidity is correct option.
Q: а) Draw conclusions from the following diagram? 120 100 Tensile strength (ksi) (•) 80 60 Grain size…
A: The graph is given to drawn the conclusion.
Q: The ability of a material that undergoes some degree of permanent deformation without failure is…
A: Plasticity is permanent deformation without failure..
Q: For Isotropic materials, the properties are same in all directions. Select one: True False
A: Isotropic materials are kind of materials whose properties like thermal conductivity n all doesn't…
Q: (a) Two different materials designated A, and B, are tested in tension using test specimens having…
A:
Q: For engineering point of view, the mechanical properties would allow to predict the ability of a…
A: Answer 1: Mechanical property of any material is very important to determine the capacity of load…
Q: 10)Which of the following statement is true for plastic deformation? i. Plastic deformation is a…
A: Given :- Statement about plastic deformation Statement i:- Plastic deformation is a function of…
Q: State your answers to the following questions. Strain Gauge represents the deformation of a material…
A: Explanation Strain gauges works on the principle that the change in dimensions of the material…
Q: The rate of cooling of metal after heating plays crucial part in heat treatment process. Select one:…
A: answer = true, The rate of cooling of metal after heating plays a crucial part in the heat-treatment…
Q: Yield strength, ultimate tensile strength, linear coefficient of thermal expansion, modulus of…
A: 1) true 2) true 3) false 4) false
Q: Luestion One In a tensile test, material mechanical properties are determined by relating…
A: Solution is attached below:
Q: Load (N) Al (mm) 0.0000 0.0296 0.0592 5,000 10,000 15,000 20,000 25,000 26,500 27,000 26,500 25,000…
A:
Q: The standard for testing of materials provides information about material testing and properties…
A: Let us discuss about standard for testing of matetial
Q: Which of the following describes the phenomenon of material failure? O Unstable crack growth Flutter
A: I think its answer should be first part unstable crack growth.
Q: Structural steel is a brittle material, which means that it cannot undergo large amount of plastic…
A: Structural steel: Steels are the alloys of the iron and carbon majorly, but there are other elements…
Q: Shipyard workers are attempting to build nuclear submarines. A) What factors might lead to the…
A: A nuclear submarine is one that is powered by a nuclear reactor but does not have nuclear weapons.…
Q: The standard for testing of materials provides information about material testing and properties…
A:
Q: Fracture toughness, K, measures the resistance of materials to brittle fracture when cracks are…
A: Please refer to the below explanation
Q: Ductile materials have more impact strength compared to brittle materials. Select one: True False
A: Ductile materials have more impact strength compared to brittle materials:
Q: (a) The most common test to determine a material's mechanical properties is a tensile test. The…
A:
Q: A hammer of mass 5 kg is released in the impact testing machine from the height 1.5 m. After it…
A:
Q: brittle material will not yield at all, when it is subjected to external loading Select one: True…
A: It is required to evaluate given statement
Q: Define the given terms related to mechanical properties of materials. 1. Nanoindentation 2.…
A: Nanoindentation:- it is a technique developed in the mid -70s of the last century to measure the…
Q: 8) 2.Recrystallization is followed by decrease in strength and hardness. Select one: True False
A: Recrystallisation: It is a process in which the deformed grains are replaced by a new set of grains…
Q: As temperature decreases a ductile material can become brittle - ductile-to- brittle transition…
A: the given statement is true.
Q: Young's modulus is a very important mechanical property that can be directly measured by Vickers's…
A: Dear student, According to the guidelines I am allowed to answer only one…
Q: Sine bar of length 190.5 mm, slip gauge and dial test indicator is employed for the precise angle…
A: height = 12.4979 mm
Step by step
Solved in 2 steps
- Figure 1 shows the tensile testing results for different materials. All specimens have an initial diameter of 12 mm and an initial gauge length of 50 mm. 300 250 Low carbon steel Network polymer 200 Crystalline polymer 150 Amorphous polymer 100 50 5 10 15 20 25 30 Strain (%) Figure 1: Stress-strain curve b. Determine the following parameters for each material: • the tensile strength the 0.2% offset yield strength the modulus of elasticity • the ductility Stress (MPa) LO(b) 2000 light bulbs were tested by the manufacturer. After 500 hours of testing, it was found that 5 out of all the light bulbs subjected to testing have failed. Strict quality control has been implemented to eliminate premature failures. Assume the light bulb has a constant failure rate. What is the failure rate, Mean Time Before Failure (MTBF) and the reliability of the light bulb after 500 hours? l vang1 The cross-sectional area and gauge length of a tensile test specimen are both equal to 60 mm². The specimen yields at 35000 N, with a gauge length of 78.40 mm being the appropriate value. This is the yield point of 0.8%. At a gauge length of 64.2 mm, a load of 50000 N is the highest that can be applied. Determine the following, a) Yield strength, b) Modulus of elasticity, and c) Tensile strength. d) If fracture occurs at a gage length of 80 mm, determine the percent elongation. e) If the specimen necked to an area = 55 mm², determine the percent reduction in area.
- Fracture toughness, K, measures the resistance of materials to brittle fracture when cracks are present True FalseConsider the graph below for 3 test samples A, B and C of the same metal composition which have been cold-worked, but to different extents. If you had to sort the samples by the degree of cold-working they have undergone, how would you rank them? Stress (MPa) 600 500 400 300 200 100 05 0 Select one: O a. AConsider the graph below for 3 test samples A, B and C of the same metal composition which have been cold-worked, but to different extents. If you had to sort the samples by the degree of cold-working they have undergone, how would you rank them? Stress (MPa) 600 500 400 300 200 100 Select one: A B 0.05 0.1 a. CSelect All the correct statements from below. a. If the averaged distance between partial dislocations for material A observed under TEM is smaller than material B, the estimated stacking fault energy of material A is lower than material B. b. K_IC is a material property that doesn't change with testing conditions c. The main difference between high cycle fatigue and low cycle fatigue is the difference in the number of cycles to failure d. A negative R value in fatigue test indicate the minimum stress is compressive in natureMatch the following statements with the term that best describes each statement. (Enter Number ONLY) 1) Hooke's Law 2) Creep 3) Impact Strength 4) Proportional Limit 5) Fatigue 6) Elastic The tendency of a solid material to move slowly or deform permanently under the influence of mechanical stresses below the yield strength of the material. The behavior of materials that deform when loaded but return to their original shape after the load is removed. The linear relationship between stress and strain in the elastic region below the proportional limit. The phenomenon where cracks propagate under loads less than the yield stress due to cyclic loading. The material property determined using the Charpy or Izod test. The point at which the stress vs strain becomes non-linear in an elastic material,The following are the given information of the test specimen material: Specimen Material Specimen Width (mm) Specimen Thickness (mm) Specimen Initial Length (mm) Specimen Final Length (mm) aluminium 1.5 13.5 42.4 47.5 Grip Separation 50 mm Total Elongation of the specimen is given by Elongation = i-io/io x 100 l : Final length, in m l0 : Initial length, in m25000 bolts are going to be used to fix a certain structure. The bolts have a mean fatigue life of 10000 days with a standard deviation of 2000 days under heavy dynamic loading conditions.What is the probability that a bolt will fail between 8250 and 12500 days of use?What is the maximum load that can be applied in our Universal Testing Machine located in Engineering Materials lab? Select one: 40 kN 10 kN 20 kN 30 kNThe following information is available for Edgar Corporation’s Material X. Annual Usage 12,600 units Working days per year 360 days Normal lead time 20 days The units of Material X are required evenly throughout the year. What is the reorder points? Assuming that occasionally, the company experiences delay in the delivery of Material X, such that the lead time reaches a maximum of 30 days, how many units of safety stocks should the company maintain and what is the reorder point? Show computation.SEE MORE QUESTIONSRecommended textbooks for youElements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill EducationControl Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEYElements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill EducationControl Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY