A. Which parameters are used for passage from real multi-axial stress condition to one-axial experimental curve of plasticity?
Q: Which material/metal is the stiffest based on the following data provided and why?
A: Concept: 1) Stiffness is ability of material to resist deformation against applied load. 2) For the…
Q: a) Draw the stress strain curves for metals, polymers and ceramics?
A: Given Data⇒ Stress-strain curve for metal, polymers, and ceramics
Q: Why do the Ductile materials fail in shear?
A: Ductile materials are the materials which goes plastic deformation before the fracture. When any…
Q: Q1. Which one statement most accurately describes the relative strength and toughness for materials…
A:
Q: Describe the different methods for determining the allowable creep strengthfor a particular…
A: Creep is the tendency of the material to deform permanently under the influence of the persistent…
Q: Do ductile materials fail in shear?
A: The type of materials that undergo considerable plastic deformation before fracture are known as…
Q: What are factors that might account for deviations of experimental buckling loads from expected…
A: Buckling could be a sudden lateral disappointment of an axially stacked part in compression,…
Q: What are the distinguishing differences between elasticity, plasticity, and fracture?
A: There are the following differences between elasticity, plasticity and fracture. Elasticity:- It is…
Q: What is the trend of the best fit line for the total energy E in your data? If the data is accurate,…
A: Given question : What is the trend of the best fit line for the total energy E in your data? If the…
Q: Having stress-strain relationship of ductile materials in your mind, highlight the differences…
A: Design an element is said to have failed if it ceases to perform its function. There are basically…
Q: For a material when tested within the elastic limit, the value of Poisson's ratio is 035. When the…
A: Ans: (a) 0.35
Q: Define about the Selection of Shear Strength Parameters ?
A: Stability analysis of a rock slope requires an assessment of shear strength parameters, that is,…
Q: Explain ELASTIC STRAIN ENERGY FOR VARIOUS TYPES OF LOADING?
A: The energy stored in a body up to elastic limit under certain loading is called the elastic strain…
Q: Identify the material that has maximum stiffness value from the following stress- strain curves.
A: Higher the positive slope in stress-strain curve of a material implies higher the stiffness.
Q: I did a torsion test to experimentally calculate the brass modulus of rigidity. My experimental…
A: For determining the torsional properties of the material torsion test is performed. With the help of…
Q: give an example proving that most materials exhibit both ductile andbrittle behavior?
A: As the temperature of the material decreases the ductile material loses its ductility and brittles…
Q: Give some examples of Ductile materials?
A: Ductile material, Ductile material is one which has considerable plastic (permanent deformation)…
Q: How can the modulus of elasticity of the material be determined?
A: Elastic modulus(E) is constant for a given material .It is given by the ratio of stress and strain…
Q: Having stress-strain relationship of ductile materials in your mind, highlight the differences…
A: When an amount of repeated load act on an material then the factor of safety at the yield strength…
Q: If the moduli of rigidity and elasticity of a material are 15,000 ksi and 40,000 ksi, respectively,…
A:
Q: 11. List the conditions that can induce brittle failure even in a ductile material.
A: Conditions that can induce brittle failure even in a ductile material- 1. High Strength Material are…
Q: Distinguish between the Normal and Shear Stress Components?
A: Normal and shear stress components are distinguished by their direction with respect to the area on…
Q: Describe the theory of elasticity?
A: Theory of Elasticity When an external force is applied to the body, it starts to elongate, and as…
Q: cylindrical rod 500 mm long, having a diameter of 12.7 mm, is subjected to a tensile load of 30,000…
A: Given, L = 500 mm d = 12.7 mm P= 30,000 N
Q: a.) what happens to the yield strength of 250 maraging steel as the temperature increases? b.)…
A: (a) as the temperature increases the value of yield strength decreases.
Q: What are the considerations for Rockwell hardness?
A: Rockwell Hardness Test ⇒Makes use of a diamond indentor (pyramid shape) ⇒Used as brale…
Q: Distinguish between the Theory of Elasticity and the Theory of Plasticity?
A: Theory of elasticity: - Elasticity is the property of metal by which it regains its shape after…
Q: Define strength and toughness. What is the typical trend between these two material properties when…
A: Strength of a material is its ability to withstand an applied load upto plastic deformation, It is…
Q: The maximum principal strain failure criterion is appropriate for ceramic materials". Is this true…
A: As we know that Ceramic is a brittle material
Q: You have been given the following test sample data following mechanical testing of 15 test pieces of…
A: GIVEN: TO FIND:
Q: Draw a graph showing the elasticity, flexibility, and brittleness property in terms of stress and…
A:
Q: Define the term Elastic Curve?
A: when a beam is loaded, its central axis line becomes a curved line, this curved line is called…
Q: 7.) A cylindrical rod 100 mm long and having a diameter of 10.0 mm is to be deformed using a tensile…
A:
Q: How are Engineering stress and strain calculated?
A: Engineering stress is also known as the nominal stress, defined as the ratio of applied load to the…
Q: How is Equation used to determine the shear modulus of elasticity of a material?
A: It can be used to explain how a material resists transverse deformations but this is practical for…
Q: Identify the material that has maximum stiffness value from the following stress-strain curves.
A: Material A has higher stifness.
Q: Sketch the expected tensile stress versus strain curves for the following:
A: all the three curves are shown in the same stress train diagram so that comparison can be done.
Q: 2. If a sample has a high modulus of elasticity, will the material exhibit a high degree of…
A: Dear student, we are suppose to solve only one question. Please post other question as a separate…
Q: Describe the nature of the load and strength distributions in four practical engineering situations…
A:
Q: Where Expressions from the linear theory of elasticity are in use?
A: The linear theory of elasticity is one of the most successful theories which tries to describe the…
Q: Differentiate brittle and ductile materials in terms of degree of plastic deformation. What is…
A:
Q: Describe the relationship between stress and strain according to Hook's law?
A: The relationship between stress and strain according to Hook's law
Q: (c) What is the difference between Yield strength and Ultimate strength? Explain these terms with…
A: Difference between yeild strength and Ultimate strength
Q: Define the modulus of elasticity?
A: modulus of elasticity is a property of a material.
Q: Describe the behavior of tested materials (mild steel and aluminium) as it responds to increasing…
A: following is the answer to the above problem-
Q: What is the modulus of rigidity?
A: Modulus of rigidity
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- Given the following data: Follower type = roller follower, off-set to the right by 5mm; lift 30mm; base circle radius = 25mm; roller radius = 5mm; out stroke with SHM, for 120° cam rotation; dwell for 60° cam rotation; return stroke during 120° cam rotation; first half of return stroke with Uniform velocity and second half with UARM; dwell for the remaining period. %3D %3D The cam rotates at 250 rpm. Compute the maximum velocity in (mm/s) of the outstrokepleassssse solve question 6, staticsParameter Value Unit Remarks Inertia 36 tonne m? Damping 20 N-m.s Train mechanisms only Load Torque 117.720 kN-m A train has the effective total properties in the preceding table. It is desired to be able to completely stop the train from full speed in 15 seconds, while maintaining rated supply to the field. 1. Find the number of DC motors needed to run and decelerate the train without any motor being subjected to more than its rated capabilities. Assume uniform load distribution; identical machine models, terminal voltages, and controls. 2. Derive an expression for the armature current la(t) in each machine. 3. Derive an expression for the instantaneous terminal voltage Va(t) required for the controllers. 4. Due to practical limitations, it is often necessary to stop regenerative braking once one of the following occurs: zero-speed, zero Va(t), or zero la(t). Determine the angular speed (in rpm) at which this occurs.
- Simple FM problem ,Solve in 20-30min.Given the following data: Follower type = roller follower, off-set to the right by 5mm; lift = 30mm; base circle radius = 25mm; roller radius = 5mm; out stroke with SHM, for 120° cam rotation; dwell for 60° cam rotation; return stroke during 120° cam rotation; first half of return stroke with Uniform velocity and second half with UARM; dwell for the remaining period. %3D The cam rotates at 250 rpm. Compute for the maximum acceleration of the 1st half in (mm/s?) of the return stroke ||Q6. Gear and Motor selection: For a 50 Hz supply frequency, the motor speed is 50 revolutions per second. What gearbox is required to step this down to 2 rad s−1 at the pulley wheel? What is the maximum torque to be developed by the motor? Round off your answers to one decimal place. -The gear ratio required is ? - The maximum torque to be developed by the motor is Nm ?
- What is the relationship of mass of block and angle of response.What can be conclude on the given data in the table.hand written plz Q4(a) A 30 kW cooler machine runs at a speed of 4000 RPM One of the bearings is suspected with severe damage due to the high vibration. The bearing specifications: bearing diameter is 66 mm, ball diameter is 4 mm, number of balls is 15, and contact angle is 1 degree. Determine the following: (i) Ball passing frequency inner race; Ball passing frequency outer race; Ball passing frequency cage race: Bad misalignment. (iii) (iv)Draw a displacement diagram with the following details: Maximum displacement of 60 mm 60 mm rise from 0 degree to 45 degree using simple harmonic motion 60 mm fall from 45 degree to 90 degree using simple harmonic motion Dwell from 90 degree to 120 degree 60 mm rise from 120 degree to 210 degree using uniform acceleration and retardation motion Dwell 60 degrees Return stroke using cycloidal motion
- Draw the displacement diagram and profile of the cam operating a roller reciprocating follower and with the following data: Shaft diameter 10 mm; Minimum radius of cam 25mm; lift = 40mm; roller diameter=15mm. The cam lifts the follower for 120° with Simple Harmonic Motion (SHM) followed by a Dwell of 30° .Then follower lowers down during 150° of cam rotation with SHM followed by a Dwell period. If the cam rotates at a uniform speed of 100 RPM clockwise direction. Calculate the maximum velocity and acceleration during the ascent and descent period. Maximum Velocity and Acceleration During Ascent and DescentStarter is used to transmit initial mechanical power to the car engine and the analysis will be based on this initial power input. Starter power is 1 hp, rotates at 250 rpm and has 10 teeth. The crankshaft has 48 teeth and camshaft has 60 teeth. Determine torque delivered by the camshaft? If the timing belt has 10 teeth/in, find its speed in in/min?1. Use the following parameters for displacement diagram of a cam using the motions, Constant Velocity, Simple Harmonic Motion, and Constant Acceleration. Accent 60⁰ Descent 60⁰ Lift 6 cm 2. Design a cam turning counterclockwise, to give a reciprocating follower move vertically the following motion: rise of 8 cm. with a SHM motion during 150⁰ rotation of the cam; rest for 45° decelerate UARD motion during 120° rotation of the cam 2.1Use knife edge 2.2 Roller type follower, diameter of roller follower 2cm