The field of strength of materials, also called mechanics of materials, typically refers to various methods of calculating the stresses and strains in structural members, such as beams, columns, and shafts. The methods employed to predict the response of a structure under loading and its susceptibility to various failure modes takes into account the properties of the materials such as its yield strength, ultimate strength, Young's modulus, and Poisson's ratio. In addition, the mechanical element's macroscopic properties (geometric properties) such as its length, width, thickness, boundary constraints and abrupt changes in geometry such as holes are considered.
The theory began with the consideration of the behavior of one and two dimensional members of structures, whose states of stress can be approximated as two dimensional, and was then generalized to three dimensions to develop a more complete theory of the elastic and plastic behavior of materials. An important founding pioneer in mechanics of materials was
That part of the material which is not affected by either stress is the neutral line or axis.
<h3>What is the technique known as whilst you bend steel?</h3>
Sheet Metal Bending – Methods, Design Tips & K Factor. Bending is one of the maximum not unusual place sheet steel fabrication operations. Also referred to as press braking, flanging, die bending, folding and edging, this technique is used to deform a cloth to an angular shape. This is finished thru the utility of pressure on a workpiece.
The neutral axis is in which neither the fabric stretches nor is compressed. Hence, the duration of the nuetral axis lives the identical earlier than and after the bending operation.
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Answer: a) The technology that deals with the generation, control and transmission of power using pressurized fluids
Explanation: Fluid power is defined as the fluids which are under pressure and then are used for generation,control and transmit the power. Fluid power systems produces high forces as well as power in small amount . These systems usually tend to have better life if maintained properly. The force that are applied on this system can be monitored by gauges as well as meter.
Answer:
Fermi energy is the highest energy occupied by an electron at absolute zero degree Kelvin (0K).
Explanation:
i) Fermi energy function, E - Ef = h²/2mo{3π²N/V} (where, N = number of particle; h = Planck constant; V = Volume of the system; mo = mass of each electron)
ii) Let 4% probability state = Kβ = 0.04
∴ To calculate Fermi temperature = Ef/Kβ = 0.3eV/0.04 =7.5°C
But in degree Kelvin = (273 + 7.5)K = 280.5K