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laws of Physics:
Defined Elements; In a role of playing;.. (2007) Energy and Power can be defined as one, as of 2007 Energy elements can be defined by Power. Thus Defining and creating it. Defined Power or; Created Energy can now help define Gravity thus creating a black hole, time warp, teleporation, nuke bomb capable of blowing up galaxy(ies)
we went from lights, communication, airwave signals, cordeless energy, ...
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Why stres is directly proportional to strain?
Yeah, according to the Hooke's law of elasticity,the stress is proportional to the strain within elastic limit that is Stress ∝ Strain or Stress/Strain = constant. [The constant of proportionality is called as "modulus of elasticity" or "coefficient of elasticity".]
What is strength coefficient?
Stress-strain power curve coefficient, K, numerically equal to the extrapolated value of true stress at a true strain of 1.00.
What is the formula of modulus of elasticity?
e=stress/strain
What is the ratio between stress and strain called?
Young's modulus
What states that within the limits of elasticity the stress is proportional to strain?
Young modulus
Details about stress strain curve?
stress strain curve details
Can stress exists without strain and vice versa. eg a heated bar held rigidly at both ends has no strain but there is stress?
Wherever there is stress there is strain. In the example you noted, if heated bar expands freely without one end constained it changes its strain without stress; that strain is called eigenstrain. If the same bar is held rigidly then the eigenstrain resisted and you get stress and strain. So stress cannot exist without strain; but strain can exist without stress if it is eigenstrain.
What is strain and stress?
stress is load per unit area; when an object is loaded it is under stress and strain and it stretches (strains) until it breaks at its ultimate strength. Stress i srelated to strain in the elastic region by Hooke's law: stress = elastic modulus times strain where modulus is a property of the material and strain is deflection over length
Is the ratio of stress-strain in the region below the proportional limit on the stress-strain curve?
stress is directly proportional to strain up to the proportional limit. Their ratio is young's modulus.
How do you calibrate strain gauges?
The strain gage indicates strain, and the stress is from Hooke's law; stress = modulus times strain so you need to know the modulus of elasticity
What is Secant Modulus?
The secant modulus is the total stress or strain on an object as described by a stress-strain graph. The tangent modulus is the marginal strain.
Which comes first either stress or strain in an object?
When you have stress you also have strain - stress cannot exist without strain, so they come at the same time You can have strain without stress - like expanding something under temperature in a free state. If the state is not free, then you have stress occurring at the same time.
Strain-stress diagram of copper and steel?
difference between Strain-stress diagram of copper and steel?
What is hysteresis loop in stress and strain?
the leading or lagging between the stress and strain is called hysteresis loop
Is defined as ratio of uniform stress to volume strain?
is defined as ratio of uniform stress to volume strain
Why stres is directly proportional to strain?
Yeah, according to the Hooke's law of elasticity,the stress is proportional to the strain within elastic limit that is Stress ∝ Strain or Stress/Strain = constant. [The constant of proportionality is called as "modulus of elasticity" or "coefficient of elasticity".]
Define thermal stress and thermal strain?
Thermal stress ( and strain) arrises at situations, when there are some area with diffrent temperature in the same body. Or at situatiom - one konstruction part restricts thermal expansion ( dilatation ) another part. Or - two parts (f.e. austenit - ferrit steels ) are in welded connection.
