IN MACHINE design modulus of elasticity place an important role. from the value of modolus of elasticity we come to know about maximum value of load that can be to the given material upto which the material is assume to follow the hook's law.
how springy or rigid something is, the higher the modulus of elasticity the more rigid it is
modulus of elasticity = 15 Msi; poisson ratio = 0.3 modulus of rigidity = E/ ((2(1 + poisson)) = 5.8 Msi
mujhe b nae pata
7,4*1010 N/m2
The Weibull Modulus is related to the distribution of flaws in a brittle specimen. It is important to note that it isn't relate to the size of the flaws. To find the Weibull Modulus, many samples of the same material are tested, in tension, to failure. If the flaws are evenly distributed throughout the specimen, the data from the the tests will show little statistical scatter and result in a high value of the Weibull Modulus. Conversely, if the flaws are unevenly distributed causing the test data to differ greatly from sample to sample (greater flaws means more opportunities for stress concentrations at those flaws, causing a lower failure stresses) then there will be large statistical scatter in the test data, and the Weibull Modulus will be measured as a lower number.
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there are different types of modulus it depends on what types of stress is acting on the material if its direct stress then then there is modulus of elasticity,if tis shear stress then its modulus of rigidity and when its volumetric stress it is bulk modulus and so on
It is around 40 GPa.
modulus of elasticity = 15 Msi; poisson ratio = 0.3 modulus of rigidity = E/ ((2(1 + poisson)) = 5.8 Msi
For isotropic materials G = E/ (2(1+u) where u = poisson ratio
modulus of elasticity, E, relates tension stress, s, to strain,e (s = Ee) modulus of rigidity, G, relates shear stress, t, to angular strain, g (t = Gg) modulus of rigidity G is related to E as G = E/2(1+u) whree u = poisson ratio
We knew from Hook's law- "stress is proportional to strain." So, stress = k * strain [here, k is a constant] or, stress/strain= k Now, if the stress and strain occurs due to axial force then k is known as modulus of elasticity and it is denoted by E. if the stress and strain occurs due to shear force then k is known as modulus of rigidity and it is denoted by G.
When we talk about deformatation, we are referring to two properties, namely Elasticity and Plasticity. These properties are measured using constants known as " Moduli of Elasticity". There are 4 such moduli: Young's Modulus Axial Modulus Rigidity Modulus Bulk Modulus The larger the value of the Bulk Modulus, the harder it is to compress the material.
1. Young's modulus of elasticity, E, also called elastic modulus in tension 2. Flexural modulus, usually the same as the elastic modulus for uniform isotropic materials 3. Shear modulus, also known as modulus of rigidity, G ; G = E/2/(1 + u) for isotropic materials, where u = poisson ratio 4. Dynamic modulus 5. Storage modulus 6. Bulk modulus The first three are most commonly used; the last three are for more specialized use
Young's modulus
the dimensions of Young's Modulus of Elasticity = (M).(L)^(-1).(T)^(-2)
Flexural Rigidity/strength and sectional modulus
Young's modulus