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Yes, it is.
Moment of resistance, usually denoted as W is a term in structural engineering. It is found from the moment of inertia I and the distance from the outside of the object concerned to its major axis e. W = I/e
It is used in structural calculations since the stress can be written as stress=moment/W
Section modulus (Rigidity) : The ratio of moment of Inertia of the section (I) to the distance from it neutral axis to the most remote fiber (c)
I am not an engineer and I never studied any of this properly, but as far as I can see, it's two names for the same thing.
I was able to calculate successfully the moment of resistance from the (moment of inertia) / (distance from the outside of the section (on the same x/y axis) to the center)
which means I must be getting it right.
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∙ 11y ago
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When is a beam said to be in uniform strength?
Bending moment is the same throughout the beam.
What is moment of inertia and its importance in civil engineering?
The moment of inertia (writen I, with an indice indicating the axis in which it is expressed) mesures the opposition any kind of body will have against a certain momentum (along that same axis) trying to rotate that body
Is terrace farming and terrace cultivation are same?
Yes they are same
Is the characteristic strength of a concrete the same as the compressive strength?
Yes, the characterisrtic strength of a concrete is the same as the compressive strength
Is Brick veneer is the same as solid brick?
YES
Is ultimate flexural strength and moment of resistance the same in a reinforced section?
No the moment of resistance is a defining parameter that can be used to calculate the stress in a cross section of a given material that is subject to flexural loading. The ultimate flexural strength is a numerical value of stress at which the material will crack, tear, rip etc. Think about ultimate tensile strength and the value of Young's Modulus. Young's Modulus is not defined at the point of 'necking' and therefore the ultimate tensile strength cannot be computed from Young's Modulus and Hook's Law, but the UTS is an empirically defined value.
What is the importance of section modulus?
Sectional modulus of any section determines the strength of a section, i.e. if two sections made up of same material then the section with higher section moduls will carry higher load as the allowable stress is constant for a given material. in analysis of it is useful in determining the maximum stress value to which the section is subjected when the moment is konwn from the relation f=(M/Z) where f= stress at extreem fibre M= maximum bending moment on section Z= section modulus = (moment of inertia/ distance of extreem fibre from NA)
Is flexural modulus the same as bending stiffness?
It is related. Flexural modulus is the modulus of elasticity (E) in bending and the higher it is the higher the bending stiffness. Technically, bending stiffness is the product of the flexural modulus and the material bending moment of inertia, I, that is EI.
What will be the young's modulus if i use two wires both made of copper but they are different in length and diameter?
Young's modulus or modulus of elasticity is a property of the material. As in both the wires we have copper material the young's modulus will be the same. It does not get altered with length or area of cross section.
How does a wire's cross section affect resistance?
If two pieces of wire are made of the same material and have the same length but different resistance, then the one with the greater cross section area has the lower resistance.
Will the results of the deflection will be the same if the material is differently?
Different materials give different deflections depending on a number of properties. The main properties that effect deflection are the youngs modulus, size/shape of the section (2nd moment of area), elastic modulus. All materials have different properties and values for the things mentioned above. So some materials will be able to deflect more than others.
Is tensile modulus the same as young's modulus?
Yes, indeed. Sometimes tensile modulus is different from flexural modulus, especially for composites. But tensile modulus and elastic modulus and Young's modulus are equivalent terms.
What is the difference between Youngs modulus and the modulus of elasticity?
Young's Modulus (modulus of elasticity) describes the stress-strain behavior of a material under monotonic loading. The dynamic modulus of elasticity describes the same behavior under cyclic or vibratory loading.
What is the types of modulus of elasticity?
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
Can copper and alluminium wire of same length and diameter have same resistance?
For a single temperature, yes. The copper wire will have a much smaller cross-section than the iron wire. For multiple temperatures, no. Copper and iron have different temperature coefficients for resistivity.
What are the two factors on which the resistance of a cylindrical conductors depends?
For conductor the resistance (R) is directly proportional to the length (L) of the conductor, and the area of cross-section (A). When you stretch the conductor to increase its length, its area of cross-section will decrease. The decrease in area of cross-section can be found in the following way: The volume of the cylinder will remain same. The initial volume of the cylinder is = A Х L Suppose, the area of cross-section becomes A/ and the resistance becomes R/. Hence, the resistance increases 4 times. Hope this helps you, Keep posting and have a nice day!
Does a thin wire has more RESISTIVITy or a thin wire of the same material?
Resistivity is a property of the material only, not of the dimensions of the wire. The resistance of a wire is the resistivity times the length divided by the cross-section area. So a long wire has more resistance, a thicker wire has less resistance, even if they are both made of copper with the same resistivity.
