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I think you are refering to the 'section modulus' which is a geometrical property of a cross section. it is the moment of inertia divided by the distance from the centroid or neutral axis to the farthest point of the section. this modulus measures flexural resistance.

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16y ago
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11y ago

It deals with one physical property sensed as elasticity.

Stress is the deforming force per unit area and strain is the proportionate change produced.

The ratio of the stress applied to the strian produced is defined as the modulus of elasticity.

There are three kinds

1. Linear-length wise

2. Bulk-volume wise

3. Shear- shape wise

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14y ago

This question is often inquired.
Young's modulus is one of modulus of elasticity in tension.
Young's modulus is important property to caluculate thermal expansion in horizontal direction of PCB.
It is difined as the proportional constant of Hooke's law(E=T/e)

  • E =T/e
  • E is Young's Modulus,
  • T is stress ,
  • e is stress

  • Flexural modulus is defined as three points of flexural test.
  • E = L3F/4bh3Y. E is flexural modulus,
  • L is distance of fulcrum to fulcrum,
  • b is sample width,
  • h is sample thickness,
  • F is load at linear part and Y is flexure at F.

  • Flexural strength is defined as three points of flexural test.
  • D = 3FL/2bh3. D is flexural strength,
  • F is maxmum load,
  • L is distance of fulcrum to fulcrum,
  • b is sample width
  • h is sample thickness.
  • The unit of Young's modulus, flexural modulus and flexural strength is MPa.
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11y ago

E/d=l2/6y

e- flexural modulus

d- flexure strength

l- length of specimen

y- flexure at force f

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Q: What is the difference between flexural modulus and elastic modulus?
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what is the flexural modulus value od mild steel


Is tensile modulus the same as young's modulus?

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