Variation of youngs modulus with temperature

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Discussion Overview

The discussion centers on whether Young's modulus of elasticity is influenced by temperature, exploring the relationship between atomic bonding and thermal expansion. The scope includes theoretical considerations and conceptual understanding of material properties.

Discussion Character

  • Exploratory, Conceptual clarification

Main Points Raised

  • One participant questions if Young's modulus depends on temperature.
  • Another participant affirms the dependency and provides a link for further information.
  • A subsequent participant expresses confusion, asking for clarification on the reasons behind this dependency.
  • Another response suggests that the force holding atoms in bonds decreases as bond lengths increase due to thermal expansion, which is proposed as a reason for the change in elastic modulus.

Areas of Agreement / Disagreement

There is no consensus reached; while some participants affirm the dependency of Young's modulus on temperature, others seek further explanation, indicating ongoing uncertainty and exploration of the topic.

Contextual Notes

The discussion does not address specific quantitative relationships or provide detailed definitions of terms, leaving some assumptions and dependencies unexamined.

Himal kharel
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Does youngs modulus of elasticity depend upon temperature?
 
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But why??
 
Himal kharel said:
But why??

Roughly, the force holding atoms together in bonds decreases as the bond length increases, which happens during thermal expansion. This force is the origin of the macro-scale elastic modulus.
 

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