Calculating Stress in Joules: My Experience

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SUMMARY

The discussion centers on calculating stress in joules, clarifying the relationship between stress (measured in Nm-2) and energy (measured in joules, or Nm). Participants confirm that stress, defined as force per unit area, can be multiplied by volume to derive work or energy. This conversion illustrates the connection between mechanical stress and energy calculations, affirming that stress can indeed be expressed in terms of energy units.

PREREQUISITES
  • Understanding of stress and strain concepts in physics
  • Familiarity with units of measurement, specifically Nm and Nm-2
  • Basic knowledge of force, area, and volume relationships
  • Concept of work and energy in mechanical systems
NEXT STEPS
  • Research the derivation of stress and energy equations in physics
  • Learn about the implications of stress in material science
  • Explore the relationship between mechanical work and energy transfer
  • Study advanced topics in continuum mechanics
USEFUL FOR

Students of physics, engineers, and professionals in material science who are looking to deepen their understanding of stress and energy relationships in mechanical systems.

slingboi
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I have tried it and the units end up being Nm^-2 (the unit of stress) however the unit for joules is Nm.
 
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I have tried it and the units end up being Nm^-2 (the unit of stress) however the unit for joules is Nm

How do you work this out?


Strain is length/length ie dimensionless.

Stress is force/area. ie force/m2. Multiply this by volume (m3) and you get force time distance ie work (energy).

It does work out :biggrin:
 
Ohhh, thanks! i get it now!
 

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