Hi all,(adsbygoogle = window.adsbygoogle || []).push({});

I have a very basic question regarding the topic of stress.While deriving the equations of equilibrium for a plane element,there is a concept called incremental stress.That is,if stress in the x direction for one face is σx the stress in the opposite face is σx + (δσx/δx)*dx. Where the partial derivative represents the rate of change of stress along the length of element and dx is the length of the element in x direction.

My question is, why is this considered in the first place ?

can anyone please explain this in the case where a bar is under uni axial tension ?

Does stress vary along the length of the bar at different cross sections?.I am having problems in understanding this topic and visualizing this.

I am learning this subject on my own.So I apologise if I have misstated something.

Thanks for going through the post.

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Stress gradient

Loading...

Similar Threads - Stress gradient | Date |
---|---|

Optimum shape for a pressurized structure in a pressure gradient | Jan 27, 2018 |

Defining Multi-Linear Isotropic Stress-Strain Curve Ansys WB | Jan 1, 2018 |

Stress on fabric under tension | Sep 20, 2017 |

Multiple Beer Capper | Feb 20, 2017 |

Difference between 'plastic yielding' & plastic strength? | Oct 18, 2016 |

**Physics Forums - The Fusion of Science and Community**