Integral with suffix notation and the Divergence Theorem?

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SUMMARY

The discussion focuses on solving an integral involving the divergence theorem, specifically the expression ∫(u_i (∂σ_ij)/(∂x_j)) dv. The user correctly identifies the application of the divergence theorem, stating that ∫(∇·F) dv = ∫(F·n) ds, and attempts to derive the solution using integration by parts. The final expression derived is ∫(u_i n_j σ_ij) ds - ∫( (∂u_i)/(∂x_j) σ_ij) dv. The user also inquires about formatting mathematical expressions in the forum.

PREREQUISITES
  • Understanding of the Divergence Theorem
  • Familiarity with vector calculus and integral notation
  • Knowledge of integration by parts in multivariable calculus
  • Basic skills in LaTeX for mathematical formatting
NEXT STEPS
  • Study the Divergence Theorem in detail, focusing on its applications in physics and engineering
  • Learn about integration by parts in the context of multiple integrals
  • Explore LaTeX formatting for mathematical expressions in online forums
  • Review examples of vector calculus problems involving divergence and curl
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Students and professionals in mathematics, physics, and engineering who are working with vector calculus and the divergence theorem, as well as anyone interested in formatting mathematical expressions in online discussions.

davcrai
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Homework Statement


Trying to figure out the following integral was done...

intv(ui(partial)d(sigmaij)/(partial)dxj)dv

Homework Equations


Divergence theorem intv(del.F)dv = ints(F.n)ds

The Attempt at a Solution



I have the correct ans from one of my lectures,

ints(uinjsigmaij)ds - intv((partial)d(ui)/(partial)dxj)sigmaij)dv

I think its done by integration by parts but can't seem to get it to work out.
Also how do people get math script in here??

Homework Statement


Homework Equations


The Attempt at a Solution

 
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you do [ tex ] (no spaces) to start and [ /tex ] (no spaces) to finish.
 

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