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Diffstat (limited to 'content/know/concept/navier-cauchy-equation/index.pdc')
| -rw-r--r-- | content/know/concept/navier-cauchy-equation/index.pdc | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/content/know/concept/navier-cauchy-equation/index.pdc b/content/know/concept/navier-cauchy-equation/index.pdc index d3802d3..a17d69d 100644 --- a/content/know/concept/navier-cauchy-equation/index.pdc +++ b/content/know/concept/navier-cauchy-equation/index.pdc @@ -72,7 +72,6 @@ we start by inserting Hooke's law into Newton's law: $$\begin{aligned} \rho \pdv[2]{u_i}{t} - %= f_i + \sum_{j} \nabla_j \sigma_{ij} &= f_i + 2 \mu \sum_{j} \nabla_j u_{ij} + \lambda \sum_{j} \nabla_j \bigg( \delta_{ij} \sum_{k} u_{kk} \bigg) \\ &= f_i + 2 \mu \sum_{j} \nabla_j u_{ij} + \lambda \nabla_i \sum_{j} u_{jj} |