# Crack beam under tension

Project file on GitLab

## Problem description

We solve a homogeneous beam model under a given displacement loading. The length of the beam is 2,mm. Detailed model description can refer this PDF.

## Results and evaluation

Results show crack Phase-Field and displacement field distributions through the length of the beam:

For highlighting the deviation between the analytical and numerical solution, we provide the absolute error of the analytical solution and numerical simulation as follows:

The analytical solution is: $$$$d (x) = 1 - {\mathrm{e}}^{\frac{- |x|}{2 \varepsilon}}$$$$ $$$$u (x) = \dfrac{\sigma}{E} \int_0^x \dfrac{1}{d (x)^2 + k} \mathrm{d}x$$$$ with $$$$\sigma = \dfrac{E u_0}{I (\varepsilon, k)}$$$$ $$I (\varepsilon, k) = \int_0^1 \dfrac{1}{d (x)^2 + k} \mathrm{d}x$$

This article was written by Xing-Yuan Miao. If you are missing something or you find an error please let us know. Generated with Hugo 0.79.0. Last revision: March 4, 2021