updated hw4 2024

Author: antantantant

_posts/teaching/mechdesign/2023-03-21-homework4.md

@@ -56,7 +56,7 @@ If infinite life is not predicted, estimate the number of cycles to failure.
 
 <img src="/_images/mechdesign/hw3_1.png" alt="Drawing" style="height: 400px;"/> 
 
-### Problem 4 (50 Points)
+### Problem 4 (50 Points + up to 100 bonus points)
 First, complete [this tutorial](https://courses.ansys.com/index.php/courses/plate-with-a-hole-optimization/lessons/problem-specification-lesson-1-30/) to get familiar with structure design in ANSYS. 
 For more explanations on ANSYS Optimization, please check [this tutorial](https://designinformaticslab.github.io/productdesign_tutorial/2016/11/20/ansys.html).