You can create a calculated field similar to the following:
replace([Name], 'Á', 'a')
*Note: this function is not available with JET, however, an extract can be taken and it will be available.
Hope this helps!
Thanks Tracy. I'm just working with multiple accent marks in one word. When I use and if/elseif statement it only replaces one accent mark, but not the others. Tableau won't let me use an "and" between multiple replace functions.