i have a thin walled rectangular box container that holds loosely packed dry sand. my question is "what is the pressure loading on the side walls?" i know that if the container holds water, then i can apply the pressure load using "function of coordinates" and the equation pressure = rho x g x h where rho is the density of water, g is the gravity constant, and h is the water depth. but what about sand? to simplify the equation, my four side walls are vertical. thanks in advance for any ideas. This thread is inactive and closed by the PTC Community Management Team. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. You may also use "Start a topic" button to ask a new question. Please be sure to include what version of the PTC product you are using so another community member knowledgeable about your version may be able to assist.