Hi, I am familiar with (1:1) the aspect ratio with square plate elements, and also the acceptable ratio up to 1:4. Can anyone tell me what is the preferred aspect ratio (length-to-thickness) of plate elements and solid elements in STAAD? Is there any boundary related to 1:10?Now, I'm modeling a 2.5m thick slab with 0.5mx0.5m mesh size plates, should I be careful with the length-to-thickness ratio as it is now 1:5?
The aspect ratio is calculated for the overall slab, rather than a meshed plate. For the overall slab or wall, if the span in either direction is less than 10 times its thickness, then the slab or wall becomes more like a solid than like a plate; and thick plate theory may not be adequate. In that case, 8-noded solid elements may be necessary. A bit more or aspect ratios can be found here: Member, Plate and Solid - which one to use? - RAM | STAAD | ADINA Wiki - RAM | STAAD | ADINA - Bentley Communities
Answer Verified By: Sigdel Anup
Thank you for your reply.