DESGIN OF LUG SUPPORTS BY BEDNAR BOOK
DESGIN OF LUG SUPPORTS BY BEDNAR BOOK
(OP)
Hello
I have a question about the example of support lug calcs using Pressure Vessel Design Handbook, 2nd Ed. by H. Bednar.
On page 156 for the Formula of the Maximun Stress in base plate, The formula uses a variable called "Beta".
Could someone explain me about this variable "Beta"? and where can I get it ?
thanks in advice
I have a question about the example of support lug calcs using Pressure Vessel Design Handbook, 2nd Ed. by H. Bednar.
On page 156 for the Formula of the Maximun Stress in base plate, The formula uses a variable called "Beta".
Could someone explain me about this variable "Beta"? and where can I get it ?
thanks in advice





RE: DESGIN OF LUG SUPPORTS BY BEDNAR BOOK
RE: DESGIN OF LUG SUPPORTS BY BEDNAR BOOK
If you look in Roark's book at a rectangular plate, three edges simply supported, one edge free, uniform pressure over the entire plate (Roark's 7th Edition, Table 11.4, Case 2a), you can come up with the beta value of 0.72 for the plate dimension ratio of 1.25.
If you want to know where that came from, you can check the references in Roark or check one of Timoshenko's books. Maybe Theory of Plates and Shells.
RE: DESGIN OF LUG SUPPORTS BY BEDNAR BOOK
RE: DESGIN OF LUG SUPPORTS BY BEDNAR BOOK
I have another question. I am seeing the Roark book 7° edition and for the example of the bednar , it means that the width of the base plate, with value 15", is the simple supported edge and the width of the support under the base plate, with value 12", is the free edge.
Am I right?