Is Hertzian Stress a Factor in Blast Resistant Door Design?

  • Thread starter Thread starter ajay_vjti
  • Start date Start date
  • Tags Tags
    Design
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
Sign up Log in
2 replies · 6K views
ajay_vjti
Messages
1
Reaction score
0
Dear all

i am studing in VJTI mumbai
I am a production student

I have given a problem on Blast resistant door design

Input is Blast pressure is 450 psi for 100 ms(millisec)
door size is 2100 mm x 1100 mm

Can Dynamic load converted into Static load?
if yes then what is that factor?

if no then What is a procedure to verify the thickness of door is
acceptable?

waiting for reply
pleasezzzzzzzzzzzzzzzzz do help me
 
Physics news on Phys.org

Discussion

Input is Blast pressure is 450 psi for 100 ms(millisec)
door size is 2100 mm x 1100 mm

Well one has 450 psi (2.1 m x 1.1 m) which gives a distributed load.

The door must avoid buckling and shearing, and one would design it for peak stress in the elastic range.
 
Astronuc said:
Input is Blast pressure is 450 psi for 100 ms(millisec)
door size is 2100 mm x 1100 mm

Well one has 450 psi (2.1 m x 1.1 m) which gives a distributed load.

The door must avoid buckling and shearing, and one would design it for peak stress in the elastic range.

Would hertzian stress matter? Or would the frequency be too low for it to matter?