Is Hertzian Stress a Factor in Blast Resistant Door Design?

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The discussion focuses on the design considerations for a blast-resistant door subjected to a blast pressure of 450 psi for 100 milliseconds, with dimensions of 2100 mm x 1100 mm. Participants discuss whether dynamic loads can be converted into static loads and the factors involved if so. It is emphasized that the door must be designed to prevent buckling and shearing, ensuring peak stress remains within the elastic range. The relevance of Hertzian stress is questioned, particularly regarding its significance at low frequencies. Overall, the design must ensure the door's thickness is adequate to withstand the specified blast conditions.
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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
 
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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?
 

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