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Calculate minimum wall thickness for hollow sphere

We plan to make a homogeneous hollow sphere of 100cm outer diameter under outside pressure. We need a calculation of wall thickness. Inside the vessel there will be one bar pressure. Outside 200 bar. The additional safety factor shall be 50%.

Material Parameters are:

Tensile strength: 80 MPa
Elongation at break failure: 5.5%
Elasticity modulus: 3300 MPa
Bending strength: 115 MPa
Shear modulus: 1700 MPa
Impact strength: 15 kJ / m²
Notched impact strength: 1.6 kJ / m²
Permissible material tension: 5 - 10 MPa

A sphere is the simplest possible geometrical shape. An analytically (physics) derived result is much prefered compared to simulation (e.g. finite elements).

Skills: Materials Engineering, Mechanical Engineering, Physics

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About the Employer:
( 10 reviews ) Karlsruhe, Germany

Project ID: #15430952

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rajeshkumararora

Hello – I am Rajesh having a PhD in engineering from a top university and have successfully completed design and simulation projects in the area of mechanical engineering. Relevant Skills and Experience I am highly qu More

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24 freelancers are bidding on average $97 for this job

irfanshekh

Hello, I can design this sphere for you, calculate the thick the of the walls, please come in chat to discuss all the cases and all the possible material you wants to use. Relevant Skills and Experience I have 6 years More

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saied2017

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jhosram

I am a mechanical engineer with experience in solid design, I can offer you to perform this job with the help of SolidWorks with the material conditions and evaluate the pressure on the sphere Habilidades y experienci More

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Developer000

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Deepak3103

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