Calculate minimum wall thickness for hollow sphere
$30-250 USD
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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).
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