What is it about?
Pressure vessels must withstand the highest pressure without damage. The best shape has the certain egg-form, which guarantees the maximal pressure without damage or collapse.
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Why is it important?
The pressure vessels accumulate damage during each cycle. The damage accumulation leads to the collapse of the structure after the certain number of cycles. The optimal vessel can withstand the highest number of load cycles.
Perspectives
The careful design of pressure vessels must account a number of additional important effects: environmental degradation of laminated material; mean stress sensitivity; heterogenous thermal expansion in case of multi-material design; interlaminar stress (notably in case of multi-material design); jumps of stresses on the boundary between the different materials (for example, steel, titanium, aluminum on one side and different fiber-reinforced composites, as glass, carbon, boron on the other side).
Vladimir Kobelev
Uni Siegen
Read the Original
This page is a summary of: The anisotropic pressure vessel of minimal mass, Structural and Multidisciplinary Optimization, May 2016, Springer Science + Business Media,
DOI: 10.1007/s00158-016-1486-2.
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