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Table 1 Characteristics of the cylinders and experimental buckling loads

From: ASTER Shell: a simple concept to significantly increase the plastic buckling strength of short cylinders subjected to combined external pressure and axial compression

External pressure

A1

A2

A3

A4

h (\(\upmu \text{m}\))

150

150

154

158

R/h

500

500

487

475

Z

1220

1220

1190

1160

E (GPa)

162

155

158

152

\(P_{exp}\) Buckling pressure (MPa)

0.021

0.019

0.020

0.0223

\(P_{E}\) (MPa)

0.0213

0.0204

0.0222

0.0227

\(\frac{P_{exp}}{P_{E}}\)

0.986

0.931

0.900

0.982

Fourier mode n

11

10

11

11

Axial compression

A5

A6

h (\(\mu m\))

150

148

R/h

500

500

Z

1220

1933

E (GPa)

163

155

\(F_{exp}\) Buckling load (N)

11,000

9275

\(F_{E}\) (N)

14,193

13,125

\(\frac{F_{exp}}{F_{E}}\)

0.775

0.707

Fourier mode n

11

12