L/D

R/t

Z

Pcr (in KN)

P/Pcr

ξ = 0.1

ξ = 0.5

ξ = 1.0

5

500

47,650

7.077

0.918

0.798

0.660

2.5

500

11,913

7.214

0.854

0.578

0.502

1

500

1906

7.350

0.773

0.535

0.421

0.5

500

477

7.612

0.768

0.450

0.334

5

100

9530

157.803

0.824

0.890

0.812

2.5

100

2383

174.247

0.781

0.632

0.637

1

100

381

177.716

0.776

0.530

0.485

0.5

100

95

196.158

0.750

0.521

0.442