AXIAL COMPRESSION OF THIN-WALLED METAL TUBES

Ramadan. O. Saied; F. M. Shuaeib

doi:10.66411/jer.v9i9.167

Authors

Ramadan. O. Saied Mechanical Engineering Department, Faculty of Engineering, Garyounis University, Benghazi, Libya Author
F. M. Shuaeib Mechanical Engineering Department, Faculty of Engineering, Garyounis University Author

DOI:

https://doi.org/10.66411/jer.v9i9.167

Keywords:

Crushing, Stress ratio, Mean load carrying capacity, In-extensional collapse mode, Plastic hinges, Thin-walled tubes, Tubular structure, Energy absorption

Abstract

The present paper investigates the compression process of thin-walled metal tubes under axial static compression load. Several Specimens of tubes with different diameters 100, 150 and 200 mm and lengths were manufactured using 1.5 thickness low carbon steel sheets (Zinc coated), in order to carry out axial compressive tests. Analytical in-extensional collapse mode was used to predict the mean load carrying capacity, energy absorption and stress ratios. Load-displacement curves were obtained experimentally and four types of collapsed modes were observed. It was noted that the energy of the crushing was absorbed by fixed, included and traveled plastic hinges. Mean load carrying capacity, energy absorption and stress ratio (σ / σ y) were found to be increase with increase of (t/D) ratio

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