Preventing environmental and health problems due to LPG transport tank leaks: fatigue and crack behavior of heat-treated steel investigation

Abstract

This study aims to investigate the effects of welding on the fatigue and crack behavior of ASTM A36 steel, a low-carbon steel commonly used in various applications, particularly in pressure vessel transport tanks for preventing environmental and health problems due to liquid petroleum gas (LPG) transport tank leaks. This research evaluates the influence of welding on the material’s properties through various testing methodologies, including impact and fatigue tests. The impact tests were conducted using the Charpy V-Notch method, while fatigue tests employed the repeated bending method. The specimens were subjected to testing at different temperatures and angles to evaluate their performance under various conditions. The findings indicate that welding introduces weaknesses in the material, affecting its impact energy and fatigue life. Visual observations and metallographic examinations further revealed the fracture characteristics and microstructural changes in welded and non-welded specimens.

Keywords:

• Fatigue
• crack
• pressure vessel
• welding
• fracture

Review editor:

• D T Pham [email protected]
• [email protected] Editor-in-Chief

Classification:

• Engineering & technology
• mechanical engineering design
• testing

Acknowledgments

The authors gratefully thank the author’s respective institution for their strong support in this study.

Disclosure statement

The authors declare no conflict of interest.

Author contribution

Hendri Chandra: Conceptualization, Methodology, Supervision and Funding Acquisition.

Muhammad Imam Ammarullah: Software, Validation, Writing – review and editing, Visualization and Project administration.

M. Marwani: Software, Validation and Formal analysis.

E. Ellyanie: Software, Validation and Formal analysis.

W. Warizal: Investigation and Resources.

Dimas Aditya: Formal analysis, Investigation and Writing – original draft preparation.

Diah Kusuma Pratiwi: Conceptualization, Methodology and Supervision.

Nurhabibah Paramitha Eka Utami: Conceptualization, Methodology and Supervision.

Data availability statement

The necessary data used in the manuscript are already present in the manuscript.

Additional information

Funding

The research was funded by Universitas Sriwijaya.