Welding is a method of joining components in manufacturing piping and pressure vessels. This method is used to joint cylindrical vessel and head, vessel and nozzle, and pad attachment for lifting lug. This paper aims to present results of finite element study of strength and structural integrity of fillet weld used for pad attachment of lifting lug to lift a horizontal cylindrical vessel. It is aware that the pad attachment and the cylindrical vessel are not integrally jointed. The joint of pad attachment and the cylinder is only along the peripheral of the rectangular pad. Therefore, there is inherent crack introduced in this structural connection, the crack length equals to the axial and circumferential length of the pad. Study of the effect of crack length on limit load has been performed separately in 2D for circumferential and axial direction. The crack length parameter was 200, 210, 220, 230, 240 and 250 mm. The results surprisingly show that crack length does not increase or decrease the limit load. It seems that strength of material approach does not work for dealing with cracked structures. Linear Elastic Fracture Mechanics (LEFM) analysis then was performed to study the effect of axial crack length on stress intensity factors of KI and KII. Results show that both KI and KII increased as the crack length increase.
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26 June 2018
HUMAN-DEDICATED SUSTAINABLE PRODUCT AND PROCESS DESIGN: MATERIALS, RESOURCES, AND ENERGY: Proceedings of the 4th International Conference on Engineering, Technology, and Industrial Application (ICETIA) 2017
13–14 December 2017
Surakarta, Indonesia
Research Article|
June 26 2018
Strength and structural integrity assessment of fillet weld attachment junction on cylindrical pressure vessels
Destarius Mahardika;
Destarius Mahardika
1Graduate Student,
Department of Mechanical Engineering, Universitas Lampung
Jl. Professor Soemantri Brojonegoro No.1, Bandar Lampung, 35145, Indonesia
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Asnawi Lubis;
Asnawi Lubis
a)
2
Structural Mechanics Research Group, Department of Mechanical Engineering, Universitas Lampung
Jl. Professor Soemantri Brojonegoro No.1, Bandar Lampung, 35145, Indonesia
a)Corresponding author: [email protected]
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Jamiatul Akmal
Jamiatul Akmal
2
Structural Mechanics Research Group, Department of Mechanical Engineering, Universitas Lampung
Jl. Professor Soemantri Brojonegoro No.1, Bandar Lampung, 35145, Indonesia
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a)Corresponding author: [email protected]
AIP Conf. Proc. 1977, 030030 (2018)
Citation
Destarius Mahardika, Asnawi Lubis, Jamiatul Akmal; Strength and structural integrity assessment of fillet weld attachment junction on cylindrical pressure vessels. AIP Conf. Proc. 26 June 2018; 1977 (1): 030030. https://doi.org/10.1063/1.5042950
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