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Numerical-experimental analysis of a modified G-BOP test to evaluate cracks in weld beads in thin sheets

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Abstract

One of the most critical problems related to welding is the occurrence of Hydrogen-Induced Cracking (HIC), and despite all the efforts made to mitigate this defect, it remains present in the modern welding industry. Although the Gapped Bead-on-Plate (G-BOP) test is one of the most practical methods for assessing susceptibility to HIC, the use of a thick plate as the base metal (BM) restricts its application. Considering that many materials, such as the High-Strength-Low-Alloy (HSLA) steels, are difficult to find commercially in the required thickness, and also the fundamental need to appropriately represent the relationship between BM and electrode, da Silva, Fals and Trevisan developed a modified G-BOP test that uses a thinner sheet as the BM. Thus, the present paper aims to evaluate the ability of the Finite Element Method (FEM) to represent the thermomechanical aspects of the G-BOP test and to analyze its modified version using a numerical-experimental approach. In addition to consolidating the modified G-BOP test, the results corroborate the FEM as an important ally in HIC studies.

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Acknowledgements

The Departments of Mechanical and Materials Engineering of the Universidade Federal da Paraíba (Brazil), with its many laboratories, provided all the structure needed for the production of the article.

Funding

This work is financially supported by CNPq (Brazil).

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Authors and Affiliations

  1. Department of Mechanical Engineering, Universidade Federal da Paraiba, Campus I - Lot. Cidade Universitária, s/n - Castelo Branco, João Pessoa, PB, 58051-900, Brazil

    Saulo Moretti Araújo Duarte, Heitor Abdias da Silva Pereira, Kelly Cristiane Gomes & José Hilton Ferreira da Silva

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  1. Saulo Moretti Araújo Duarte
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  2. Heitor Abdias da Silva Pereira
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  3. Kelly Cristiane Gomes
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  4. José Hilton Ferreira da Silva
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Correspondence to Heitor Abdias da Silva Pereira.

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Author contribution

Saulo M.A. Duarte is the main author, having contributed to the experimental analysis and writing of the article. Heitor A.S. Pereira contributed to the simulations and editing the article. José H.F. da Silva and Kelly C. Gomes served as supervisors.

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Duarte, S.M.A., Pereira, H.A.d.S., Gomes, K.C. et al. Numerical-experimental analysis of a modified G-BOP test to evaluate cracks in weld beads in thin sheets. Int J Adv Manuf Technol 118, 2559–2569 (2022). https://doi.org/10.1007/s00170-021-08121-z

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