Ultimate strength of austenitic stainless steel fillet-welded connections with weld metal fracture

Lee, Hoochang; Hwang, BoKyung; Kim, Taesoo

doi:10.1016/j.tws.2017.03.008

Cited by 17 publications

(13 citation statements)

References 5 publications

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“…This study develops a finite element analysis model using ABAQUS 2016, a nonlinear analysis program and compares the analysis results with the experimental results referring to existing numerical analysis procedures [12,13]. In addition, the influence of the weld length on the base metal block shear fracture of the welded connection is evaluated by parametric analysis.…”

Section: Analysis Modelmentioning

confidence: 99%

“…As a series of the block shear strength estimation for stainless steel welded connection, experimental and analytical studies have been performed on the structural behavior of the base metal and weld metal fracture of welded connections made of austenitic stainless steel STS304 (ASTM 304 type) [12] and STS304L (ASTM 304L type) [13]. The predicted block shear strength according to the current design equations of KBC, AISC, and EC3.…”

Section: Introductionmentioning

confidence: 99%

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An Investigation on Base Metal Block Shear Strength of Ferritic Stainless Steel Welded Connection

Yuk

Hwang

et al. 2019

Applied Sciences

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This study develops a finite element analysis model to predict the ultimate strength of the base metal block shear fracture based on previous experimental results and compares the experimental results with the analysis results to verify the effectiveness of the analysis model. This study also analyzed additional variables of the welding direction and weld length on the applied load to investigate the structural behaviors and fracture conditions. In addition, predicted strength according to the analysis results were compared with those by the current design equations, and the equations proposed by previous researchers. As a result, the design formula by the current design equations, such as Korea Building Code (KBC)/American Institute of Steel Construction (AISC) and European Code (EC3), and the equations proposed by Oosterhof and Driver underestimated the base metal block shear strength of ferritic stainless steel by up to 42%. Equations suggested by Topkaya and Lee et al. for carbon steel and austenitic stainless steel welded connections provided more accurate strength predictions, while they did not reflect the difference of material properties. Therefore, this study proposed a modified strength equation for ferritic stainless steel welded connection with base metal block shear fracture considering the stress triaxiality effect of the welded connection and the material properties of ferritic stainless steel.

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Section: Analysis Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Investigation on Base Metal Block Shear Strength of Ferritic Stainless Steel Welded Connection

Yuk

Hwang

et al. 2019

Applied Sciences

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“…Stainless steels can be divided into five main groups: austenitic, ferritic, martensitic, duplex and precipitation hardening [1]. Austenitic stainless steels (ASSs) are widely used and play an inevitable role in many fields of manufacturing, due to their outstanding mechanical and functional properties such as high ductility, high strength, acceptable weldability and extraordinary resistance against corrosion [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…They have high toughness and ductility at cryogenic temperatures (-273°C). Besides, they keep strength at elevated temperatures longer than ferritic stainless steels [1,18]. They can be produced with yield strength about 200 MPa, if required.…”

Section: Introductionmentioning

confidence: 99%

“…Stabilizing elements extremely enhances the creep strength by promoting the formation of fine intergranular carbides. Niobium to be a strong former of Nb (C, N) carbonitrides can block the formation of chromiumrich carbide at grain boundaries accompanying chromiumdepleted zones [1] and hence improve intergranular and pitting corrosion resistance during aging process [6,20,21]. As regards to heat treatment of ASSs, solution heat treatment is used in order to decrease the susceptibility to intergranular corrosion by solubilizing the chromium-rich carbide [6].…”

Section: Introductionmentioning

confidence: 99%

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Effect of inclusions on mechanical properties of Nb stabilized austenitic stainless steels (316Nb) with centrifugal and sand casting techniques

Türker

Çapan

2017

Matériaux & Techniques

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In this study, 316Nb stabilized austenitic stainless steel pieces were produced via sand and centrifugal casting method in order to be investigated. Heat treatments were done in two stages, and cooling was made in various quenching mediums. As-cast parts and the parts with only the highest and the lowest tensile strength were investigated. Metallographical analyses were made and the content of non-metallic inclusions was examined. Various types of carbides in microstructures were determined by means of SEM-EDX analysis. The sand casting samples had more non-metallic inclusions than the centrifugal casting ones. After the tensile tests, it was seen that these inclusions had significant effect on the mechanical properties. The tensile strength, the yield strength, the elongation and the hardness values of the centrifugal casting samples were higher than the sand casting ones. Investigating the SEM-EDX analyses, it was determined that the sand cast samples had chromium carbides in small quantities, in addition to niobium carbides. Centrifugal cast parts had niobium carbides.

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Neue Entwicklungen in prEN 1993‐1‐4:2022

Stranghöner¹,

Baddoo²,

Meza³

et al. 2023

2023 Stahlbau Kalender

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Ultimate strength of austenitic stainless steel fillet-welded connections with weld metal fracture

Cited by 17 publications

References 5 publications

An Investigation on Base Metal Block Shear Strength of Ferritic Stainless Steel Welded Connection

An Investigation on Base Metal Block Shear Strength of Ferritic Stainless Steel Welded Connection

Effect of inclusions on mechanical properties of Nb stabilized austenitic stainless steels (316Nb) with centrifugal and sand casting techniques

Neue Entwicklungen in prEN 1993‐1‐4:2022

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