Block shear strength of cold-formed austenitic stainless steel (304 type) welded connection with base metal fracture

Lee, Hoochang; Hwang, BoKyung; Yang, Wonjik; Kim, Taesoo

doi:10.1016/j.tws.2019.04.045

Cited by 9 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lee et al (2019d) confirmed the critical section line of the welded connections of STS304, and the stress distribution at the line was confirmed through experimental and analytical studies on block shear behaviour of base metal fracture welded joints made of austenitic stainless steel STS304 (average mechanical properties: Fy = 262.34 MPa, Fu = 725.56 MPa, Fu/Fy = 2.76, elongation = 75.14%, nominal plate thickness = 3.0 mm), and the following equation (8) was proposed. The tensile stress factor of 1.35, which is higher than the value of 1.25 for carbon steel welded connections presented by previous studies (Topkaya (2004, 2007) and Oosterhof and Driver (2010) in the tensile fracture compared to the material tensile strength (Fu), and the shear stress factor of 1.15 for the average value of the yield stress and tensile strength of the material in the shear fracture region were also presented.…”

Section: Comparison Of Test Strength and Prediction By Current Design...mentioning

confidence: 99%

“…The block shear strength of steel connections has been investigated experimentally and numerically by many researchers. A variety of strength equations have been reported in the literature (Birkemore and Gilmor, 1978; Cho et al, 2021c; Driver et el., 2006a; Dobrić et al, 2021d; Kim et al, 2020c; Lee et al, 2017b; Lee et al, 2018e; Lee et al, 2019d; Lin et al, 2022e; Maleki and Ghaderi-Garekani, 2020d; Teh and Clements, 2012b). Stainless-steel design specifications are available from sources such as the European code (EN 1993-1-4) (EC, 2015a), the American code (ASCE) (2002), the Australian/New Zealand code (AS/NZS 4673) (2001), the Korean code (KDS 41 30 40) (2022b) and the Japanese code (SSBA) (2006b).…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, their design predictions have been found to be quite conservative for the block shear strength of welded connections. Recent experimental and numerical studies on the block shear behaviours of welded connections fabricated with nominal 3.0 mm thick cold-formed austenitic stainless and ferritic stainless steel have conducted (Lee et al, 2018e, 2019d; Yuk et al, 2019g) and revised block shear strength equations were suggested considering the material properties difference of each stainless steel.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of material property and thickness on block shear strength in lean duplex stainless steel welded connections

Cho,

Kim,

Kim

2023

Advances in Structural Engineering

Self Cite

View full text Add to dashboard Cite

Recently, studies have been carried out to apply lean duplex stainless steels, with less than 1.5% nickel, which provides higher material strength and lower cost compared with austenitic stainless steel for building structures. This study compared with existing experimental and finite element analysis results on the structural behaviours of cold-formed lean duplex stainless steel welded connections with different tensile strength (tensile strength-to-yield stress ratio) and plate thickness despite identical steel grade. The main variables are plate thickness and weld lengths. The material tensile strength of a 3.0 mm thick plate was 22% lower than that of a 1.5 mm thick plate. All specimens showed block shear facture in the base metal. Block shear strengths predicted by current design codes and the proposed equations from previous studies were compared with test strengths. KDS 41 31 00-19/AISC2016 and EC3 design specifications underestimated block shear capacity by on average 24%, 43%, respectively for 1.5 mm and 3.0 mm thick specimens, and equations suggested in previous studies of stainless steel welded connections did not sufficiently account for the influence of stress triaxiality by material property and plate thickness difference on the block shear strength of lean duplex stainless steel specimens. Therefore, thickness-dependent modified strength equations were recommended based on experimental and numerical studies of lean duplex stainless steel welded connections and comparison of carbon steel and other stainless steel connections.

show abstract

Section: Comparison Of Test Strength and Prediction By Current Design...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of material property and thickness on block shear strength in lean duplex stainless steel welded connections

Cho,

Kim,

Kim

2023

Advances in Structural Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…Moreover, the structural design standards for stainless steel structural members are not yet available. In Korea, recently, many researchers have performed studies on structural behaviors, such as fracture mode and ultimate strength of bolted and welded connections of thin-walled (cold-formed) stainless steel plates through experimental and analytical methods [6][7][8][9].…”

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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Numerical Study of Load Eccentricity Effects on Block Shear Rupture of Welded Gusset Plates

Ghaderi-Garekani

Maleki

2023

Int J Steel Struct

View full text Add to dashboard Cite

Block shear strength of cold-formed austenitic stainless steel (304 type) welded connection with base metal fracture

Cited by 9 publications

References 6 publications

Effects of material property and thickness on block shear strength in lean duplex stainless steel welded connections

Effects of material property and thickness on block shear strength in lean duplex stainless steel welded connections

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

Numerical Study of Load Eccentricity Effects on Block Shear Rupture of Welded Gusset Plates

Contact Info

Product

Resources

About