In this paper, the experimental study and finite elements analysis were conducted on homogeneous and dissimilar metals single lap-shear bonded joints to investigate the factor that affect the joint failure load. It was found that factors which have the significant effects on the failure load of the joint was stiffness of the adherends. And from experimental results, it can be confirmed that the failure load increases linearly with overlap length increases. And the failure load of dissimilar metal joints is approximately 1KN(10 ～17%) larger than homogeneous metal joints. In order to confirm this phenomenon, the stress distribution and strain distribution of the specimens were analyzed through the finite element analysis. The difference between homogeneous metals joints and dissimilar metals joints is that stress and strain in adhesive are concentrated at the end of the overlap zone close to aluminium which has lower rigidity than aluminium in case of dissimilar metals joints. From high rigidity of steel, the stress concentration in bonds are decreased and it cause increase of the failure strength at dissimilar metal joints.

Stainless steel has many advantages such as excellent durability, ductility and corrosion resistance. Recently, the use of stainless steel has been increased in a variety of structural members and industrial fields. But, stainless steels are not included is the structural materials of Korean building standards and corresponding design standards are not specified. In this paper, finite element analysis has been performed to investigate the ultimate strength of single shear duplex stainless steel (STS329FLD) four-bolted connection with extended variables. As a result, strength reduction ratio by curling was estimated quantitatively.

This study focused on the ultimate behaviors(ultimate strength and fracture mode ) of single shear bolted connection with austenitic sainless steel(STS201) and curling effect on the ultimate strength using finite element analysis based on test results. Main variables are end distance in the parallel direction to loading and edge distance in the perpendicular direction to loading. The validation of finite element analysis procedures was verified through the comparisons of ultimate strength, fracture mode and curling(out-of-plane deformation) occurrence between test results and numerical predictions. Curling was observed in both test and analysis results and it reduced the ultimate strength of single- shear bolted connections with relatively long end distances. Strength reduction ratios caused by curling were estimated quantitatively by maximum 19%, 32%, respectively for specimens with edge distance, 48 mm and 60 mm compared with strengths of uncurled connections with restrained out-of-plane deformation. Finally, analysis strengths were compared with current design strengths and it is found that design block shear equations did not provide the accurate predictions for bolted connections with strength reduction by curling.

This study focused on the ultimate strength and curling effect on the strength of single shear bolted connection with austenitic sainless steel (STS201) using finite element analysis. The validation of finite element analysis was verified through the comparisons of ultimate strength and fracture mode between existing test results and numerical predictions. Curling (out-of-plane deformation) was observed in both test and analysis and it reduced the ultimate strength of single shear bolted connections with relatively long end distances. Strength reduction ratio caused by curling was estimated quantitatively by maximum 19%, 32%, respectively for specimens with edge distance, 48mm and 60mm compared with strengths of uncurled connections with restrained out-of-plane deformation.

This study is to investigate the ultimate strength and curling influence of single shear two bolted connection with 7075-T6 aluminum alloys. The validation of element analysis was verified through the comparison between test result and finite element analysis prediction and strength reduction rate by curling was estimated quantitatively. Moreover, additional parametric analysis with extended variables was conducted and the conditions of curling occurrence according to end distance and edge distance were proposed.

This study investigates the ultimate strength and curling influence in single shear bolted connection with 7075-T6 aluminum alloys using numerical approach. The applicability of finite element analysis was validated through the comparison between existing test results and numerical predictions. Curling was observed in some specimens with a relatively long end distance and reduced the ultimate strength of bolted connection. Strength reduction ratio by curling was estimated quantitatively and it is known that curling caused the strength reduction by maximum 21%.

This study investigates the ultimate strength and curling influence in single shear bolted connection with aluminum alloys(6061-T6) using finite element analysis. The applicability of numerical modeling was validated through the comparison of existing test results. Main variables are end distance and edge distance. Strength reduction ratio by curling was estimated quantatively and it is known that the curling reduced the ultimate strength by maximum 26%.

Generally, bolted connection was used in stainless steel structural basic design for stainless steel bolted connection is similar to that of carbon steel connection. However, stainless steel with high ductility can be more beneficial if the mechanical characteristics are well used. Experimental and analysis studies had conducted. Curling was observed in some specimens with a relatively long end distance and affected strength reduction of bolted connection. Besides, finite element model had developed and its validation was verified through comparison with test results. In this paper, parametric analysis was performed using proven FE model. Key variables are the end distance and plate thickness of bolted connection. Ultimate strength and curling effect were also investigated.

Recently, study on the application of sustainable materials to building and civil structure fields has been increased. Especially, the usage of aluminum alloys can improve durability of structures due to it’s high corrosion resistance. In this study, to investigate the ultimate behaviors such as ultimate strength and fracture mode of single shear bolted connections with aluminum alloys (7075-T6), experiments were conducted. Main variables are bolt arrangement and end distance parallel to the direction of load. As a result, the specimens failed by shear out fracture and block shear fracture and also the specimens with long end distance were accompanied by curling (out of plane deformation). The curling led to reduction of ultimate strength or rigidity. Futhermore, pattern of strain distribution was investigated according to curling occurrence.