Experimental investigation of structural behavior of 316L stainless steel and carbon steel slit dampers

Hwang, BoKyung; Kim, TaeSoo; Ahn, Yonghan

doi:10.1016/j.tws.2023.110704

Cited by 9 publications

(2 citation statements)

References 17 publications

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“…In addition, due to its strength-toweight ratio, stainless steel allows for design flexibility resulting in the construction of lighter structures. Recent studies [3][4][5][6][7][8] are focused on verifying the efficiency of employing seismic fuse elements made of stainless steel compared to conventional carbon steels. The studies on moment-resisting frames [3], braced frames [4], retrofitting framed structures [5], slit dampers [6], beam-to-column connection using flush end-plate and web angle [7], diagonally stiffened shear walls [8] fabricated using stainless steel shows improved seismic performance.…”

Section: Introductionmentioning

confidence: 99%

“…Recent studies [3][4][5][6][7][8] are focused on verifying the efficiency of employing seismic fuse elements made of stainless steel compared to conventional carbon steels. The studies on moment-resisting frames [3], braced frames [4], retrofitting framed structures [5], slit dampers [6], beam-to-column connection using flush end-plate and web angle [7], diagonally stiffened shear walls [8] fabricated using stainless steel shows improved seismic performance. All these structural fuse elements used in seismic-resistant structures are designed using the capacity design principle.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of seven ductile fracture initiation prediction models for stainless steel

Nambirajan,

Ghosh,

Kumar

2023

ce papers

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Seven axisymmetric notched specimens extracted from stainless steel of yield strength 450MPa are tested under monotonic loading. The numerical simulation of all seven specimens is modeled in ABAQUS CAE, and the inbuilt constitutive model is used to capture the isotropic hardening behavior. The hardening parameters are calibrated until the numerical model simulates the exact behavior of load versus elongation obtained through experiments. The calibrated numerical model is used to determine the three fracture‐predicting parameters, namely stress triaxiality (T), equivalent plastic strain (PEEQ), and Lode angle (L). These three parameters are required in developing the fracture locus of 450 MPa Indian stainless steel. In addition, the study employs seven existing fracture prediction models for fracture initiation in all seven study samples. Using the determined values of T, PEEQ, and L at the fracture initiation point from the calibrated numerical simulation, the co‐efficient of all the seven selected models is calibrated. With the mean calibrated co‐efficient of all the specimens, the balanced error for all the models is calculated. With the help of the calculated balanced error, the efficiency of all the selected models in predicting the fracture initiation point is compared. Finally, the efficient model for 450 MPa Indian stainless steel is identified in this study.

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