Recently, there has been an increased interest in sodium-ion batteries (SIBs), which cathodes that directly determine the performance of play a critical role. Among cathode materials, layered oxide are most fascinating electrode materials for SIBs. However, irreversible phase transition, low capacity, poor air stability, and inferior cycling stability limit application oxides. In this study, ho...

Abstract In this paper, the development of algorithm-based process models for mechanical joining self-pierce riveting with semi-tubular rivet (SPR-ST) is described. Therefore, an extensive experimental and numerical database regarding SPR-ST strength steel aluminum joints tensile strengths sheets between 200 1000 MPa was generated building models. This data could then be used training evaluatio...

An aircraft is a multilayer structure that assembled by rivets. Under extreme working conditions, corrosion appears and quickly propagates at the rivet sites of layers; thus, it threads integrity safety aircraft. Corrosion usually occurs hidden layer around rivet, making difficult to detect. This paper proposes machine learning approach incorporating an electromagnetic testing system detect riv...

• A calibrated, stress-state based SPR process FE model is developed. The joining feasibility and joint quality of a wide range riveted connections investigated. High rivet leg inner radius values are shown to increase the quality. Low central tip depths relate high probabilities successful formation. Machine learning techniques can classify for riveting scenarios. Developing robust numerical s...

Self-pierce riveting (SPR) is a major joining method used in the automotive industry. However, there still lacks fast and easy-to-use joint quality prediction tool available for engineers. In this study, simple but effective regression analysis was applied to quickly predict SPR quality. Two models were developed of interlock minimum remaining bottom sheet thickness (Tmin). The accuracy validat...