According to the direct homogenization theory of inhomogeneous material, a single medium homogenization constitutive model of the confined concrete in the steel box-concrete combined member has been established, and model parameters have been determined by the measured data of the bending test. By analyzing the theoretical ultimate strength and overall process curve, the results obtained is con...

Bending angle obtained in laser forming process is much smaller than that conventional die pressing or roller bending processes. Therefore, multi-stage necessary to form deep drawn shapes and/or complex by forming. However, irradiation varies material properties, posture, and stiffness of metal plates, those influences are accumulated during the consecutive stages process. Thus, thermo-elasto-p...

Flexible forming processes are characterized by the implementation of shape-independent tools. However, varying properties of semi-finished goods in conjunction with the lack of a forming tool technology also lead to an insufficient reproducibility of the products. In order to overcome this problem a closed-loop control system for the on-line-capable process control was worked out for laser for...

Abstract This work demonstrated the fusion splicing of plastic optical fibers (POFs) using a 2.8 μ m continuous-wave fiber laser. mid-IR laser-based technique does not require use adhesives or any other treatments. The performance proposed method was investigated by assessing transmission, tensile strength and bending values POF specimens after bonding while employing various conditions. An tra...

Flexible electrically conductive nanowires are now a key component in the fields of flexible devices. The achievement of metal nanowire with good flexibility, conductivity, compact and smooth morphology is recognized as one critical milestone for the flexible devices. In this study, a two-beam laser direct writing system is designed to fabricate AgNW on PET sheet. The minimum width of the AgNW ...