The Experts below are selected from a list of 12270 Experts worldwide ranked by ideXlab platform

Meina Huang - One of the best experts on this subject based on the ideXlab platform.

  • the structure and performance of short glass fiber high density polyethylene Polypropylene Composite pipes extruded using a shearing drawing compound stress field
    Materials, 2019
    Co-Authors: Yi Yuan, Changdong Liu, Meina Huang
    Abstract:

    Glass fiber reinforced polyolefin Composite materials have many advantages regarding their performance and have been widely used in many fields. However, there are few reports on the simultaneously bidirectional self-enhancement of glass fiber reinforced polyethylene/Polypropylene Composite pipe. To self-reinforce the pipe's circular and axial properties simultaneously, short glass fiber reinforced high-density polyethylene/Polypropylene (SGF/HDPE/PP) pipes were extruded using a shearing-drawing two-dimensional compound stress field pipe-extrusion device. The effects of the rotating speed of the rotating shear sleeve on the orientation, heat behavior, microstructure, and tensile strength of the pipe were investigated in this paper. The microstructure was observed using scanning electron microscopy (SEM), and the crystal diffraction was analyzed using a polycrystalline X-ray diffractometer (WAXD), the heat behavior was measured using a differential scanning calorimeter (DSC), and the tensile strength was tested using a universal electronic tensile testing machine. The results showed that the shear induction effect induced by the shear rotating promoted the formation of the oriented structure of the crystal plate and SGFs along the circular and axial directions of the pipe simultaneously. Furthermore, it increased the crystallinity of the system, and self-improved the pipe's circular and axial tensile strength at the same time.

  • The Structure and Performance of Short Glass Fiber/High-Density Polyethylene/Polypropylene Composite Pipes Extruded Using a Shearing–Drawing Compound Stress Field
    MDPI AG, 2019
    Co-Authors: Yi Yua, Changdong Liu, Meina Huang
    Abstract:

    Glass fiber reinforced polyolefin Composite materials have many advantages regarding their performance and have been widely used in many fields. However, there are few reports on the simultaneously bidirectional self-enhancement of glass fiber reinforced polyethylene/Polypropylene Composite pipe. To self-reinforce the pipe’s circular and axial properties simultaneously, short glass fiber reinforced high-density polyethylene/Polypropylene (SGF/HDPE/PP) pipes were extruded using a shearing–drawing two-dimensional compound stress field pipe-extrusion device. The effects of the rotating speed of the rotating shear sleeve on the orientation, heat behavior, microstructure, and tensile strength of the pipe were investigated in this paper. The microstructure was observed using scanning electron microscopy (SEM), and the crystal diffraction was analyzed using a polycrystalline X-ray diffractometer (WAXD), the heat behavior was measured using a differential scanning calorimeter (DSC), and the tensile strength was tested using a universal electronic tensile testing machine. The results showed that the shear induction effect induced by the shear rotating promoted the formation of the oriented structure of the crystal plate and SGFs along the circular and axial directions of the pipe simultaneously. Furthermore, it increased the crystallinity of the system, and self-improved the pipe’s circular and axial tensile strength at the same time

W.j. Cantwell - One of the best experts on this subject based on the ideXlab platform.

  • mechanical properties of a novel fiber metal laminate based on a Polypropylene Composite
    Mechanics of Materials, 2009
    Co-Authors: J G Carrillo, W.j. Cantwell
    Abstract:

    Fiber–metal laminates (FMLs) are a relatively new type of material developed from the need to develop high performance lightweight structures with excellent properties under tensile, flexure and impact conditions. The first generation of FMLs was based on thermosetting matrices, typically epoxy resins. Recently, new types of FMLs are emerging as a result of the demand for more efficient and lightweight materials for use in the automotive and aerospace industries. This study characterizes the mechanical properties of a new type of thermoplastic-matrix FML based on a self-reinforced Polypropylene (SRPP) Composite and an aluminum alloy. This FML is manufactured in a simple compression-molding process, allowing it to subsequently be re-shaped according to operational requirements. This paper presents the findings of a study conducted to investigate the mechanical properties for this lightweight thermoplastic FML, investigating its properties in tension, flexure and impact.

  • drawing behaviour of metal Composite sandwich structures
    Composite Structures, 2006
    Co-Authors: Joel Gresham, W.j. Cantwell, Michael Cardewhall, Paul Compston, Shankar Kalyanasundaram
    Abstract:

    Abstract The drawing behaviour of metal–Composite sandwich structures is investigated as a function of the constituent material properties and the process variables of blank preheat temperature and blank-holder force. Materials include three grades of aluminium alloy as the skin layer material and two types of reinforced Polypropylene Composite as the core layer material. Blank-holder force has a significant effect on the failure mode of the metal–Composite system with lower forces resulting in wrinkling as the dominate mode and higher forces resulting in splitting and fracture. Increasing preheat temperature decreases the failure in the Composite core however it will increase the severity of wrinkling in the outer flange and sidewall.

Yi Yuan - One of the best experts on this subject based on the ideXlab platform.

  • the structure and performance of short glass fiber high density polyethylene Polypropylene Composite pipes extruded using a shearing drawing compound stress field
    Materials, 2019
    Co-Authors: Yi Yuan, Changdong Liu, Meina Huang
    Abstract:

    Glass fiber reinforced polyolefin Composite materials have many advantages regarding their performance and have been widely used in many fields. However, there are few reports on the simultaneously bidirectional self-enhancement of glass fiber reinforced polyethylene/Polypropylene Composite pipe. To self-reinforce the pipe's circular and axial properties simultaneously, short glass fiber reinforced high-density polyethylene/Polypropylene (SGF/HDPE/PP) pipes were extruded using a shearing-drawing two-dimensional compound stress field pipe-extrusion device. The effects of the rotating speed of the rotating shear sleeve on the orientation, heat behavior, microstructure, and tensile strength of the pipe were investigated in this paper. The microstructure was observed using scanning electron microscopy (SEM), and the crystal diffraction was analyzed using a polycrystalline X-ray diffractometer (WAXD), the heat behavior was measured using a differential scanning calorimeter (DSC), and the tensile strength was tested using a universal electronic tensile testing machine. The results showed that the shear induction effect induced by the shear rotating promoted the formation of the oriented structure of the crystal plate and SGFs along the circular and axial directions of the pipe simultaneously. Furthermore, it increased the crystallinity of the system, and self-improved the pipe's circular and axial tensile strength at the same time.

Md Nazrul Islam - One of the best experts on this subject based on the ideXlab platform.

  • chemical treatment of coir fiber reinforced Polypropylene Composites
    Industrial & Engineering Chemistry Research, 2012
    Co-Authors: Md Mominul Haque, Mahbub Hasan, Md Nazrul Islam
    Abstract:

    Agro-based renewable materials have received significant attention in recent years because of their low cost, light weight, ecofriendliness, and worldwide environmental awareness. In the present work, coir fiber reinforced Polypropylene Composites were manufactured using injection molding method. Raw coir was chemically treated with benzene diazonium salt in alkali, acidic, and neutral media separately in order to increase the compatibility between the coir fiber and Polypropylene Composite. During chemical treatment, hydrophilic -OH groups in the raw coir cellulose were converted to hydrophobic -O–Na groups. Both raw and treated coir at 10, 15, 20, 25, 30, and 35 wt % were utilized during Composite manufacturing. Microstructural analysis and mechanical tests were conducted. Alkali treated specimens yielded the best set of mechanical properties. On the basis of fiber loading, 30% fiber reinforced Composites had the optimum set of mechanical properties among all Composites manufactured.

Anthony Sexton - One of the best experts on this subject based on the ideXlab platform.

  • stretch forming studies on a fibre metal laminate based on a self reinforcing Polypropylene Composite
    Composite Structures, 2012
    Co-Authors: Anthony Sexton
    Abstract:

    Abstract This paper investigates the room temperature formability of a fibre metal laminate system comprised of aluminium and a self-reinforcing Polypropylene Composite. Blanks of varying geometry were stretch formed over a hemispherical punch in a custom built stamping press. A real-time three-dimensional photogrammetric measuring system was used to acquire the evolution of surface strain and the strain at failure during forming. The results from this work illustrate that these advanced light weight material systems are amenable to mass production through stamp forming. A significant finding from this work is that these material systems can exhibit forming characteristics that are comparable and sometimes superior to metal forming.