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  • Open Access


    Process Evaluation, Tensile Properties and Fatigue Resistance of Chopped and Continuous Fiber Reinforced Thermoplastic Composites by 3D Printing

    Wei Chen1,2, Qiuju Zhang1,2,*, Han Cao1,2, Ye Yuan1,2

    Journal of Renewable Materials, Vol.10, No.2, pp. 329-358, 2022, DOI:10.32604/jrm.2022.016374

    Abstract The aim of this article was to comprehensively evaluate the manufacturing process, tensile properties and fatigue resistance of the chopped and continuous fiber reinforced thermoplastic composites (CFRTPCs) by 3D printing. The main results included: the common defects of the printed CFRTPCs contained redundant and accumulation defects, scratch and warping defects; the continuous fiber contributed to the dimensional stability and accuracy of width and thickness; associations between mass percentage of fiber reinforcement and the averages of elastic modulus, strain at break and ultimate tensile strength were approximately linear based on tensile test results; the fatigue resistance improved with the increasing fiber… More > Graphic Abstract

    Process Evaluation, Tensile Properties and Fatigue Resistance of Chopped and Continuous Fiber Reinforced Thermoplastic Composites by 3D Printing

  • Open Access


    A Method for Measuring Displacement and Strain of Rubber Sheets with Large Deformation Using Digital Image Correlation

    Kengo Fujii1, Satoru Yoneyama1, Ayaka Suzuki2, Hiroshi Yamada2

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.23, No.1, pp. 21-21, 2021, DOI:10.32604/icces.2021.08538

    Abstract This study establishes a method to measure the displacement and strain of rubber with large and fast deformations using digital image correlation. In order to elucidate the mechanism of growth of a crack and to investigate the complex behavior of a crack tip, which is important for that purpose, displacement and strain near the crack where large strains are locally generated by stress concentration are measured. A displacement restraint rubber sheet of a strip fixed at upper and lower ends with an initial crack is used as a test piece. A constant rate displacement load is applied to it, its… More >

  • Open Access


    Damage Failure Analysis of Z-Pins Reinforced Composite Adhesively Bonded Single-Lap Joint

    Yinhuan Yang1,*, Manfeng Gong1, Xiaoqun Xia1, Yuling Tang2

    CMES-Computer Modeling in Engineering & Sciences, Vol.126, No.3, pp. 1239-1249, 2021, DOI:10.32604/cmes.2021.014129

    Abstract In order to study the mechanical properties of Z-pins reinforced laminated composite single-lap adhesively bonded joint under un-directional static tensile load, damage failure analysis of the joint was carried out by means of test and numerical simulation. The failure mode and mechanism of the joint were analyzed by tensile failure experiments. According to the experimental results, the joint exhibits mixed failure, and the ultimate failure is Z-pins pulling out of the adherend. In order to study the failure mechanism of the joint, the finite element method is used to predict the failure strength. The numerical results are in good agreement… More >

  • Open Access


    Damage Assessment in Pultruded GFRP with AE

    D. Crivelli1, M. Guagliano2, A. Monici3

    Structural Durability & Health Monitoring, Vol.8, No.2, pp. 177-192, 2012, DOI:10.3970/sdhm.2012.008.177

    Abstract Pultrusion is a process for manufacturing uniform section composite profiles, which allows to obtain structural elements of virtually any length. The use of E-glass fiber allows to obtain a material with a good rigidity-to-weight and strength-to-weight ratio; these features allowed to use these materials in civil structures, such as poles for anti-noise panels and public lighting, also thanks to their insulating properties. However, the knowledge on the damage development of these materials is still uncertain, and this is slowing down their development.
    For these reasons, an experimental study on pultruded materials aimed at identifying the damage modes has been developed.… More >

  • Open Access


    Experimental Evaluation of Fiber Orientation Based Material Properties of Skeletal Muscle in Tension

    Chetan D. Kuthe, R.V. Uddanwadiker, Alankar Ramteke

    Molecular & Cellular Biomechanics, Vol.11, No.2, pp. 113-128, 2014, DOI:10.3970/mcb.2014.011.113

    Abstract Biomechanical researches are essential to develop new techniques to improve the clinical relevance. Skeletal muscle generates the force which results in the motion of human body, so it is essential to study the mechanical and structural properties of skeletal muscle. Many researchers have carried out mechanical study of skeletal muscle with in-vivo testing. This work aims to examine anisotropic mechanical behavior of skeletal muscle with in vitro test (tensile test). It is important to understand the mechanical and structural behavior of skeletal muscle when it is subjected to external loading; the research aims to determine the structural properties of skeletal… More >

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