Results 1 to 10 of about 187,010 (148)
Low Velocity Impact Monitoring of Composite Tubes Based on FBG Sensors [PDF]
SensorsCarbon fiber reinforced composites (CFRP) are susceptible to hidden damage from low velocity external impacts during their service life. To ensure the proper monitoring of the state of the composites, it is crucial to predict the location of an impact ...
Shengsheng Huan +3 more
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Impact Velocity Measurement Method Based on Trajectory and Impact Position
Sensors, 2022 The impact velocity of falling weight is an instantaneous quantity. Currently, measurement of impact velocity relies on high-speed sensors to capture the moment of impact. The trajectory-position measurement method (TPMM) is proposed in this study.
Hui Liu, Jingfan Wang, Yuantao Wu
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Zhongguo Jianchuan Yanjiu, 2023 ObjectivesThe addition of thermoplastic phase materials between the layers of traditional marine composite laminates can effectively improve the impact resistance properties of marine composites.
Guanhua WANG +3 more
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Low velocity impact on polymeric foams [PDF]
Journal of Cellular Plastics, 2010 The effect of the impactor nose shape on the penetration behavior of polymethacrylimide foams is investigated in the velocity range of 4—8 m/s. It is observed from experimental results that penetration load depends on the geometry of the impactor and the density of the foam.
Flores-Johnson, E. A., Li, Q. M.
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Heliyon, 2022 In this paper, the low-velocity impact response and damage of three-dimensional five-directional (3D5d) braided carbon/epoxy composites under different energies (30 J, 65 J, 100 J) are studied.
Mengyao Sun, Diantang Zhang, Kun Qian
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An Experimental Investigation on Low-velocity Impact Response of Abaca/Epoxy Bio-composite
Journal of Natural Fibers, 2022 在汽車行業的許多結構和非結構應用中，NFRC（天然纖維增強複合材料）被證明是現有玻璃/碳纖維增強複合材料的潛在材料替代品。本文介紹了兩種不同取向 [90°/0°/0°/90°] 和 [45°/0°/0°/45 °]，使用錐形衝擊器承受 10.24 J 的衝擊能量。基於作為能量吸收處理的力-時間響應和衝擊能量-時間歷史來評估它們的性能和損傷特性。還進行了掃描電子顯微鏡 (SEM) 分析以研究斷裂表面的微觀結構信息並與最可能的故障原因相關聯。照片和 SEM 圖像證實了纖維主要失效。實驗結果表明，與交叉層相比，
Mahaboob Subhani Shaik +1 more
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Low Velocity Impact Localization of Variable Thickness Composite Laminates
Sensors, 2021 Variable thickness composite laminates (VTCL) are susceptible to impact during use and may result in irreparable internal damage. In order to locate the internal impact damage of complex composite structures and monitor the impact signals of VTCL at the ...
Guan Lu, Yuchen Zhou, Yiming Xu
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Low-velocity impact resistance of repaired honeycomb sandwich composites
Journal of Aeronautical Materials, 2022 The honeycomb core replacement scarf repair method was used to repair the one side face-sheet and honeycomb core damage of aluminum honeycomb sandwich composite plate.
LI Na +3 more
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Mechanical Engineering Journal, 2016 In this paper the low-velocity and high-velocity impact damage in a carbon fiber reinforced plastic (CFRP) laminate with toughened interlayers was experimentally characterized.
Rozaini OTHMAN +2 more
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Error-Index-Based Algorithm for Low-Velocity Impact Localization
Shock and Vibration, 2022 Flat plates and cylindrical shells are commonly used in large equipment. To locate the low-velocity impact points in these structures, this study proposes an error-index-based algorithm for impact localization.
Tao Peng +4 more
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