Results 1 to 10 of about 957,030 (191)

Low-velocity impact behaviour of fibreglass-aluminium laminates [PDF]

Composites Part A: Applied Science and Manufacturing, 2004
Low-velocity impact tests were performed on fibreglass–aluminium composites made of 2024 T3 sheets and S2-glass/epoxy prepreg layers, using an instrumented falling weight machine. For comparison purposes, similar tests were carried out on monolithic 2024
CAPRINO, GIANCARLO, DEL LUONGO S., SPATARO G   +2 more
core   +3 more sources

Low Velocity Impact Monitoring of Composite Tubes Based on FBG Sensors [PDF]

Sensors
Carbon 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, Linjiao Lu, Tao Shen, Jianke Du   +3 more
doaj   +2 more sources

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
doaj   +1 more source

Analysis of impact damage characteristics of marine carbon fiber composite laminates embedded with PEI film

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, Zhixin HUANG, Tian ZHAO, Ying LI   +3 more
doaj   +1 more source

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.
openaire   +1 more source

Visualization and quantification of low-velocity impact damage of three-dimensional braided CFRP composites by micro-computed tomography

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
doaj   +1 more source

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, Hariharan S Subramanian   +1 more
doaj   +1 more source

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
doaj   +1 more source

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, LU Pengcheng, CAI Hua, ZHANG Jingxuan   +3 more
doaj   +1 more source

Low velocity impact modeling in composite laminates capturing permanent indentation [PDF]

, 2012
This paper deals with impact damage and permanent indentation modeling. A numerical model has been elaborated in order to simulate the different impact damage types developing during low velocity/low energy impact.
Barrau, Jean-Jacques, Bouvet, Christophe, Rivallant, Samuel   +2 more
core   +4 more sources