scholarly journals Low-velocity impact response of 3D woven hybrid epoxy composites with carbon and heterocyclic aramid fibres

2021 ◽  
pp. 107314
Author(s):  
Caizheng Wang ◽  
Dandan Su ◽  
Zhifeng Xie ◽  
Ke Zhang ◽  
Ning Wu ◽  
...  
Keyword(s):  
Impact Response ◽  
Epoxy Composites ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Aramid Fibres

scholarly journals QUASI-STATIC INDENTATION AND LOW-VELOCITY IMPACT RESPONSE OF ARAMID/EPOXY COMPOSITES

2018 ◽  
Author(s):  
Stephanie G. Nunes ◽  
Luís Guilherme G. Reichwald ◽  
Wanderley F.A. Júnior ◽  
Andrea Manes ◽  
Sandro C. Amico
Keyword(s):  
Impact Response ◽  
Epoxy Composites ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Static Indentation

Low velocity impact response of R-glass/epoxy composites produced by vacuum infusion

2018 ◽  
Vol 2 (2) ◽  
pp. 89-96
Author(s):  
Álvaro González-Jiménez ◽  
Luís E. Caldeira ◽  
Riccardo Scazzosi ◽  
Andrea Manes ◽  
Sandro C. Amico ◽  
...  
Keyword(s):  
Impact Response ◽  
Epoxy Composites ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Vacuum Infusion

scholarly journals Low Velocity Impact Response and Tensile Strength of Epoxy Composites with Different Reinforcing Materials

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3059 ◽  
Author(s):  
Sebastian Sławski ◽  
Małgorzata Szymiczek ◽  
Jarosław Kaczmarczyk ◽  
Jarosław Domin ◽  
Eugeniusz Świtoński
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Optical Microscope ◽  
Impact Response ◽  
Epoxy Composites ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Reinforcing Material ◽  
The Impact

This paper presents the results of research concerning multilayered epoxy composites reinforced with different materials. The strength of multilayered composites depends, to a large extent, on the reinforcing material. The authors decided to compare the low velocity impact response and perform tensile strength tests on several composites, to ascertain the mechanical properties of the prepared composites. Five different reinforcing materials were provided for the research (two fabrics made from aramid fibers, two fabrics made from carbon fibers and one fabric made from polyethylene fibers). The composites were manufactured by the vacuum supported hand laminating method. The low velocity impact response tests were conducted with the use of a pneumatic launcher. Three strikers with different geometry (conical striker, hemispherical striker and ogival striker) were used. A comparison of the resulting damage to the composites after the impact of the strikers was based on the images obtained using an optical microscope; tensile tests were also performed. The experimental investigation showed significant differences in the mechanical properties of the composites, depending on the applied reinforcing material. It was found that, as a result of the impacts, less damage occurred in the composites which were characterized by a lower Young’s modulus and a higher tensile strength.

Response and failure modes of biaxial warp-knitted flexible composite subject to low-velocity impact

2021 ◽  
pp. 152808372110154
Author(s):  
Ziyu Zhao ◽  
Tianming Liu ◽  
Pibo Ma
Keyword(s):  
Impact Energy ◽  
Linear Density ◽  
Failure Modes ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Minor Effect ◽  
Low Velocity ◽  
Velocity Impact ◽  
Flexible Composites ◽  
The Impact

In this paper, biaxial warp-knitted fabrics were produced with different high tenacity polyester linear density and inserted yarns density. The low-velocity impact property of flexible composites made of polyurethane as matrix and biaxial warp-knitted fabric as reinforcement has been investigated. The effect of impactor shape and initial impact energy on the impact response of flexible composite is tested. The results show that the initial impact energy have minor effect on the impact response of the biaxial warp-knitted flexible composites. The impact resistance of flexible composite specimen increases with the increase of high tenacity polyester linear density and inserted yarns density. The damage morphology of flexible composite materials is completely different under different impactor shapes. The findings have theoretical and practical significance for the applications of biaxial warp-knitted flexible composite.

Low-velocity impact response and breakage characteristics of hollow brittle particles

2021 ◽  
Vol 150 ◽  
pp. 103813
Author(s):  
Zhiqiang Fan ◽  
Tao Suo ◽  
Taoyi Nie ◽  
Peng Xu ◽  
Yingbin Liu ◽  
...  
Keyword(s):  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact
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