ADVANCED COMPOSITES LETTERS 是一份同行评审、开放获取的期刊出版研究，专注于先进复合材料或结构的科学与工程领域。

Advanced Composites Letters is a peer-reviewed open access journal that publishes research focused on the science and engineering of advanced composites and structures.

《Advanced Composites Letters》是一份经过同行评审的开放获取期刊，专注于先进复合材料及其结构的科学与工程研究。

Advanced Composites Letters

Natural fibre composites are of interest for a wide range of semi-structural applications in the building, construction and automotive sector. For a number of these applications, the evaluation of performance degradation after impact is of some relevance. The present work focused on the influence of fibre volume fraction and fibre surface treatment on the residual load-bearing capability of hemp fibre-reinforced sheet moulding compound (H-SMC) after non-penetrating impacts. Post-impact flexural strength and stiffness of H-SMC decreased linearly with increasing impact energy. At higher impact energy levels, the residual flexural strength of H-SMC improved with increasing fibre volume fraction. However, for the same amount of absorbed energy, the residual strength or damage tolerance capability of glass fibre-reinforced sheet moulding compound was about twice that of H-SMC. Composites based on surface treated hemp fibres showed a slight improvement in residual flexural strength, particularly for systems based on hemp fibres treated with a combined alkaline and silane surface treatment. Surface treated systems showed improved levels of adhesion and increased levels of energy absorption through potential mechanisms such as debonding, pull-out or fibre fibrillation.

Harish K Patel

Ton Peijs

Post-impact damage tolerance of natural fibre-reinforced sheet moulding compound

天然纤维增强片状模塑料的冲击后损伤容限

Due to the difficulty of direct finite-element modeling for honeycomb sandwich panels, it is more common to apply equivalent modeling theories. It is necessary to compare their equivalent precision and then to determine the method with the best equivalent performance so as to prepare for the application in satellite solar arrays. The first 10 natural frequencies are obtained by analyzing the dynamic characteristics of sandwich panel theory model, honeycomb panel theory model, and equivalent panel theory model. The equivalent errors of different equivalent methods are obtained by comparison with the analysis results of real honeycomb panel model. Then, the sandwich panel theory and the Hoff theory with high precision are used to simulate the solar array panel. The two methods are further verified and compared by simulation and experiment. Finally, the sandwich panel theory with the highest accuracy is selected to simulate the vibration response of the solar array panel based on the above work. By comparing the frequency response analysis results with the test results, it is found that the maximum acceleration response error is within 7%, and the corresponding frequency error of the main direction is within 3%. The comparison between random analysis results and test results shows that the root mean square response errors of acceleration in three directions are within 13.7%. It is proved that the sandwich panel theory has high accuracy in the honeycomb structure. Based on the background of a specific space project, this study innovatively applies the test results to compare several typical equivalent theories of honeycomb sandwich panels so as to get a theory with the highest equivalent precision. The final conclusion has been applied to the design of related space products and proved to be feasible. This provides important reference and basis for the structural design of the satellite.

Wei Wang

Haitao Luo

Jia Fu

Haochen Wang

Changshuai Yu

Guangming Liu

Qiming Wei

Shufan Wu

Comparative application analysis and test verification on equivalent modeling theories of honeycomb sandwich panels for satellite solar arrays

卫星太阳翼蜂窝夹层板等效建模理论的比较应用分析与试验验证

Wear of wheels and rails is a major problem in railway transportation industry. Solid lubricants constitute a cost-efficient alternative to control wear and friction at the wheel–rail interface, especially when a fine-tuned balance between traction force and energy consumption is sought. In this work, composite friction modifiers (CFMs) composed of a vinyl ester matrix reinforced with molybdenum disulfide and carbon nanotubes were developed. The total solid additive content was less than a half in comparison with a commercial product available on the market, which was used as a reference. A benchmarking study of the CFM was carried out by means of tribological tests in a twin-disc machine at a contact pressure of 1.1 GPa and different slip values. The results indicated that the developed CFM reduce coefficient of traction by 10% compared to unlubricated conditions that is similar to the reference. However, the total mass loss of steel components due to wear under CFM lubrication was lower than in the reference test.

Juan Camilo Vélez

Jesús Antonio Carlos Cornelio

Robinson Buitrago Sierra

Juan Felipe Santa

Lina Marcela Hoyos-Palacio

Roman Nevshupa

Alejandro Toro

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

碳纳米管复合摩擦改进剂的开发及其在轮轨界面中的应用

In this research, the photocatalytic degradation of cypermethrin using iron-titanium dioxide (Fe-TiO 2 ) nanoparticles supported in a biomaterial was evaluated. The nanoparticles of TiO 2 were synthesized by the green chemistry method assisted by ultrasound and doped by chemical impregnation using Fe +3 :Ti molar ratios of 0, 0.05, 0.075 and 0.1 to make efficient use of direct sunlight ( λ &gt; 310 nm). All nanoparticles were immobilized on the surface of coconut spathe ( Cocos nucifera). The degradation was carried out at room temperature and natural pH in a flat plate solar reactor, on which the composite material was subjected. The concentration of cypermethrin was determined after 12,000 J m −2 of accumulated radiation from gas chromatography–mass spectrometry and the resulting material was characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, ultraviolet–visible diffuse reflectance spectroscopy, and Brunauer-Emmett-Teller (BET) surface area. The best results were achieved with the use of Evonik TiO 2 P-25, Fe:Ti = 0 and Fe:Ti = 0.05 in suspension, with percentages of degradation of cypermethrin of 99.84%, 99.62%, and 100%, respectively. However, the materials supported on the biomaterial of coconut allowed to reach degradation percentages higher than 80%, with the advantage that it minimizes operating costs, as they are not necessarily filtering or centrifuging processes to separate the catalyst.

Ricardo Andrés Solano Pizarro

Adriana Patricia Herrera Barros

Cypermethrin elimination using Fe-TiO<sub>2</sub> nanoparticles supported on coconut palm spathe in a solar flat plate photoreactor

利用椰子佛焰苞负载的Fe-TiO<sub>2</sub>纳米颗粒在太阳能平板光反应器中去除氯氰菊酯

The compressive strength of sulfoaluminate cement-based grouting materials (CBGMs) cannot meet the requirement of repair and reinforcement engineering in the presence of high water-to-binder ratio (w/b) of 0.5-1.2. Using nanotechnology, the mechanical property of the CBGM paste at different ages can be improved and our previous experimental results showed that lithium aluminum layered double hydroxides (LiAl-LDHs) with nanostructure can significantly increase the compressive strength of CBGM paste. In addition to the characteristics of nanomaterials, the performance of nanomaterials is also related to w/b of paste. In this work, the effect of w/b ratio on the compressive strength, hydration process, and products of calcium sulphoaluminate cement (CSA) CBGMs with and without LiAl-LDH was studied. Results indicate that with the increase of w/b from 0.6 to 1.0, the growth rate of compressive strength of CBGM paste with LiAl-LDH enhanced. Moreover, LiAl-LDH enhanced total hydration heat more effectively at a higher w/b and as the w/b increased from 0.6 to 1.0, the growth rate of hydration product boosted, which is the reason why the enhancement ratio of compressive strength of the paste was larger at high w/b.

Haiyan Li

Kuo Yang

Xuemao Guan

Effect of water-to-binder ratio on the properties of CSA cement-based grouting materials with LiAl-LDH

水胶比对含LiAl-LDH的CSA水泥基灌浆材料性能的影响

Abbreviation	Adv. Compos. Lett.
Journal Impact	2.45
Quartiles(Global)	MATERIALS SCIENCE, COMPOSITES(Q3)

ISSN	0963-6935, 2633-366X
h-index	28

Publication Information	Publisher: Adcotec Ltd.，Publishing cycle: Continuous publication，Journal Type: journal，Open Access Journals: Yes
Basic data	Year of publication: 1995，Proportion of original research papers: 0.00%，Self Citation Rate:N.A.， Gold OA Rate: 97.18%
Journal Fees	$2000Details
Average review cycle	网友分享经验：>12周，或约稿
Average recruitment ratio	网友分享经验：容易

Advanced Composites Letters

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Post-impact damage tolerance of natural fibre-reinforced sheet moulding compound

Comparative application analysis and test verification on equivalent modeling theories of honeycomb sandwich panels for satellite solar arrays

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Cypermethrin elimination using Fe-TiO₂ nanoparticles supported on coconut palm spathe in a solar flat plate photoreactor

Effect of water-to-binder ratio on the properties of CSA cement-based grouting materials with LiAl-LDH

Post-impact damage tolerance of natural fibre-reinforced sheet moulding compound

Comparative application analysis and test verification on equivalent modeling theories of honeycomb sandwich panels for satellite solar arrays

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Cypermethrin elimination using Fe-TiO₂ nanoparticles supported on coconut palm spathe in a solar flat plate photoreactor

Effect of water-to-binder ratio on the properties of CSA cement-based grouting materials with LiAl-LDH

Advanced Composites Letters

Journal Citation Format

A journal article with 1 author

A journal article with 2 authors

A journal article with 3 authors

A journal article with 5 or more authors

Books Citation Format

Thesis Citation Format

Web sites Citation Format

Patent Citation Format

Staying up late manually editing references? ivySCI automatically matches journals and helps you generate references with a single click.

Share Submission Experience

Post-impact damage tolerance of natural fibre-reinforced sheet moulding compound

Comparative application analysis and test verification on equivalent modeling theories of honeycomb sandwich panels for satellite solar arrays

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Cypermethrin elimination using Fe-TiO2 nanoparticles supported on coconut palm spathe in a solar flat plate photoreactor

Effect of water-to-binder ratio on the properties of CSA cement-based grouting materials with LiAl-LDH

Post-impact damage tolerance of natural fibre-reinforced sheet moulding compound

Comparative application analysis and test verification on equivalent modeling theories of honeycomb sandwich panels for satellite solar arrays

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Cypermethrin elimination using Fe-TiO2 nanoparticles supported on coconut palm spathe in a solar flat plate photoreactor

Effect of water-to-binder ratio on the properties of CSA cement-based grouting materials with LiAl-LDH

Cypermethrin elimination using Fe-TiO₂ nanoparticles supported on coconut palm spathe in a solar flat plate photoreactor

Cypermethrin elimination using Fe-TiO₂ nanoparticles supported on coconut palm spathe in a solar flat plate photoreactor