Reinforcement

Mục tiêu nghiên cứu luận văn nhằm nghiên cứu phương pháp gia cường tấm CFRP trên dầm thép chữ I và sử dụng tấm gia cường phù hợp nhằm tăng cường khả năng kháng uốn của cấu kiện; Phân tích và tính toán để dự đoán sự phát triển khả năng kháng uốn của dầm gia cường tấm CFRP và dầm chưa được gia cường.

126p mucnang555 02-02-2024 15 3   Download

Detailed objectives of this study are: to analyze the risk of failure and probability of failure of existing reinforced concrete bridges qualitatively and quantitatively; to consider the effects of interactions among various deterioration parameters and among bridge components on system failure; to identify major durability related distress mechanisms of deterioration of reinforced concrete bridges and model the subsequent risk of failure of bridge system;…

163p runthenight07 01-03-2023 8 3   Download

The main aim of this study is to investigate utilising root-like architectures to improve the interfacial strength of pin-integrated hybrid composite-metal structures. Joints are critical elements in aircraft structures and require special consideration due to their vital role in the structural integrity of airframes. Although bonded and bolted systems are used commonly in engineering applications, pinning technologies have shown tremendous potential for hybrid joints.

198p runthenight04 02-02-2023 6 2   Download

In this thesis, focus on the wireless links between devices equipped by deployed operating personnel and intermediary access point infrastructure. We use multi-radio (MR) platforms, wireless devices with multiple and diverse transceiver technologies, to produce robust and reliable links through adaptive control of available transceivers. Primarily, we study the application of intelligent control techniques, namely reinforcement learning (RL), for adaptive control over diverse transceivers to achieve the desired robustness and reliability under dynamic environmental conditions.

185p runthenight04 02-02-2023 7 2   Download

The main focus of this research is the composite comparison of steel fiber, polypropylene fiber and basalt fiber as it is a new category of hybrid fiber reinforcement in high performance high volume flyash concrete. Also many other researchers have studied incorporating individual fibers in high volume flyash concrete to improve the mechanical properties.

165p runthenight04 02-02-2023 5 2   Download

The aim of this project was to design, fabricate and characterise multifunctional structural composites incorporating phase change materials for thermal management applications. The specific research objectives to achieve this goal were formulated as follows: Investigate effective methods to integrate microencapsulated PCMs into glass fibrereinforced epoxy composites; Evaluate the mechanical properties of micro-PCMs enhanced FRP composites and investigate associated failure mechanisms; Study the thermal management effectiveness of micro-PCMs enhanced FRP composites.

125p runthenight04 02-02-2023 11 3   Download

Steel fiber reinforced concrete (SFRC) is a multiple-composite material developed during the early 1970s. In SFRC, short steel fibers are randomly distributed in concrete. Steel fibers can prevent the development of micro-cracks inside the concrete and reduce the expansion and development of the macro-cracks, thus enhance mechanical performance of SFRC. However, there is lack of studies on the influence of flowability of fresh SFRC on the steel fiber distribution patterns and mechanical properties of hardened SFRC.

85p runthenight04 02-02-2023 6 4   Download

Luận văn "Điều khiển tắc nghẽn mạng internet bằng deep reinforcement learning" được chia làm các phần sau: Chương 1 sẽ nói khái quát về cấu trúc mạng internet; điều khiển tắc nghẽn và các các cơ chế điều khiển tắc nghẽn; học tăng cường và học tăng cường sâu; Chương 2 sẽ giới thiệu các nghiên cứu liên quan về 2 hướng tiếp cận rule-based và ML-based. Chương 3 sẽ đề xuất giải pháp và đánh giá hiệu năng.

53p matroinho2510 08-11-2022 20 7   Download

The objective of the research is to evaluate combination ability of nano additive with carbon black reinforced for rubber and rubber blend; create rubber nanocomposite materials with a high quality, solvent durability and sustainability in the naturally humid environment.

27p capheviahe27 23-02-2021 27 3   Download

Successful fabrication of polymer nanocomposite on the basis of PA6, PC thermoplastics, and CNT reinforcement to effectively apply the material system to the production of body protection equipment for the army forces.

28p capheviahe27 23-02-2021 15 2   Download

Manufacture composite based on epoxy reinforced by glass fiber with organ – modified nanosilica using organotitanate curing agent that have good mechanical strength, thermal stability, flame restraint ability; improve the toughness of epoxy resin by incorporating reinforcing agent such as organ – modified nanosilica and glass fiber with appropriate manufacturing condition and ratio.

28p capheviahe26 25-01-2021 30 3   Download

To establish the behavior model of the MIs and to employ this model to determine the seismic behavior of infilled frames; to study how to control the failure mechanisms of reinforced concrete (RC) frames under seismic actions, considering the interaction between the frame and the MIs.

27p kequaidan7 01-09-2020 30 2   Download

Determine the coefficient of water permeability, waterproofing marks, chloride ion diffusion coefficients of some types of concrete commonly used in bridge construction subjected to pre-compressive and direct-compression loads. Develop a predictive model for life expectancy using reinforced concrete bridges taking into consideration the effect of the load according to the criteria of initial corrosion of reinforcement in concrete. Application of life expectancy for the structure of reinforced concrete bridges.

27p kequaidan7 01-09-2020 30 2   Download

Epoxy resin blended with Unsaturated polyester resin and filled with TiO2 filler. ultrasonic mixing process. TiO2 nanoparticles were used as reinforcement in prepared by cast molding method with filler volume fractions (0%,1%, 2%, and 3% ).

10p lucastanguyen 01-06-2020 12 2   Download

In this paper, the thermal properties of GFRP, CFRP, and Carbon and Glass fibers reinforced epoxy hybrid composite will be studied. The composites using are all unidirectional.

12p lucastanguyen 01-06-2020 16 4   Download

The present work deals with a simple approach which predicts the optimum setting of process parameters of drilling operation on Polymer Based Glass Fiber (PBGF) composite.

9p lucastanguyen 01-06-2020 21 3   Download

The study was intended to evaluate the effect of reinforcement percentage on the deformation behaviour. The mechanical properties like hardness, tensile behavior, modulus of elasticity, yield stress have been carried out.

6p lucastanguyen 01-06-2020 18 3   Download

For this study, different volume fraction (vol.%) of particulate alumina (Al2O3) reinforced aluminium alloy (Al 6061) with 5 vol.%, 15 vol.% and 25 vol.% are produced by powder metallurgy method. These samples were subjected to biaxial stresses in order to investigate the behaviour of the metal matrix composites (MMCs). Microstructure analysis on the individual sample before and after loading was performed under scanning electron microscopy. The small particles of 2 µm in size have exhibited strong interfacial bonding with the matrix.

15p 12120609 01-06-2020 10 0   Download

A new composite material with neutron radiation shielding properties is presented. This fiber reinforced concrete material incorporates basalt-boron fiber, with different concentrations of boron oxide in fiber, and is applicable to nuclear energy and nuclear waste management.

8p christabelhuynh 29-05-2020 16 0   Download

The list of nuclei deserving new TAGS measurements has been updated recently in the frame of IAEA working groups. The issues listed above impact in the same way the predicted energy spectra of the antineutrinos from reactors computed with the summation method, the interest of which has been recently reinforced by the Daya Bay latest publication.

8p christabelhuynh 29-05-2020 7 1   Download