A5072610869- High-Velocity Impact and Material Behavior
- Energetic Materials and Combustion
- High-pressure geophysics and materials
- Structural Response to Dynamic Loads
- Electromagnetic Launch and Propulsion Technology
- Diamond and Carbon-based Materials Research
- Fluid Dynamics Simulations and Interactions
- Laser-Plasma Interactions and Diagnostics
- Advanced ceramic materials synthesis
- Laser-Matter Interactions and Applications
- Granular flow and fluidized beds
- Ion-surface interactions and analysis
- Combustion and Detonation Processes
- Advanced Surface Polishing Techniques
- Laser-induced spectroscopy and plasma
- Heat Transfer and Optimization
- Graphene and Nanomaterials Applications
- Heat Transfer and Boiling Studies
- Heat Transfer Mechanisms
- Textile materials and evaluations
- Particle Dynamics in Fluid Flows
- Adhesion, Friction, and Surface Interactions
- Metal and Thin Film Mechanics
- Microplastics and Plastic Pollution
- Metallurgy and Material Forming
Wuhan University
2025
Pingxiang University
2025
Yancheng Teachers University
2025
China Agricultural University
2025
Hunan Agricultural University
2023-2024
Anhui Agricultural University
2024
University of Science and Technology Beijing
2024
National University of Defense Technology
2013-2023
Anhui University of Finance and Economics
2023
Jiangsu Maritime Institute
2023
Introduction Land fragmentation of smallholder agriculture significantly constrains the adoption rate optimal management practices and sustainable crop production. Methods We developed implemented an innovative model known as Consolidating for Uniform Practice (CLUP), which aimed to foster multi-actor collaboration facilitate large-scale application without altering land ownership. CLUP was in wheat fields North China Plain three consecutive years. Results Compared conventional farmers’...
Metal/polymer reactive materials have been studied and applied in a wide range of ways recent years. This type material is insensitive under normal conditions but reacts violently releases large amount chemical energy high-speed impact or high strain rate loading conditions. Compared with conventional explosives, it has better mechanical properties, its unit mass several times that TNT. In this paper, PTFE/Al/CuO are the main research objects, we assess release abilities through experimental...
The impact resistance of coarse-aggregated layered Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) is investigated numerically with LS-DYNA. Holmquist Johnson (HJC) model employed to describe the dynamic behavior UHPFRC, and effect coarse aggregates reflected in pressure-compaction relation. Mechanical tests are conducted obtain material-related inputs for numerical model, ballistic experiments applied calibrate parameter as well validate simulation results. After valuation,...
The shaped charge tandem warhead is an effective weapon against the ERA (explosive reactive armor). Whether pre-warhead can reliably initiate directly determines entire performance of warhead. existing mostly adopts a metal jet, which effectively initiates ERA, but interferes main jet. This article, on other hand, explores possibility producing using low-density material as liner. nonlinear dynamic analysis software Autodyn-2D used to simulate and compare three kinds jets, including...
Numerical modelling of the complex physical processes such as concrete structures subjected to high-impulsive loads relies on suitable material models appropriate for impact and explosion problems. One theextensive used models, RHT model, contains all essential features materialssubjected high dynamic loading. However, application model requires a set propertiesand parameters without which reliable results cannot be expected. The present paper provides adetailed valuation proposes method...
Metal/fluoropolymer materials are typical reactive materials. Polytetrafluoroethylene (PTFE)/Al/CuO were studied in this research. Scanning electron microscopy (SEM), quasi-static compression, the Split Hopkinson pressure bar test, and drop hammer test used to study mechanical properties induced reaction characteristics of with different Al/CuO thermite contents particle sizes. SEM images samples demonstrate that mixed evenly. The compression results show that, if size PTFE was too small,...
Carbon fiber-reinforced polymer (CFRP) composites have been increasingly used in spacecraft applications. Spacecraft may encounter highenergy-density X-ray radiation outer space that can cause severe damage. To protect from such unexpected damage, it is essential to predict the dynamic behavior of CFRP under radiation. In this study, we developed an in-house three-dimensional explicit finite element (FEM) code investigate responses composite for first time, by incorporating a modified PUFF...
The widespread production and utilization of graphene oxide (GO) raise concerns about its environmental release potential ecological impacts, particularly in agricultural soil. Effective nitrogen (N) management, especially through nitrification inhibitors like dicyandiamide (DCD), might mitigate the negative effects GO exposure on soil microbes via N biostimulation. This study quantified changes physicochemical properties, nitrous (N
This study aimed to investigate the effects of different dietary concentrate-to-forage ratios on slaughter performance, meat quality, rumen fermentation, microbiota and fecal in Tibetan sheep. A total sixty male sheep were equally allocated into three groups based ratios, i.e., 30:70 (C30), 50:50 (C50), 70:30 (C70). Compared with C30 group, fed C70 diet resulted a higher (
Currently, PTFE/Al is widely used in the reactive fragmentation warhead. However, for same explosive yield, fragments usually have a smaller damage-radius than inert because has poor penetration ability and needs an impact-speed up to 1000 m/s stimulate its chemical reaction. To enhance damage power of fragments, six kinds materials (PTFE/Al, PTFE/B, PTFE/Si, PTFE/Al/B, PTFE/Al/Si, PTFE/Al/CuO) based on PTFE were designed studied. Through drop weight system self-designed energy release test...
Hard foreign objects such as bricks, wood, metal materials, and plastics in orchard soil can affect the operational safety of garden machinery. Ground-Penetrating Radar (GPR) is widely used for detection hard due to its advantages non-destructive (NDT), easy portability, high efficiency. At present, degree automatic identification applied soil-oriented object based on GPR falls short industry’s expectations. To further enhance accuracy efficiency detection, we combined intelligent technology...
With the improvement of protection technology, damage power conventional penetrators has become increasingly inferior. Reactive material is a new type energetic material, which strong energy release capabilities under high-velocity-impact conditions. In this paper, reactive materials were put into penetrator, and its penetration characteristics studied. First, penetrator with enhanced lateral effect (PELE) projectile structure better capability was obtained by numerical simulation. Then,...
In order to more realistically reflect the penetrating and crushing process of a PELE (Penetration with Enhanced Lateral Efficiency) projectile, stochastic failure algorithm crack-softening were added corresponding material in this paper. According theoretical analysis two algorithms, parameters (stochastic constant γ, fracture energy Gf, tensile strength σT) determined. Then, four sets simulation conditions ((a) no crack softening, (b) failure, (c) softening (d) failure) designed...
Difficulties in connection with the radiometry measurement of shock temperatures for metals, due to our insufficient knowledge high-pressure thermophysical properties materials, are discussed this paper. The thermal radiation histories from shocked iron film/sapphire interfaces observed. It is found that after passage a wave, relaxation process at metal/window interface not always so rapid available pyrometric system unable respond. Shock temperature experiments show spectral radiance...