A5077520382- Epoxy Resin Curing Processes
- Synthesis and properties of polymers
- Microwave-Assisted Synthesis and Applications
- Fiber-reinforced polymer composites
- Natural Fiber Reinforced Composites
- Polymer composites and self-healing
- Mechanical Behavior of Composites
- Injection Molding Process and Properties
- Polymer Nanocomposites and Properties
- Concrete Corrosion and Durability
- Rocket and propulsion systems research
- Cellular and Composite Structures
- Spacecraft and Cryogenic Technologies
- Silicone and Siloxane Chemistry
- Structural Behavior of Reinforced Concrete
Central South University
2022-2025
Abstract This study investigates the influence of curing defects on leakage behavior CFRP. A macroscopic homogeneous model incorporating was developed to account for their impact leakage. By combining simulation and experimental methods, relationship between rates analyzed. The results indicate a positive correlation rate porosity. Furthermore, is also influenced by void spacing, where an initial increase in spacing leads rise rate, followed stabilization at later stages. In addition, shows...
Abstract The composite segmented tools, used as the internal mandrel, are crucial in integrated curing process of aerospace tanks. Their precise manufacturing demands stringent requirements. Current studies lack reports on simulation and optimization making it challenging to provide effective guidance for high‐quality This study focuses tools a Φ3.35 m liquid oxygen tank. kinetics equations thermophysical properties T800/epoxy composites were tested fitted. Finite element prediction models...
Vibration pretreatment microwave curing is a high-quality and efficient composite out-of-autoclave molding process. Focusing on interlaminar shear strength, the effects of temperature, time vibration acceleration performance components were analyzed sequentially using orthogonal test design method; scanning electron microscope (SEM) optical digital (ODM) used to analyze void content fiber-resin bonding state specimens under different processes. The results show that influence order process...
Abstract The integrated manufacturing of aerospace composite cryogenic tanks is crucial for enhancing payload efficiency, reducing costs, and leading the industry upgrade. Composite segmented tool, which balances internal support mold surface, must not only meet requirements disassembly demolding but also ensure sufficient stiffness without deformation under loads like winding tension curing shrinkage during tank formation. This article addresses challenge faced by tool with uniformly thick...
As an attractive alternative to the traditional autoclave curing process, microwave has been widely used for manufacturing high-performance composites. However, nonuniform temperature distribution during composite is main problem faced by which limits its application in aerospace industry. This paper studied regulating effects of cavity structure and mechanical optimization methods on uniformity field numerical analysis finite element simulation, octagonal heating device with multi-microwave...
Abstract Compared to composite components prepared by traditional thermal process, microwave‐cured laminates exhibit superior mechanical properties under the same heating cycle, indicating a unique mode that differs from air circulation. To progressively replace curing process with microwave technology in aerospace composites manufacturing field, it is crucial elucidate mechanism of materials. In this study, absorbing performance both carbon fibers and epoxy resins was systematically...
The primary challenge during the secondary bonding process of full-height honeycomb sandwich structures is aramid core’s height shrinkage. This paper systematically investigated evolution behavior core by using a creep testing machine. results showed that out-of-plane compression deformation curve cores mainly divided into three stages: dehumidification stage, pressurization stage and stage. Under conditions high temperature pressure, shrinkage was attributed to dehydration caused moisture...
The vibration pretreatment–microwave curing process can achieve high-quality molding under low-pressure conditions and is widely used in the of resin-based composites. This study investigated effects pretreatment parameters on void content fiber weight fraction T700/TRE231; specifically, their influence interlaminar shear strength impact composite. Initially, an orthogonal experimental design was employed with as optimization target, where acceleration determined primary factor dwell time...