Simulation Study and Optimization Strategies for Vacuum Infusion of GFRP Hoses Based on Resin Time-Viscosity...

Area of Science:

• Materials Science
• Chemical Engineering
• Composite Materials

Background:

• Thermosetting composite hose manufacturing involves resin infusion.
• Resin viscosity changes over time, impacting fluidity.
• Ignoring viscosity variations leads to voids and poor quality.

Purpose of the Study:

• To analyze the effect of time-dependent resin viscosity on composite hose infusion.
• To develop a simulation model for predicting infusion behavior.
• To propose a strategy for improving impregnation and reducing voids.

Main Methods:

• Established a finite element simulation model.
• Analyzed infusion effects considering temporal resin viscosity changes.
• Developed a variable parameter infusion strategy based on simulation predictions.

Main Results:

• The simulation model accurately predicted infusion behavior influenced by viscosity.
• The variable parameter strategy enhanced resin impregnation.
• Reduced void content in the composite hose was observed.

Conclusions:

• Considering temporal resin viscosity is crucial for effective composite hose infusion.
• The proposed strategy improves impregnation and reduces defects.
• Enhanced infusion leads to better material curing and forming quality.