[Finite element method simulating bursting process of multi-chamber flexible package infusion bag]

Area of Science:

• Materials Science
• Mechanical Engineering
• Biomedical Engineering

Background:

• Experimental methods for optimizing infusion bag configuration and manufacturing are inefficient and costly.
• Existing methods struggle with multi-parameter research, hindering design improvements.

Purpose of the Study:

• To develop a more efficient and cost-effective method for simulating infusion bag behavior.
• To accurately model stress distribution and deformation under external loads.
• To optimize infusion bag design and manufacturing techniques.

Main Methods:

• A fluid cavity-based finite element method was developed.
• Numerical models of infusion bags with varying sizes were created.
• Fluid-solid coupling deformation was simulated using ABAQUS software.
• Peeling strength from adhesion tests served as the failure criterion.

Main Results:

• The finite element method accurately predicted stress distribution and deformation.
• Simulations aligned with experimental burst test data, considering manufacturing variations.
• The method proved effective for analyzing infusion bag performance.

Conclusions:

• The fluid cavity-based finite element method offers an accurate and efficient alternative to experimental testing.
• This approach facilitates the optimization of multi-chamber infusion bag design and manufacturing.
• The method promises significant cost reduction and improved research efficiency.