A structural viscoelastic model of soft tissues

Area of Science:

• Biomechanics
• Materials Science
• Soft Tissue Engineering

Background:

• Biological soft tissues exhibit complex mechanical behaviors.
• Understanding their viscoelasticity is crucial for accurate modeling.
• Existing models may not fully capture microscopic structural influences.

Purpose of the Study:

• To present a non-linear elastic model for biological soft tissues.
• To extend this model to quasi-linear viscoelasticity.
• To discuss the modeling of rheological behavior at near-zero stress.

Main Methods:

• Development of a non-linear elastic constitutive model.
• Incorporation of microscopic structural considerations.
• Extension of the elastic model to a quasi-linear viscoelastic framework.

Main Results:

• A non-linear elastic model accounting for tissue microstructure is established.
• The model is successfully extended to describe quasi-linear viscoelastic behavior.
• Rheological properties at low stress levels are effectively modeled.

Conclusions:

• The proposed model provides a robust framework for analyzing soft tissue mechanics.
• The inclusion of microstructure enhances the accuracy of viscoelastic predictions.
• This approach is valuable for applications in biomechanics and tissue engineering.