Investigation of thermo-mechanical coupled behavior within irradiated biological tissues with temperature-dependent properties

The thermo-mechanical coupled behavior of biological tissues excited by a transient heating has been studied in this paper, in which the temperature-dependent physical properties are considered. A non-linear bio-thermo-mechanical coupled model with variable physical parameters has been proposed firs...

Full description

Saved in:
Bibliographic Details
Published in:Mechanics of advanced materials and structures 2024-08, Vol.31 (15), p.3174-3184
Main Authors: Wang, Y. Z., Lu, X. Y., Wang, Z., Zheng, W. B.
Format: Article
Language:English
Subjects:
Bio-thermo-mechanics
Bioaccumulation
Biological properties
biological tissues
dual-phase lags
Finite difference method
Laser beam heating
laser heating
Normal stress
Numerical models
Parameters
Physical properties
Radiation damage
Spatial distribution
Temperature dependence
temperature-dependent properties
thermal damage
Thermomechanical properties
Tissues
Transient heating
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The thermo-mechanical coupled behavior of biological tissues excited by a transient heating has been studied in this paper, in which the temperature-dependent physical properties are considered. A non-linear bio-thermo-mechanical coupled model with variable physical parameters has been proposed firstly in the context of the generalized theory with the dual-phase relaxation mechanism. An effective procedure constructed on an explicit finite difference scheme is then implemented to solve this non-linear model numerically. On this basis the thermo-mechanical coupled response and relative thermal damage within a skin tissue irradiated by a pulse laser has been explored. The temporal and spatial distributions of each physical field resulting from various cases have been obtained and illustrated. The results stated that the thermo-mechanical interaction induced by a laser heating would be inhibited by temperature-dependent physical parameters and this inhibition is more significant on the tissue displacement and normal stresses than tissue temperature. The thermal damage is also inhibited when the temperature dependence is considered and the time that healthy tissues can be tolerated would be a larger extension for its accumulative effect with tissue temperature.
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2023.2170499