TY - JOUR
T1 - Temperature-dependent thermomechanical modeling of soft tissue deformation
AU - Zhang, Jinao
AU - Hills, Jeremy
AU - Zhong, Yongmin
AU - Shirinzadeh, Bijan
AU - Smith, Julian
AU - Gu, Chengfan
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Modeling of thermomechanical behavior of soft tissues is vitally important for the development of surgical simulation of hyperthermia procedures. Currently, most literature considers only temperature-independent thermal parameters, such as the temperature-independent tissue specific heat capacity, thermal conductivity and stress-strain relationships for soft tissue thermomechanical modeling; however, these thermal parameters vary with temperatures as shown in the literature. This paper investigates the effect of temperature-dependent thermal parameters for soft tissue thermomechanical modeling. It establishes formulations for specific heat capacity, thermal conductivity and stress-strain relationships of soft tissues, all of which are temperature-dependent parameters. Simulations and comparison analyses are conducted, showing a different thermal-induced stress distribution of lower magnitudes when considering temperature-dependent thermal parameters of soft tissues.
AB - Modeling of thermomechanical behavior of soft tissues is vitally important for the development of surgical simulation of hyperthermia procedures. Currently, most literature considers only temperature-independent thermal parameters, such as the temperature-independent tissue specific heat capacity, thermal conductivity and stress-strain relationships for soft tissue thermomechanical modeling; however, these thermal parameters vary with temperatures as shown in the literature. This paper investigates the effect of temperature-dependent thermal parameters for soft tissue thermomechanical modeling. It establishes formulations for specific heat capacity, thermal conductivity and stress-strain relationships of soft tissues, all of which are temperature-dependent parameters. Simulations and comparison analyses are conducted, showing a different thermal-induced stress distribution of lower magnitudes when considering temperature-dependent thermal parameters of soft tissues.
KW - Pennes' bio-heat equation
KW - soft tissue thermomechanical deformation
KW - temperature-dependence
KW - thermal ablation
KW - Thermomechanical response
UR - http://www.scopus.com/inward/record.url?scp=85056220423&partnerID=8YFLogxK
U2 - 10.1142/S0219519418400213
DO - 10.1142/S0219519418400213
M3 - Article
AN - SCOPUS:85056220423
SN - 0219-5194
VL - 18
JO - Journal of Mechanics in Medicine and Biology
JF - Journal of Mechanics in Medicine and Biology
IS - 8
M1 - 1840021
ER -