A large deformation multiphase continuum mechanics model for shock loading of soft porous materials

ZT Irwin, JD Clayton… - International Journal for …, 2024 - Wiley Online Library
A large deformation, coupled finite‐element (FE) model is developed to simulate the
multiphase response of soft porous materials subjected to high strain‐rate loading. The …

Universal phase-field mixture representation of thermodynamics and shock-wave mechanics in porous soft biologic continua

JD Clayton - Physical Review E, 2024 - APS
A continuum mixture theory is formulated for large deformations, thermal effects, phase
interactions, and degradation of soft biologic tissues suitable at high pressures and low to …

Analysis of shock waves in a mixture theory of a thermoelastic solid and fluid with distinct temperatures

JD Clayton - International Journal of Engineering Science, 2022 - Elsevier
The continuum theory of mixtures is used to describe a medium consisting of a solid phase
and fluid phase, both compressible and attributed distinct deformation, temperature, entropy …

A constitutive model for lung mechanics and injury applicable to static, dynamic, and shock loading

JD Clayton, AD Freed - Mechanics of Soft Materials, 2020 - Springer
A continuum model for lung parenchyma is constructed. The model describes the
thermomechanical response over a range of loading rates—from static to dynamic to shock …

A constitutive framework for finite viscoelasticity and damage based on the Gram–Schmidt decomposition

JD Clayton, AD Freed - Acta Mechanica, 2020 - Springer
A novel thermodynamic framework for the continuum mechanical response of nonlinear
solids is described. Large deformations, nonlinear hyperelasticity, viscoelasticity, and …

Digital Multiphase Composites via Additive Manufacturing

LT Smith, RB MacCurdy - Advanced Materials, 2024 - Wiley Online Library
Mechanical properties of traditional engineering materials are typically coupled to each
other, presenting a challenge to practitioners with multi‐dimensional material property …

Modeling lung tissue dynamics and injury under pressure and impact loading

JD Clayton - Biomechanics and Modeling in Mechanobiology, 2020 - Springer
A nonlinear viscoelastic model for the lung is implemented and evaluated for high-rate
loading. Principal features of the model include a closed-cell approximation of the bulk …

A nonlinear thermoelastic-viscoelastic continuum model of lung mechanics for shock wave analysis

JD Clayton, RJ Banton, AD Freed - AIP conference proceedings, 2020 - pubs.aip.org
A finite deformation constitutive model for lung parenchyma—including stiffness
contributions from dense soft tissue, surface tension, and internal air pressure—is …

Stabilized low-order finite-element formulation for static and dynamic simulation of saturated soils based on a hybrid integration scheme

Q Hao, J Yu, X Wang, Y Yu, B Zhang - Computers and Geotechnics, 2023 - Elsevier
This paper presents a stabilized linear finite-element formulation for three-dimensional (3D)
elastoplastic static and dynamic coupled analyses of the soil skeleton and pore fluid. The …

A Large Deformation Multiphase Continuum Mechanics Model for Shock Loading of Lung Parenchyma. Part I: Theory

ZT Irwin, RA Regueiro, JD Clayton - 2023 - apps.dtic.mil
A finite-strain theory of a biphasic mixture, with coupled pore fluid flow and solid skeleton
deformation, of a soft porous material has been developed for high strain-rate dynamic …