Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

A dynamic material parameter estimation procedure for soft tissue using a poroelastic finite element model

J P Laible1, D Pflaster, B R Simon

  • 1Department of Civil and Mechanical Engineering, University of Vermont, Burlington 05405.

Journal of Biomechanical Engineering
|February 1, 1994
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Rapid Proteomics to Prospect and Validate Novel Bacterial Metabolism Induced by Environmental Burden.

Methods in enzymology·2017
Same author

Developmental programming, adiposity, and reproduction in ruminants.

Theriogenology·2016
Same author

Childhood trauma, midbrain activation and psychotic symptoms in borderline personality disorder.

Translational psychiatry·2015
Same author

Impulsivity in borderline personality disorder.

Psychological medicine·2015
Same author

The RPTEC/TERT1 cell line models key renal cell responses to the environmental toxicants, benzo[a]pyrene and cadmium.

Toxicology reports·2014
Same author

Efficacy of a part-time work hardening program for persons with low-back pain.

Work (Reading, Mass.)·2014

This study introduces a finite element model and parameter estimation method to assess poroelastic material properties using displacement and force data. The approach offers guidelines for optimizing material property calculations in various experimental setups.

Area of Science:

  • Computational mechanics
  • Biomaterials science
  • Geomechanics

Background:

  • Poroelastic materials exhibit complex mechanical behaviors influenced by fluid flow and solid deformation.
  • Accurate characterization of poroelastic material properties is crucial for applications in biomechanics, civil engineering, and petroleum engineering.
  • Traditional methods for material property assessment can be time-consuming and may not capture the full range of poroelastic responses.

Purpose of the Study:

  • To develop and validate a three-dimensional finite element model coupled with a least squares parameter estimation method.
  • To assess poroelastic material properties by analyzing intradiscal displacement and reactive forces.
  • To provide guidelines for parameter optimization in both load and displacement control experiments.

Main Methods:

Related Experiment Videos

  • Development of a three-dimensional finite element model for poroelastic media.
  • Coupling the finite element model with a least squares parameter estimation technique.
  • Application and testing of the method on a representative problem with simulated and real data, including random variations.

Main Results:

  • The coupled model effectively estimates poroelastic material properties.
  • Sequential optimization on different parameter groups demonstrated superior convergence properties.
  • Guidelines for selecting initial parameter values were established, differing for load versus displacement control experiments.

Conclusions:

  • The presented method provides a robust framework for assessing poroelastic material properties.
  • Understanding the objective function is key to selecting appropriate starting parameters for optimization.
  • The optimization scheme is robust to random variations in experimental data, enhancing its practical applicability.