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 Concept Videos

Castigliano's Theorem: Problem Solving01:14

Castigliano's Theorem: Problem Solving

689
The deflection of a simply supported beam that carries a central point load can be analyzed using structural mechanics principles, particularly by applying Castigliano's theorem. This theorem relates the displacement at the load application point to the partial derivatives of the strain energy in the structure. The simply supported beam with a point load at its center has symmetric reaction forces at the supports, each bearing half of the load. The bending moment at any point along the beam...
689
Applications of Stress01:04

Applications of Stress

366
Consider a structure made of a boom and a rod designed to support a load. These two components are connected by a pin and stabilized by brackets and pins. The boom and the rod are detached from their supports to assess the different stresses imposed on this structure, and a free-body diagram is drawn. Then, all the forces applied, including the load acting on the structure, are identified. The reaction forces exerted on both the boom and the rod are computed using the equilibrium equations.
The...
366
Temperature Dependent Deformation01:12

Temperature Dependent Deformation

170
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
170
Plastic Deformations of Members with a Single Plane of Symmetry01:21

Plastic Deformations of Members with a Single Plane of Symmetry

110
When a structural member undergoes plastic deformation due to bending, it is crucial to understand the position of the neutral axis and the stress distribution. This member, characterized by a single plane of symmetry, exhibits a uniform stress distribution, with negative stress above the neutral axis and positive stress below. Notably, the neutral axis does not align with the centroid of the cross-section. This misalignment is typical in cases where the cross-section is not rectangular or...
110
Statically Indeterminate Problem Solving01:16

Statically Indeterminate Problem Solving

449
Statically indeterminate problems are those where statics alone can not determine the internal forces or reactions. Consider a structure comprising two cylindrical rods made of steel and brass. These rods are joined at point B and restrained by rigid supports at points A and C. Now, the reactions at points A and C and the deflection at point B are to be determined. This rod structure is classified as statically indeterminate as the structure has more supports than are necessary for maintaining...
449
Stresses under Combined Loadings01:23

Stresses under Combined Loadings

175
When analyzing a bent tube with a circular cross-section subjected to multiple forces, it is crucial to determine the stress distribution in order to maintain structural integrity under varied load conditions.
The process begins by slicing the tube at critical points and analyzing the internal forces and stress components at these sections, focusing on the centroid. Normal stresses, generated by axial forces and bending moments, are either compressive or tensile and vary across the section from...
175

You might also read

Related Articles

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

Sort by
Same author

Methodological considerations for evaluating deep learning segmentation models in digital pathology whole-slide images.

Journal of medical imaging (Bellingham, Wash.)·2026
Same author

Reply: Hydrodissection for conduit harvesting: Catch the wave!

JTCVS open·2026
Same author

Can riboflavin offer a novel personalised strategy for maintaining healthy blood pressure in pregnancy in populations globally?

BMJ nutrition, prevention & health·2026
Same author

Gpr75 Deletion in Adipocytes Protects From Diet-Induced Obesity: Changes in Glucose Homeostasis and Inflammatory Responses.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology·2026
Same author

The evolving landscape of lipid mediator research: Emerging findings and observations from the 19th Winter Eicosanoid conference.

Prostaglandins & other lipid mediators·2026
Same author

General commentary: 28-Day oral chronic toxicity study of arctigenin in rats.

Frontiers in pharmacology·2026
Same journal

Computational Determination of Effective Working Length in Experimental Torsion Testing of Long Bones.

Journal of biomechanical engineering·2026
Same journal

Hierarchical Experimental Characterization of the Human Rib Cage for Non-Lethal Projectile Impact Applications.

Journal of biomechanical engineering·2026
Same journal

An in vitro Experimental Model for Investigating Aortic Pressure Dynamics Under Blunt Thoracic Impacts.

Journal of biomechanical engineering·2026
Same journal

Editorial.

Journal of biomechanical engineering·2026
Same journal

Student Paper Competition of the 2025 ASME SB3C Summer Bioengineering Conference.

Journal of biomechanical engineering·2026
Same journal

Biomechanical Principles of Temporal Muscle Activation in Functional Movements: Implications for Stability and Movement Coordination.

Journal of biomechanical engineering·2026
See all related articles

Related Experiment Video

Updated: Jul 19, 2025

Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery
06:18

Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery

Published on: December 6, 2024

606

An Aggregate Sternal Force-Deflection Model.

Brandon Sargent1, Diana Bolanos2, Victor Garcia3

  • 1Department of Mechanical Engineering, Gonzaga University, Spokane, WA 99258.

Journal of Biomechanical Engineering
|August 11, 2023
PubMed
Summary
This summary is machine-generated.

This study models sternal force-deflection behavior using literature data, identifying age-based stiffness changes. Findings reveal distinct stiffness patterns in childhood, adolescence, and adulthood, crucial for chest wall repair implants.

Keywords:
force deflection modelpectus excavatumsternum

More Related Videos

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
09:20

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction

Published on: February 13, 2021

6.5K
Measurement of Liver Stiffness Using Atomic Force Microscopy Coupled with Polarization Microscopy
10:10

Measurement of Liver Stiffness Using Atomic Force Microscopy Coupled with Polarization Microscopy

Published on: July 20, 2022

3.9K

Related Experiment Videos

Last Updated: Jul 19, 2025

Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery
06:18

Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery

Published on: December 6, 2024

606
Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
09:20

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction

Published on: February 13, 2021

6.5K
Measurement of Liver Stiffness Using Atomic Force Microscopy Coupled with Polarization Microscopy
10:10

Measurement of Liver Stiffness Using Atomic Force Microscopy Coupled with Polarization Microscopy

Published on: July 20, 2022

3.9K

Area of Science:

  • Biomechanics
  • Orthopedic Engineering

Background:

  • Understanding sternal biomechanics is vital for designing effective chest wall deformity repair implants.
  • Human growth and variability complicate the determination of a single sternal stiffness measure.

Purpose of the Study:

  • To develop aggregate sternal force-deflection models using empirical data from existing literature.
  • To analyze the influence of patient age and gender on sternal stiffness.

Main Methods:

  • Statistical analysis of empirical data to identify age-based groupings (childhood, adolescence, adulthood).
  • Inclusion of gender as a variable in the statistical models.
  • Application of data jittering to account for human variability and comparison assumptions.

Main Results:

  • Three distinct age groups were identified: childhood (4-10 years), adolescence (11-19 years), and adulthood (26-53 years).
  • Gender showed varying statistical significance across age groups (p-values: 0.068, 0.0611, 0.012).
  • Childhood sternal stiffness is relatively constant, increases during adolescence, and stabilizes in adulthood.

Conclusions:

  • Aggregate sternal force-deflection models can be developed from literature data.
  • Age is a significant factor influencing sternal stiffness, with distinct patterns across developmental stages.
  • These age-specific models are essential for optimizing the design of implants for chest wall reconstruction.