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

Deformations in a Transverse Cross Section01:21

Deformations in a Transverse Cross Section

662
When a material is subjected to uniaxial stress, it elongates or contracts in the direction of the applied force, and also undergoes changes in the perpendicular directions. This behavior is crucial for understanding how materials behave under stress and is governed by mechanical properties such as Poisson's ratio v, which measures the ratio of transverse strain to axial strain.
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
662
Papillary Dermis01:11

Papillary Dermis

6.0K
Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen...
6.0K
Deformations in a Symmetric Member in Bending01:18

Deformations in a Symmetric Member in Bending

534
When analyzing the deformation of a symmetric prismatic member subjected to bending by equal and opposite couples, it becomes clear that as the member bends, the originally straight lines on its wider faces curve into circular arcs, with a constant radius centered at a point known as Point C. This phenomenon helps to understand the stress and strain distribution within the member more clearly.
When the member is segmented into tiny cubic elements, it is observed that the primary stress...
534
Elasticity01:12

Elasticity

5.0K
Elasticity is the ability of an object to withstand the effects of distortion and to return to its original size and shape once the forces causing deformation are removed. When an elastic material deforms under the action of an external force, it experiences internal resistance to the deformation. However, if no external force is applied, it returns to its original state.
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
5.0K
Equation of the Elastic Curve01:23

Equation of the Elastic Curve

1.0K
The concept of curvature in plane curves, crucial in structural engineering, defines how sharply a beam bends under load. This curvature is determined using the curve's first and second derivatives.
Consider a cantilever beam with a point load at its free end (for instance, a diving board). When analyzing beam deflection with small slopes, the shape of the beam's elastic curve becomes key. The governing equation for this analysis involves the bending moment and the beam's flexural rigidity,...
1.0K
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity01:15

Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity

622
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
622

You might also read

Related Articles

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

Sort by
Same author

DHDDS-related juvenile parkinsonism is caused by impaired lipid metabolism, glycosylation, and mitochondrial dysfunction, which can be rescued by NAD⁺ treatment.

medRxiv : the preprint server for health sciences·2026
Same author

Ocular involvement in toxic epidermal necrolysis syndrome at Chelsea and Westminster Hospital: a 10-year retrospective analysis and review of current literature.

Eye (London, England)·2026
Same author

Epidemiological Characteristics of the Spine Tumors in a Single Tertiary Centre of Nepal.

Kathmandu University medical journal (KUMJ)·2026
Same author

Knowledge, Attitude and Practice Towards Antimicrobial Resistance and Antimicrobial Adherence among Female Community Health Volunteers Before and After an Educational Intervention.

Kathmandu University medical journal (KUMJ)·2026
Same author

Nonsyndromic Complete Second Branchial Cleft Fistulas: A Clinicosurgical Experience.

Kathmandu University medical journal (KUMJ)·2026
Same author

Phase II Open-Label Randomised Controlled Trial Comparing Oxaliplatin and Cisplatin Based Concurrent Chemoradiotherapy in Locally Advanced Head and Neck Cancers.

Clinical oncology (Royal College of Radiologists (Great Britain))·2026

Related Experiment Video

Updated: Feb 17, 2026

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

8.6K

Cusp-Shaped Elastic Creases and Furrows.

S Karpitschka1, J Eggers2, A Pandey1

  • 1Physics of Fluids Group, Faculty of Science and Technology, Mesa+ Institute, University of Twente, 7500 AE Enschede, Netherlands.

Physical Review Letters
|December 9, 2017
PubMed
Summary

Biological tissue and gel surfaces develop inward folds when deformed. These folds form a universal cusp shape, explained by a new similarity theory and finite deformation elasticity.

More Related Videos

AFM-based Mapping of the Elastic Properties of Cell Walls: at Tissue, Cellular, and Subcellular Resolutions
10:26

AFM-based Mapping of the Elastic Properties of Cell Walls: at Tissue, Cellular, and Subcellular Resolutions

Published on: July 24, 2014

13.5K
Characterizing Mechanical Properties of Primary Cell Wall in Living Plant Organs Using Atomic Force Microscopy
09:52

Characterizing Mechanical Properties of Primary Cell Wall in Living Plant Organs Using Atomic Force Microscopy

Published on: May 18, 2022

2.6K

Related Experiment Videos

Last Updated: Feb 17, 2026

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

8.6K
AFM-based Mapping of the Elastic Properties of Cell Walls: at Tissue, Cellular, and Subcellular Resolutions
10:26

AFM-based Mapping of the Elastic Properties of Cell Walls: at Tissue, Cellular, and Subcellular Resolutions

Published on: July 24, 2014

13.5K
Characterizing Mechanical Properties of Primary Cell Wall in Living Plant Organs Using Atomic Force Microscopy
09:52

Characterizing Mechanical Properties of Primary Cell Wall in Living Plant Organs Using Atomic Force Microscopy

Published on: May 18, 2022

2.6K

Area of Science:

  • Soft matter physics
  • Materials science
  • Biophysics

Background:

  • Growing biological tissues, swelling gels, and compressed rubbers often develop localized inward surface folds.
  • Understanding the morphology and mechanics of these folds is crucial for various scientific and engineering applications.

Purpose of the Study:

  • To investigate the morphology of surface folding in soft gels under controlled deformation.
  • To characterize the geometric properties of the resulting furrows and creases.
  • To develop a theoretical framework explaining the self-folding bifurcation and fold singularity.

Main Methods:

  • A novel experimental setup was designed to deform the surface of a soft gel in a controlled manner.
  • Morphological analysis of surface folding was conducted.
  • Numerical simulations were performed to complement experimental findings.
  • A similarity theory was developed based on finite deformation elasticity.

Main Results:

  • Surface deformation initially leads to sharp furrows with decreasing tip size.
  • Above a critical deformation, furrows bifurcate into inward folded creases with vanishing tip size.
  • Both furrows and creases exhibit a universal cusp shape.
  • The width of the cusp scales as y^{3/2} at a distance y from the tip.

Conclusions:

  • The study reveals a universal mechanism for surface folding in soft materials.
  • A similarity theory successfully captures the singular profiles and predicts fold length.
  • The findings provide insights into the mechanics of surface instabilities in soft matter and biological systems.