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

411
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...
411
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

392
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.
392
Plastic Behavior01:21

Plastic Behavior

345
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
345
Normal Strain under Axial Loading01:20

Normal Strain under Axial Loading

854
Normal strain under axial loading is an important concept in the field of mechanics of materials. Axial loading implies the application of a force along the axis of a material, like a column or bar. This force can either compress or stretch the material. In the context of axial loading, normal strain is the deformation experienced by the material in the direction of the loading force. It's calculated as the change in length divided by the original length of the material. This unitless ratio...
854
Behavior of Concrete Under Compressive Load01:23

Behavior of Concrete Under Compressive Load

373
Concrete exhibits specific behaviors under different compressive loads. Understanding this is crucial for understanding its structural integrity. When concrete undergoes uniaxial compression, it tends to develop cracks that run parallel to the direction of the force. These parallel cracks stem from localized tensile stresses that occur perpendicular to the compression direction. Additionally, angled cracks may appear due to the formation of shear planes.
As the concrete specimen fractures under...
373
Residual Stresses in Bending01:18

Residual Stresses in Bending

377
In the study of elastoplastic members subjected to bending moments, understanding the loading and unloading phases is crucial for assessing material behavior and structural integrity. During the loading phase, as the bending moment increases, the material initially responds elastically, adhering to Hooke's Law, where stress is directly proportional to strain. When the load exceeds the yield strength, plastic deformation occurs, resulting in permanent strain and deformation that remains even...
377

You might also read

Related Articles

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

Sort by
Same author

Capillarity-induced fold localization in film-substrate systems.

Interface focus·2025
Same author

Self-Wrinkling in Polyacrylamide Hydrogel Bilayers.

Langmuir : the ACS journal of surfaces and colloids·2023
Same author

Unlocalized crack initiation and propagation in staggered biomaterials.

Journal of biomechanics·2019
Same author

Manganese-mediated C3-selective direct alkylation and arylation of 2-pyridones with diethyl malonates and arylboronic acids.

The Journal of organic chemistry·2014
Same author

Nickel-catalyzed direct alkylation of heterocycles with α-bromo carbonyl compounds: C3-selective functionalization of 2-pyridones.

Chemistry (Weinheim an der Bergstrasse, Germany)·2013
Same author

A concise access to (polyfluoroaryl)allenes by Cu-catalyzed direct coupling with propargyl phosphates.

Organic letters·2012

Related Experiment Video

Updated: Nov 9, 2025

A Novel Stretching Platform for Applications in Cell and Tissue Mechanobiology
16:46

A Novel Stretching Platform for Applications in Cell and Tissue Mechanobiology

Published on: June 3, 2014

12.0K

Capillary-Induced Wrinkle-to-Fold Transitions Under Biaxial Compression.

So Nagashima1, Akihiro Nakatani1

  • 1Division of Mechanical Engineering, Osaka University, Suita 565-0871, Japan.

Langmuir : the ACS Journal of Surfaces and Colloids
|April 14, 2021
PubMed
Summary

Researchers developed a novel method to induce localized folds on wrinkled surfaces using water droplets. This technique leverages capillary forces to control wrinkle-to-fold transitions in thin film-substrate systems under biaxial compression.

More Related Videos

A Method to Study the Correlation Between Local Collagen Structure and Mechanical Properties of Atherosclerotic Plaque Fibrous Tissue
13:45

A Method to Study the Correlation Between Local Collagen Structure and Mechanical Properties of Atherosclerotic Plaque Fibrous Tissue

Published on: November 11, 2022

2.3K
Engineering Fibrin-based Tissue Constructs from Myofibroblasts and Application of Constraints and Strain to Induce Cell and Collagen Reorganization
12:13

Engineering Fibrin-based Tissue Constructs from Myofibroblasts and Application of Constraints and Strain to Induce Cell and Collagen Reorganization

Published on: October 28, 2013

11.1K

Related Experiment Videos

Last Updated: Nov 9, 2025

A Novel Stretching Platform for Applications in Cell and Tissue Mechanobiology
16:46

A Novel Stretching Platform for Applications in Cell and Tissue Mechanobiology

Published on: June 3, 2014

12.0K
A Method to Study the Correlation Between Local Collagen Structure and Mechanical Properties of Atherosclerotic Plaque Fibrous Tissue
13:45

A Method to Study the Correlation Between Local Collagen Structure and Mechanical Properties of Atherosclerotic Plaque Fibrous Tissue

Published on: November 11, 2022

2.3K
Engineering Fibrin-based Tissue Constructs from Myofibroblasts and Application of Constraints and Strain to Induce Cell and Collagen Reorganization
12:13

Engineering Fibrin-based Tissue Constructs from Myofibroblasts and Application of Constraints and Strain to Induce Cell and Collagen Reorganization

Published on: October 28, 2013

11.1K

Area of Science:

  • Materials Science
  • Soft Matter Physics
  • Surface Engineering

Background:

  • Wrinkles in thin films on soft substrates can transition to folds under compression.
  • Previous studies focused on uniaxial compression, limiting localized control.
  • Inducing controlled folds under biaxial compression remains a challenge.

Purpose of the Study:

  • To present a new method for localized wrinkle-to-fold transitions.
  • To demonstrate control over fold formation in specific areas of wrinkled surfaces.
  • To investigate the role of capillary forces in this transition.

Main Methods:

  • Utilizing water droplets on randomly wrinkled film-substrate systems.
  • Observing the spontaneous emergence of folds at droplet boundaries.
  • Analyzing the effect of water evaporation on wrinkle morphology.
  • Controlling folded area by adjusting droplet volume and number.

Main Results:

  • Radially extended folds instantaneously emerge at droplet boundaries upon contact.
  • Wrinkles beneath the droplet transition into a fold network after water evaporation.
  • Surface regions away from droplets retain their original wrinkle morphology.
  • Fold formation is controllable by droplet parameters.

Conclusions:

  • Capillary forces from water droplets increase local compressive strains, driving the wrinkle-to-fold transition.
  • This method offers a simple, localized approach to fold development in biaxially compressed systems.
  • Achieves controlled fold patterning where conventional methods fail.