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

Behavior of Concrete Under Compressive Load01:23

Behavior of Concrete Under Compressive Load

890
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...
890
Plastic Behavior01:21

Plastic Behavior

792
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...
792
Shearing Stresses in a Beam: Problem Solving01:14

Shearing Stresses in a Beam: Problem Solving

828
A cantilever beam with a rectangular cross-section under distributed and point loads experiences shearing stresses. The analysis begins by identifying the loads acting on the beam. Then, the reactions at the beam's fixed end are calculated using equilibrium equations. The vertical reaction is a combination of the distributed and point loads, while the moment reaction is the sum of their moments. The shear force distribution along the beam, resulting from these loads, is established by creating...
828
Yield Criteria for Ductile Materials under Plane Stress01:25

Yield Criteria for Ductile Materials under Plane Stress

775
In designing structural elements and machine parts using ductile materials, it is crucial to ensure that these components withstand applied stresses without yielding. Yielding is initially determined through a tensile test, which evaluates the material's response to uniaxial stress. However, tensile stress is insufficient when components face biaxial or plane stress conditions This condition requires advanced criteria to predict failure.
The Maximum Shearing Stress Criterion, also known as...
775
Stress-Strain Diagram - Ductile Materials01:24

Stress-Strain Diagram - Ductile Materials

2.6K
The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...
2.6K
Stress-Strain Diagram - Brittle Materials01:24

Stress-Strain Diagram - Brittle Materials

5.4K
Brittle materials, including glass, cast iron, and stone, exhibit unique characteristics. They fracture without considerable change in their elongation rate, indicating that their breaking and ultimate strength are equivalent. Such materials also show lower strain levels at the point of rupture. The failure in brittle materials predominantly results from normal stresses, as evidenced by the rupture created along a surface perpendicular to the applied load. These materials do not display...
5.4K

You might also read

Related Articles

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

Sort by
Same author

Future of dental biomaterials: Gazing into Bob's crystal ball.

The Journal of prosthetic dentistry·2020
Same author

Dental Ceramics for Restoration and Metal Veneering.

Dental clinics of North America·2017
Same author

ADM research guidance papers.

Dental materials : official publication of the Academy of Dental Materials·2017
Same author

ADM guidance-Ceramics: all-ceramic multilayer interfaces in dentistry.

Dental materials : official publication of the Academy of Dental Materials·2017
Same author

ADM guidance-Ceramics: guidance to the use of fractography in failure analysis of brittle materials.

Dental materials : official publication of the Academy of Dental Materials·2017
Same author

Effect of Self-etch Adhesives on Self-sealing Ability of High-Copper Amalgams.

Journal of dentistry (Shiraz, Iran)·2016

Related Experiment Video

Updated: Apr 12, 2026

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography
09:00

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography

Published on: September 29, 2019

13.9K

Investigating failure behavior and origins under supposed "shear bond" loading.

Hassam Sultan1, J Robert Kelly1, Reza B Kazemi1

  • 1School of Dental Medicine University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030-1615, United States.

Dental Materials : Official Publication of the Academy of Dental Materials
|May 19, 2015
PubMed
Summary

Traditional shear bond testing may not accurately assess resin-composite bond strength to dentin. Failure analysis indicates that contact stresses, not bonded area, govern failure, suggesting complex damage accumulation mechanisms.

Keywords:
Bond testingDentinResin-based compositeShear stress

More Related Videos

Cutting Procedures, Tensile Testing, and Ageing of Flexible Unidirectional Composite Laminates
07:53

Cutting Procedures, Tensile Testing, and Ageing of Flexible Unidirectional Composite Laminates

Published on: April 27, 2019

8.9K
Determination of the Mechanical Properties of Flexible Connectors for Use in Insulated Concrete Wall Panels
05:26

Determination of the Mechanical Properties of Flexible Connectors for Use in Insulated Concrete Wall Panels

Published on: October 19, 2022

2.1K

Related Experiment Videos

Last Updated: Apr 12, 2026

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography
09:00

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography

Published on: September 29, 2019

13.9K
Cutting Procedures, Tensile Testing, and Ageing of Flexible Unidirectional Composite Laminates
07:53

Cutting Procedures, Tensile Testing, and Ageing of Flexible Unidirectional Composite Laminates

Published on: April 27, 2019

8.9K
Determination of the Mechanical Properties of Flexible Connectors for Use in Insulated Concrete Wall Panels
05:26

Determination of the Mechanical Properties of Flexible Connectors for Use in Insulated Concrete Wall Panels

Published on: October 19, 2022

2.1K

Area of Science:

  • Biomaterials Science
  • Dental Materials Science
  • Mechanical Engineering

Background:

  • Resin-composite materials are widely used in dental restorations.
  • Accurate assessment of bond strength between resin-composites and dentin is crucial for restoration longevity.
  • Traditional shear bond testing methods are commonly employed but their validity is questioned.

Purpose of the Study:

  • To evaluate the failure behavior of resin-composite cylinders bonded to dentin under shear testing.
  • To analyze failure modes by scaling loads to cylinder radii and examining fracture surfaces.
  • To compare three stress models: bonded area, flat-on-cylinder contact, and cantilevered beam failure.

Main Methods:

  • Resin-composite cylinders were bonded to dentin discs of varying radii (0.79-3.175 mm).
  • Samples underwent shear testing at 1.0 mm/min.
  • Failure stresses were calculated for shear, flat-on-cylinder contact, and cantilevered beam models, followed by fracture-surface analysis.

Main Results:

  • Failure stresses calculated using the flat-on-cylinder contact model correlated best with cylinder radii.
  • Failure originated from the loaded cylinder surface, independent of the bonded area.
  • Contact failure stresses remained consistent across different specimen sizes.

Conclusions:

  • "Shear bond" testing may not accurately reflect the bonded interface's performance.
  • Load/area stress calculations in this context lack physical meaning.
  • Failure mechanisms likely involve non-linear damage accumulation influenced indirectly by the interface.