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

Non-destructive Tests for Concrete Strength01:12

Non-destructive Tests for Concrete Strength

605
The rebound hammer test, also known as the Schmidt hammer test, is a non-destructive technique for evaluating the hardness of concrete and, indirectly, the strength of concrete. It operates on the principle that the rebound of a spring-driven mass from a concrete surface correlates to the surface's hardness. The device comprises a mass within a tubular housing, a spring mechanism, and a plunger that strikes the concrete. Upon release, the energy imparted to the mass by the spring causes it...
605
Dynamic Modulus of Elasticity of Concrete01:16

Dynamic Modulus of Elasticity of Concrete

1.0K
The dynamic modulus of elasticity assesses how a concrete structure deforms under impact or dynamic loads. It is typically higher than the static modulus of elasticity, measured under slow, steady loading conditions.
The sonic test is a common method to determine the dynamic modulus. In this test, a concrete beam, sized either 6 x 6 x 30 inches or 4 x 4 x 20 inches, is clamped at its center. Vibrations are initiated at one end of the beam by an electromagnetic exciter unit powered by a...
1.0K
Mechanical Characteristics of Steel01:18

Mechanical Characteristics of Steel

1.1K
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
1.1K
Toughness and Hardness of Aggregate01:22

Toughness and Hardness of Aggregate

660
Toughness and hardness are critical properties of aggregate materials used in concrete, particularly on pavement surfaces and industrial flooring subjected to heavy loads. Toughness is defined as the aggregate's resistance to failure by impact and is measured by the aggregate impact value (AIV). For this, the aggregate impact value test is performed, wherein the impact is delivered by a standard hammer, which falls freely under its own weight onto the aggregates. The aggregates fragment in...
660
Stress: General Loading Conditions01:15

Stress: General Loading Conditions

605
To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
605
Applications of Stress01:04

Applications of Stress

692
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...
692

You might also read

Related Articles

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

Sort by
Same author

Decoding Non-Invasive Electroencephalography Signal via a Two-Discriminator Adversarial Network.

Sensors (Basel, Switzerland)·2026
Same author

Objective Emotion Assessment Using a Triple Attention Network for an EEG-Based Brain-Computer Interface.

Brain sciences·2025
Same author

Visible-Light-Induced Acyl Radical Cascade Cyclization of Dienes with Acyl Chlorides to Synthesize Benzo[<i>b</i>]azepin-2-one Derivatives.

The Journal of organic chemistry·2025
Same author

Laboratory earthquakes decipher control and stability of rupture speeds.

Nature communications·2023
Same author

Dynamic failure characteristics of surrounding rocks under different lateral pressure coefficients in deep tunnel transient excavation.

Geomechanics and geophysics for geo-energy and geo-resources·2023
Same author

Structures of the Omicron spike trimer with ACE2 and an anti-Omicron antibody.

Science (New York, N.Y.)·2022
Same journal

Compressed multi-scale entropy and its application in mechanical fault diagnosis.

The Review of scientific instruments·2026
Same journal

Bidirectional drive and multi-resolution adjustment across frequency bands in inertial impact piezoelectric motors via multimodal resonant vibration.

The Review of scientific instruments·2026
Same journal

A magnetic field sensor based on flaky Terfenol-D material and dual fiber grating.

The Review of scientific instruments·2026
Same journal

A novel E-field eight-way cavity combiner for high-power S-band applications.

The Review of scientific instruments·2026
Same journal

Constant radius blade spring suspended bench for vibration isolation.

The Review of scientific instruments·2026
Same journal

Qualification of infrared optical fibers and emitters for a spectrometer for in situ planetary exploration: Results from the TRIS (TRansmission and Illumination System) project.

The Review of scientific instruments·2026
See all related articles

Related Experiment Video

Updated: Feb 17, 2026

Intermediate Strain Rate Material Characterization with Digital Image Correlation
07:59

Intermediate Strain Rate Material Characterization with Digital Image Correlation

Published on: March 1, 2019

7.6K

A dynamic point-load test for quantifying rock dynamic strength parameters.

Changyi Yu1, Wei Yao2, Ying Xu1

  • 1State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China.

The Review of Scientific Instruments
|December 3, 2017
PubMed
Summary
This summary is machine-generated.

This study introduces a dynamic point-load test (PLT) for assessing rock strength under impact. The new method, using a split Hopkinson pressure bar, establishes correlations between dynamic point-load strength and actual rock strength.

More Related Videos

Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction
10:36

Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction

Published on: May 20, 2018

10.1K
Author Spotlight: Enhancing Small Animal Bone Compression Testing for Research
07:52

Author Spotlight: Enhancing Small Animal Bone Compression Testing for Research

Published on: December 1, 2023

2.3K

Related Experiment Videos

Last Updated: Feb 17, 2026

Intermediate Strain Rate Material Characterization with Digital Image Correlation
07:59

Intermediate Strain Rate Material Characterization with Digital Image Correlation

Published on: March 1, 2019

7.6K
Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction
10:36

Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction

Published on: May 20, 2018

10.1K
Author Spotlight: Enhancing Small Animal Bone Compression Testing for Research
07:52

Author Spotlight: Enhancing Small Animal Bone Compression Testing for Research

Published on: December 1, 2023

2.3K

Area of Science:

  • Geotechnical Engineering
  • Rock Mechanics
  • Materials Science

Background:

  • The point-load test (PLT) is a common method for estimating rock strength, suitable for irregular samples.
  • Existing PLT methods are primarily quasi-static, limiting their application in dynamic loading scenarios.
  • There is a need for methods to evaluate rock strength under dynamic conditions relevant to engineering applications.

Purpose of the Study:

  • To develop and validate a dynamic point-load test (PLT) for assessing rock strength under impact loading.
  • To adapt the PLT for dynamic conditions using advanced testing apparatus.
  • To establish correlations between dynamic point-load strength (PLS) and other dynamic rock strength parameters.

Main Methods:

  • A dynamic point-load test (PLT) was developed using a split Hopkinson pressure bar system.
  • Conical steel platens were employed to apply point loads to disc-shaped rock specimens.
  • The pulse shaper technique was utilized to ensure dynamic force balance for quasi-static analysis.

Main Results:

  • The dynamic PLT method was successfully applied to Laurentian granite, a well-characterized rock.
  • The study established a correlation between the dynamic point-load strength (PLS) and the dynamic strength of the tested rock.
  • The flexibility and applicability of the dynamic PLT were demonstrated.

Conclusions:

  • The dynamic point-load test (PLT) provides a viable method for evaluating rock strength under impact conditions.
  • The established correlation between dynamic PLS and dynamic rock strength is valuable for engineering applications.
  • This dynamic testing approach extends the utility of PLT for scenarios involving high-strain-rate loading.