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

Fiber Reinforced Concrete01:22

Fiber Reinforced Concrete

71
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
71
Reinforcements in Concrete01:25

Reinforcements in Concrete

79
Reinforced concrete is a composite material used extensively in construction, combining the compressive strength of concrete with the tensile strength of steel. This synergy is essential as concrete, while excellent at resisting compression, is weak under tension. Steel bars, or rebars, are embedded in the concrete to handle these tensile forces. The choice of steel is strategic; it shares a similar coefficient of thermal expansion with concrete, which ensures uniformity in response to...
79
Non-destructive Tests for Concrete Strength01:12

Non-destructive Tests for Concrete Strength

113
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...
113
Behavior of Concrete Under Compressive Load01:23

Behavior of Concrete Under Compressive Load

149
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...
149
Compacting Factor test01:22

Compacting Factor test

119
The compacting factor test is a method used to assess the workability of concrete. It is  especially suitable for concrete mixes containing aggregates up to one and a half inches in size. This test involves specialized equipment consisting of two truncated cone-shaped hoppers and a cylinder, all with polished interior surfaces to minimize friction.
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
119
Strength of Cement01:20

Strength of Cement

126
Strength tests for cement are not performed directly on neat cement paste due to difficulty in obtaining consistent, reliable specimens. Instead, cement is typically tested in the form of cement-sand mortar.
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
126

You might also read

Related Articles

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

Sort by
Same author

Using Magnesium and Magnesium-Based Alloys as a Novel Biomaterial to Create Medical Devices by AM Techniques-A Review.

Materials (Basel, Switzerland)·2026
Same author

Predictive In Vitro Diagnostic Screening of Strontium-Enriched Biodegradable Mg-Ca Alloys for Emerging Dental Applications.

Diagnostics (Basel, Switzerland)·2026
Same author

Comparative Wear Evaluation of Pure Zn, Zn-Mg and Zn-Mg-Y Alloys Using Mass Loss Measurements and Optical Profilometry.

Materials (Basel, Switzerland)·2026
Same author

Enamel Remineralization Potential of Conventional and Biomimetic Toothpaste Formulations: A Comparative In Vitro Study.

Dentistry journal·2026
Same author

Compositional Effects of the Structure and Properties of 3D Printed Stratified rPET/rPETG Shape Memory Composites.

Polymers·2026
Same author

Ultrastructural and Immunohistochemical Alterations in Muscle and Vascular Tissues in Patients with Omphalocele.

International journal of molecular sciences·2026

Related Experiment Video

Updated: Jun 7, 2025

A Testing Platform for Durability Studies of Polymers and Fiber-reinforced Polymer Composites under Concurrent Hygrothermo-mechanical Stimuli
07:15

A Testing Platform for Durability Studies of Polymers and Fiber-reinforced Polymer Composites under Concurrent Hygrothermo-mechanical Stimuli

Published on: December 11, 2014

13.8K

A New Method for Compression Testing of Reinforced Polymers.

Ciprian Ionuț Morăraș1, Dorin Husaru2, Viorel Goanță1

  • 1Mechanical Engineering, Mechatronics and Robotics Department, Mechanical Engineering Faculty, "Gheorghe Asachi" Technical University of Iasi, 700050 Iasi, Romania.

Polymers
|November 9, 2024
PubMed
Summary

Compressive testing of glass fiber-reinforced polymer (GFRP) requires specialized methods to prevent buckling and accurately measure Poisson's ratio. A new technique using T-type rosettes determined this ratio to be 0.14, with finite element analysis validating experimental results.

Keywords:
FEAGFRPPoisson’s ratioSEM analysiscomposite materialcompression testforce eccentricity

More Related Videos

Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process
09:54

Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process

Published on: June 30, 2023

2.0K
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

8.2K

Related Experiment Videos

Last Updated: Jun 7, 2025

A Testing Platform for Durability Studies of Polymers and Fiber-reinforced Polymer Composites under Concurrent Hygrothermo-mechanical Stimuli
07:15

A Testing Platform for Durability Studies of Polymers and Fiber-reinforced Polymer Composites under Concurrent Hygrothermo-mechanical Stimuli

Published on: December 11, 2014

13.8K
Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process
09:54

Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process

Published on: June 30, 2023

2.0K
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

8.2K

Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Composite Materials

Background:

  • Compressive testing of thin composite plates is challenging due to buckling.
  • Traditional optical methods like digital image correlation (DIC) and strain rosettes are often unsuitable for these tests.
  • Accurate determination of material properties like Poisson's ratio is crucial for composite applications.

Purpose of the Study:

  • To develop and validate a reliable method for compressive testing of glass fiber-reinforced polymer (GFRP) specimens.
  • To accurately determine the Poisson's ratio of GFRP using a novel specimen design.
  • To investigate the influence of force eccentricity and manufacturing defects on stress distribution using finite element analysis (FEA).

Main Methods:

  • Compression tests were performed using the ASTM D695 (Boeing version) and a newly proposed method.
  • The new method utilized special specimens enabling the bonding of T-type rosettes to measure Poisson's ratio.
  • Scanning Electron Microscopy (SEM) was used to analyze failure surfaces.
  • Finite element analysis (FEA) was employed to model stress distribution under various loading conditions, including eccentric forces and asymmetrical layer thicknesses.

Main Results:

  • The novel method successfully determined the Poisson's ratio of GFRP to be 0.14.
  • FEA results showed a small error (6.52% for stress, 4.76% for strain) compared to experimental data for uniformly loaded specimens.
  • Force eccentricity significantly impacted stress distribution, causing substantial increases in maximum and decreases in minimum stress.
  • FEA analysis of asymmetrical outer resin layers highlighted the sensitivity of stress distribution to manufacturing defects.

Conclusions:

  • The proposed method offers a viable alternative for compressive testing of GFRP, enabling accurate Poisson's ratio determination.
  • Centric application of the compression force is critical to avoid non-uniform stress distributions and ensure reliable test results.
  • FEA is a valuable tool for understanding stress concentrations and the impact of defects in composite materials under compression.