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

Elastic Strain Energy for Shearing Stresses01:20

Elastic Strain Energy for Shearing Stresses

137
As discussed in previous lessons, strain energy in a material is the energy stored when it is elastically deformed, a concept crucial in materials science and mechanical engineering. This energy results from the internal work done against the cohesive forces within the material. When a material undergoes shearing stress and corresponding shearing strain, the strain energy density, which is the energy stored per unit volume, is calculated. Within the elastic limit, where the stress is...
137
Deformation of Member under Multiple Loadings01:11

Deformation of Member under Multiple Loadings

130
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
130
Stresses under Combined Loadings01:23

Stresses under Combined Loadings

132
When analyzing a bent tube with a circular cross-section subjected to multiple forces, it is crucial to determine the stress distribution in order to maintain structural integrity under varied load conditions.
The process begins by slicing the tube at critical points and analyzing the internal forces and stress components at these sections, focusing on the centroid. Normal stresses, generated by axial forces and bending moments, are either compressive or tensile and vary across the section from...
132
Residual Stresses01:26

Residual Stresses

189
Residual stresses reside in a structure even after removing the original stress inducer. This phenomenon often arises from varied plastic deformations across different parts of a structure. Consider a rod stretched beyond its yield point. It will not regain its original length due to permanent deformation. Even after load removal, the rod does not entirely lose stress because of uneven plastic deformations, resulting in residual stresses. The computation of these stresses in structures is...
189
Elastic Strain Energy for Normal Stresses01:22

Elastic Strain Energy for Normal Stresses

121
Strain energy quantifies the energy stored within a material due to deformation under loading conditions, a fundamental concept in materials science and engineering. The strain energy can be modeled when a material is subjected to axial loading with uniformly distributed stress. In this scenario, the stress experienced by the material is the internal force divided by the cross-sectional area, and the strain induced is directly proportional to this stress through the modulus of elasticity.
If...
121
Normal Strain under Axial Loading01:20

Normal Strain under Axial Loading

409
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...
409

You might also read

Related Articles

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

Sort by
Same author

Basalt Fibre-Reinforced Polymer Laminates with Eco-Friendly Bio Resin: A Comparative Study of Mechanical and Fracture Properties.

Polymers·2024
See all related articles

Related Experiment Video

Updated: May 14, 2025

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

Continuum Compressive Damage Modelling in Composites Using Genetic Algorithms and Nonlocal Averaging.

Johannes Reiner1, Yun-Fei Fu2

  • 1School of Engineering, Faculty of Science Engineering and Built Environment, Deakin University, Geelong, VIC 3216, Australia.

Polymers
|April 12, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces genetic algorithms (GA) and nonlocal continuum damage models to improve finite element analysis of fibre-reinforced polymers (FRPs). These methods overcome mesh dependencies and parameter calibration issues for accurate progressive damage simulation.

Keywords:
continuum damage mechanicsfinite element analysisgenetic algorithmprogressive damage

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

1.9K
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

13.7K

Related Experiment Videos

Last Updated: May 14, 2025

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
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

1.9K
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

13.7K

Area of Science:

  • Materials Science
  • Computational Mechanics
  • Polymer Engineering

Background:

  • Continuum damage models are widely used for analyzing fibre-reinforced polymers (FRPs) due to their efficiency.
  • Existing models suffer from mesh size/orientation dependency and difficulty in parameter determination.

Purpose of the Study:

  • To address limitations in continuum modelling of progressive damage in FRPs.
  • To develop a robust method for parameter calibration and mesh-independent damage evolution.

Main Methods:

  • Combined genetic algorithms (GA) with nonlocal continuum damage models.
  • Applied GA for objective input parameter calibration.
  • Utilized nonlocal averaging for consistent strain field computation.

Main Results:

  • Successfully calibrated input parameters for nonlocal damage models using GA.
  • Demonstrated mesh-independent damage evolution in FRP simulations.
  • Validated the approach using compact and open-hole compression tests on IM7/8552 composites.

Conclusions:

  • The GA-enhanced nonlocal continuum damage model overcomes mesh dependencies and parameter uncertainties.
  • This approach offers a more reliable and consistent method for simulating progressive damage in FRPs compared to local models.