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

Plastic Behavior01:21

Plastic Behavior

463
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...
463
Plastic Deformations01:14

Plastic Deformations

349
It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
349

You might also read

Related Articles

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

Sort by
Same author

Fatigue Crack Growth in Metallic Materials (Volume II).

Materials (Basel, Switzerland)·2026
Same author

Fatigue Crack Growth in Metallic Materials.

Materials (Basel, Switzerland)·2023
Same author

FCG Modelling Considering the Combined Effects of Cyclic Plastic Deformation and Growth of Micro-Voids.

Materials (Basel, Switzerland)·2021
Same author

Revisiting Classical Issues of Fatigue Crack Growth Using a Non-Linear Approach.

Materials (Basel, Switzerland)·2020

Related Experiment Video

Updated: Dec 26, 2025

DUCT: Double Resin Casting followed by Micro-Computed Tomography for 3D Liver Analysis
12:39

DUCT: Double Resin Casting followed by Micro-Computed Tomography for 3D Liver Analysis

Published on: September 28, 2021

3.6K

Numerical Study on the Variability of Plastic CTOD.

Pedro André Prates1, Armando Eusébio Marques1, Micael Frias Borges1

  • 1Centre for Mechanical Engineering, Department of Mechanical Engineering, Materials and Processes (CEMMPRE), University of Coimbra, 3030-788 Coimbra, Portugal.

Materials (Basel, Switzerland)
|March 15, 2020
PubMed
Summary
This summary is machine-generated.

This study quantifies how material properties and load variations affect plastic crack tip opening displacement (CTOD) in AA7050-T6. Metamodels efficiently predict CTOD variability and fatigue crack growth rates.

Keywords:
CTODfatiguemetamodelingsensitivity analysisstochastic analysisvariability

More Related Videos

Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals
08:02

Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals

Published on: November 15, 2024

899
Construction of a Preclinical Multimodality Phantom Using Tissue-mimicking Materials for Quality Assurance in Tumor Size Measurement
06:33

Construction of a Preclinical Multimodality Phantom Using Tissue-mimicking Materials for Quality Assurance in Tumor Size Measurement

Published on: July 29, 2013

11.6K

Related Experiment Videos

Last Updated: Dec 26, 2025

DUCT: Double Resin Casting followed by Micro-Computed Tomography for 3D Liver Analysis
12:39

DUCT: Double Resin Casting followed by Micro-Computed Tomography for 3D Liver Analysis

Published on: September 28, 2021

3.6K
Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals
08:02

Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals

Published on: November 15, 2024

899
Construction of a Preclinical Multimodality Phantom Using Tissue-mimicking Materials for Quality Assurance in Tumor Size Measurement
06:33

Construction of a Preclinical Multimodality Phantom Using Tissue-mimicking Materials for Quality Assurance in Tumor Size Measurement

Published on: July 29, 2013

11.6K

Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Computational Mechanics

Background:

  • Plastic crack tip opening displacement (CTOD) is crucial for fracture mechanics analysis.
  • Understanding variability in CTOD is essential for reliable structural integrity assessments.
  • AA7050-T6 aluminum alloy is a widely used aerospace material.

Purpose of the Study:

  • To numerically investigate the influence of material parameters and loading conditions on plastic CTOD.
  • To identify key input parameters affecting plastic CTOD variability.
  • To develop predictive models for plastic CTOD and fatigue crack growth rate.

Main Methods:

  • Numerical simulation of a middle-cracked tension specimen.
  • Screening design of experiments (one-factor-at-a-time and fractional factorial) to identify influential parameters.
  • Metamodeling using Face-Centered Central Composite Design and Box-Behnken design.
  • Analysis of variance (ANOVA) and main effect analysis.

Main Results:

  • Material hardening parameters and maximum applied load were identified as the most influential factors on plastic CTOD.
  • Validated metamodels accurately predict the variability in plastic CTOD range.
  • The study successfully evaluated the impact of parameter variability on fatigue crack growth rate.

Conclusions:

  • Material properties and loading significantly influence plastic CTOD.
  • Metamodeling provides an efficient tool for assessing variability in fracture parameters.
  • The findings aid in predicting the service life and reliability of structures made from AA7050-T6.