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

192
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...
192
Plastic Deformations01:19

Plastic Deformations

123
Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
123

You might also read

Related Articles

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

Sort by
Same author

Modelling the Mechanical Properties of Architected Cellular Solids for Structural Applications: A Review.

Materials (Basel, Switzerland)·2026
Same author

Automatic OptoDrive for Extracellular Recordings and Optogenetic Stimulation in Freely Moving Mice.

eNeuro·2025
Same author

Inducing Magnetic Properties with Ferrite Nanoparticles in Resins for Additive Manufacturing.

International journal of molecular sciences·2023
Same author

Extended CT Void Analysis in FDM Additive Manufacturing Components.

Materials (Basel, Switzerland)·2020

Related Experiment Video

Updated: Jun 13, 2025

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
09:37

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Published on: October 23, 2015

12.6K

Influence of Infill Patterns on the Shape Memory Effect of Cold-Programmed Additively Manufactured PLA.

Vladimir Barrera-Quintero1,2, Erasmo Correa-Gómez2,3, Alberto Caballero-Ruiz2,4

  • 1Programa de Maestría y Doctorado en Ingeniería, Universidad Nacional Autónoma de México (UNAM), Edificio "T-Bernardo Quintana Arrioja", Primer Piso, Ciudad Universitaria, Mexico City 04510, Mexico.

Polymers
|September 14, 2024
PubMed
Summary

In four-dimensional additive manufacturing (4DAM), infill patterns affect mechanical strength more than shape memory effect (SME) in PLA. Criss-cross patterns show higher yield stress, while recovery remains consistent across patterns.

Keywords:
4DAMPLAcold programmingdigital manufacturingfour-dimensional additive manufacturinginfill patternmaterial extrusionshape memory effect

More Related Videos

A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars
05:32

A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars

Published on: August 4, 2018

12.6K
Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.4K

Related Experiment Videos

Last Updated: Jun 13, 2025

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
09:37

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Published on: October 23, 2015

12.6K
A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars
05:32

A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars

Published on: August 4, 2018

12.6K
Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.4K

Area of Science:

  • Materials Science
  • Additive Manufacturing
  • Polymer Engineering

Background:

  • Four-dimensional additive manufacturing (4DAM) enables stimuli-responsive materials and structures.
  • Shape memory effect (SME) is crucial for shape-changing functionalities in 4DAM.
  • Process parameter tuning is vital for achieving desired shape-change specifications.

Purpose of the Study:

  • To investigate the influence of infill patterns on the SME of compression cold-programmed PLA.
  • To analyze the effect of criss-cross and concentric infill patterns on PLA's mechanical properties and shape recovery under thermal stimulus.

Main Methods:

  • Utilized four-dimensional additive manufacturing (4DAM) to fabricate PLA samples with different infill patterns (criss-cross and concentric).
  • Performed compression cold-programming and thermal stimulus testing to evaluate the shape memory effect.
  • Analyzed stress-strain curves to determine mechanical properties like yield stress and shape fixity/recovery ratios.

Main Results:

  • The criss-cross infill pattern exhibited a higher yield stress compared to the concentric pattern.
  • Shape recovery ratio showed similar trends for both patterns, indicating infill pattern does not significantly impact recovery.
  • Shape fixity ratio was higher than the shape recovery ratio for both infill patterns.
  • Recovery force increased proportionally with applied displacement.

Conclusions:

  • Infill pattern primarily influences the mechanical strength (yield stress) of 4DAM-processed PLA, not its shape memory effect (SME).
  • PLA demonstrates a consistent SME within the tested compression range (15-45%), irrespective of the infill pattern.
  • Understanding infill pattern effects is crucial for optimizing mechanical properties in 4DAM applications.