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

185
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...
185
Problem-Solving: Tuning of a Guitar String01:04

Problem-Solving: Tuning of a Guitar String

401
In the case of stringed instruments like the guitar, the elastic property that determines the speed of the sound produced is its linear mass density or the mass per unit length. This is simply called the linear density. If the string's linear density is constant along the string, then the linear density is simply the total mass divided by the total length.
The string's wave speed can be regulated by varying the linear density. Tension is the other property that determines the speed of...
401
Effects of Creep01:25

Effects of Creep

89
Creep in concrete, the gradual deformation under prolonged stress, significantly impacts the integrity of structures. For reinforced concrete beams, it can be a vital design consideration, as it increases deflection, sometimes necessitating additional design measures. In columns, especially slender ones under eccentric loads, creep can cause buckling, compromising their stability. However, creep can be beneficial in indeterminate structures by mitigating stresses that arise from shrinkage,...
89
Plasticity00:58

Plasticity

2.1K
Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
2.1K
Plastic Deformations01:19

Plastic Deformations

117
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...
117
Factors Affecting Creep01:28

Factors Affecting Creep

113
In normal-weight aggregate concrete, the hardened cement paste is the primary contributor to creep, whereas the aggregates, being stiffer than the cement paste, are more resilient to stress-induced deformation. The stiffness of the aggregates is defined by their modulus of elasticity, and the more voluminous they are in the concrete, the less it will creep.
Further, the water/cement ratio is critical, as a lower ratio increases concrete strength, thus reducing creep. The strength of the...
113

You might also read

Related Articles

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

Sort by
Same author

Effects of Twisting and Surface Finish on the Mechanical Properties of Natural Gut Harp Strings.

Materials (Basel, Switzerland)·2023
Same author

Comparison of Mechanical Properties of Natural Gut and Synthetic Polymer Harp Strings.

Materials (Basel, Switzerland)·2018
See all related articles

Related Experiment Video

Updated: May 31, 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

13.7K

Plastic Creep Constraint in Nylon Instrument Strings.

Nicolas Lynch-Aird1, Jim Woodhouse2, Claire Y Barlow2

  • 1The Old Forge, Burnt House Lane, Battisford, Stowmarket, Suffolk IP14 2ND, UK.

Materials (Basel, Switzerland)
|January 25, 2025
PubMed
Summary

Nylon harp strings exhibit complex plastic creep behavior. A novel

Keywords:
creepcreep constraintcrystallinityinstrument stringmusical stringnylonplastic creepstringviscoelastic

More Related Videos

Production of a Strain-Measuring Device with an Improved 3D Printer
06:17

Production of a Strain-Measuring Device with an Improved 3D Printer

Published on: January 30, 2020

6.0K
Environmentally-controlled Microtensile Testing of Mechanically-adaptive Polymer Nanocomposites for ex vivo Characterization
11:38

Environmentally-controlled Microtensile Testing of Mechanically-adaptive Polymer Nanocomposites for ex vivo Characterization

Published on: August 20, 2013

10.1K

Related Experiment Videos

Last Updated: May 31, 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

13.7K
Production of a Strain-Measuring Device with an Improved 3D Printer
06:17

Production of a Strain-Measuring Device with an Improved 3D Printer

Published on: January 30, 2020

6.0K
Environmentally-controlled Microtensile Testing of Mechanically-adaptive Polymer Nanocomposites for ex vivo Characterization
11:38

Environmentally-controlled Microtensile Testing of Mechanically-adaptive Polymer Nanocomposites for ex vivo Characterization

Published on: August 20, 2013

10.1K

Area of Science:

  • Materials Science
  • Polymer Physics
  • Mechanical Engineering

Background:

  • Nylon harp strings exhibit elastic, viscoelastic, and plastic stretching under stress.
  • Understanding the long-term mechanical behavior of polymer strings is crucial for applications.

Purpose of the Study:

  • To quantitatively investigate the plastic creep behavior of nylon harp strings under various stress sequences.
  • To identify and characterize any novel phenomena in the creep response over extended testing periods.

Main Methods:

  • Subjecting rectified nylon harp strings of identical diameter to different sequences of applied stress steps.
  • Continuous testing over several weeks to observe stretching responses.
  • Quantitative data collection on elastic, viscoelastic, and plastic stretching.

Main Results:

  • Observed elastic, recoverable viscoelastic, and non-recoverable plastic stretching.
  • Discovered a plastic creep 'constraint' phenomenon where subsequent stretching was reduced after rest periods (30-40 days).
  • Identified an initial 'straightening' phase followed by an unlimited main stretching phase at higher stress levels.

Conclusions:

  • Nylon harp string creep is complex, influenced by stress history and rest periods.
  • A potential mechanism for creep constraint is the increase in polymer crystallinity during rest.
  • The stress-strain relationship in plastic creep is not always linear and can exhibit distinct phases.