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Related Concept Videos

Rolling Resistance01:21

Rolling Resistance

284
When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
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Stress Concentrations in Circular Shafts01:18

Stress Concentrations in Circular Shafts

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Consider the elastic torsion formula, which applies to a circular shaft with a consistent cross-section. This formula assumes that the shaft's ends are loaded with rigid plates firmly attached. However, in many cases, torques are applied to the shaft through mechanisms like flange couplings or gears, which are connected by keys inserted into keyways. This application method modifies the stress distribution near the point of torque application, causing it to deviate from the distributions...
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Elastic Curve from the Load Distribution01:16

Elastic Curve from the Load Distribution

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The structural behavior of beams under distributed loads is critical for engineering analysis, which focuses on predicting how beams bend and react under such conditions. Different types of beams (e.g., cantilever, supported, or overhanging) behave differently under distributed load conditions.
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Members Made of Elastoplastic Material01:19

Members Made of Elastoplastic Material

94
The behavior of elastoplastic materials under bending stresses, particularly in structural members with rectangular cross-sections, is crucial for predicting material responses and understanding failure modes. Initially, when a bending moment is applied, the stress distribution across the section follows Hooke's Law and is linear and elastic. This distribution means the stress increases from the neutral axis to the maximum at the outer fibers, up to the elastic limit.
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Dry Friction01:30

Dry Friction

361
Dry friction occurs between two solid surfaces in contact as they attempt to move relative to one another. In daily life, dry friction is encountered in various forms, such as when walking on the ground, sliding an object across a table, or rubbing hands together. Despite its ubiquity, the underlying mechanisms behind dry friction are not readily visible.
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Thin-Walled Hollow Shafts01:15

Thin-Walled Hollow Shafts

176
In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution...
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Related Experiment Video

Updated: Jun 15, 2025

Finite Element Modeling for the Simulation of the Quasi-Static Compression of Corrugated Tapered Tubes
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Advanced Finite Element Analysis Process for Accurate Cured Tire Shape Forecasting.

Sairom Yoo1, Hyunseung Kim1, Yongsu Kim1

  • 1Virtual Research Department, Design Analysis Team, Nexen Tire Corp, 177, Magokjungang-ro, Gangseo-Gu, Seoul 157-010, Republic of Korea.

Polymers
|June 13, 2025
PubMed
Summary
This summary is machine-generated.

Accurately predicting tire shape is crucial for performance. This study developed a new finite element analysis method, significantly reducing dimensional errors in tire shape prediction for better design and efficiency.

Keywords:
fabric cordfinite element analysispermanent setpost-cure inflationthermal shrinkagetire

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Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Automotive Engineering

Background:

  • Tire manufacturing involves complex cord-rubber composite behavior.
  • Thermal shrinkage and permanent deformation of cords impact final tire dimensions.
  • Accurate prediction of cured tire shape is essential for performance forecasting.

Purpose of the Study:

  • To develop a precise finite element analysis (FEA) methodology for predicting cured tire shape.
  • To experimentally characterize fabric cord behavior under manufacturing conditions.
  • To improve tire design optimization and reduce prototype iterations.

Main Methods:

  • Systematic experimental characterization of fabric cord (PET and nylon) behavior.
  • Quantification of thermal shrinkage and permanent set under varying in-mold strain and Post-Cure Inflation (PCI) force.
  • Development and validation of a comprehensive FEA methodology.

Main Results:

  • Experimental data revealed distinct shrinkage and set patterns for PET and nylon cords.
  • The FEA methodology significantly improved tire shape prediction accuracy.
  • Dimensional errors were reduced by 54.2% for outer diameter and 49.5% for section width.
  • Enhanced accuracy in profile and footprint predictions, crucial for tire-road contact.

Conclusions:

  • The proposed FEA methodology offers a substantial advancement in predicting cured tire shape.
  • This approach enables more precise tire design and performance forecasting.
  • The methodology enhances product development efficiency and final tire performance.