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An improved model for predicting effective Young's modulus of the twisted structure under cyclic loading: taking into account the untwisting effect
- Source :
- Theoretical and Applied Mechanics Letters, Vol 8, Iss 2, Pp 132-136 (2018)
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Twist structures have diverse applications, ranging from dragline, electrical cable, and intelligent structure. Among these applications, tension deformation can't be avoided during the fabrication and working processes, which often leads to the twist structure rotation (called untwisting effect) and twist pitch increasing. As a consequence, this untwisting behavior has a large effect on the effective Young's modulus. In this paper, we present an improved model based on the classical Costello's theory to predict the effective Young's modulus of the basic structure, twisted by three same copper strands under cyclic loading. Series of experiments were carried out to verify the present model taking into account the untwisting effect. The experimental results have better agreements with the presented model than the common Costello's model. Keywords: Twist structure, Young's modulus, Cyclic loading, Untwisting effect
- Subjects :
- Environmental Engineering
Materials science
Biomedical Engineering
Computational Mechanics
Structure (category theory)
Aerospace Engineering
Modulus
Ocean Engineering
Young's modulus
Rotation
01 natural sciences
symbols.namesake
0103 physical sciences
Twist
010306 general physics
Civil and Structural Engineering
010302 applied physics
Series (mathematics)
Tension (physics)
Mechanical Engineering
Mechanics
lcsh:TA1-2040
Mechanics of Materials
symbols
Deformation (engineering)
lcsh:Engineering (General). Civil engineering (General)
Subjects
Details
- ISSN :
- 20950349
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Theoretical and Applied Mechanics Letters
- Accession number :
- edsair.doi.dedup.....966d3682fdfaf4dce82ca7868cecf509