New strain gradient theory and analysis

Dake Yi; Tzu Chiang Wang; Shaohua Chen

doi:10.1016/S0894-9166(09)60089-6

New strain gradient theory and analysis

Dake Yi, Tzu Chiang Wang^*, Shaohua Chen

^*Corresponding author for this work

CAS - Institute of Mechanics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A new strain gradient theory which is based on energy nonlocal model is proposed in this paper, and the theory is applied to investigate the size effects in thin metallic wire torsion, ultra-thin beam bending and micro-indentation of polycrystalline copper. First, an energy nonlocal model is suggested. Second, based on the model, a new strain gradient theory is derived. Third, the new theory is applied to analyze three representative experiments.

Original language	English
Pages (from-to)	45-52
Number of pages	8
Journal	Acta Mechanica Solida Sinica
Volume	22
Issue number	1
DOIs	https://doi.org/10.1016/S0894-9166(09)60089-6
Publication status	Published - Feb 2009
Externally published	Yes

Keywords

micro-indentation
non-local model
size effect
strain gradient theory

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10.1016/S0894-9166(09)60089-6

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abstract = "A new strain gradient theory which is based on energy nonlocal model is proposed in this paper, and the theory is applied to investigate the size effects in thin metallic wire torsion, ultra-thin beam bending and micro-indentation of polycrystalline copper. First, an energy nonlocal model is suggested. Second, based on the model, a new strain gradient theory is derived. Third, the new theory is applied to analyze three representative experiments.",

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AU - Chen, Shaohua

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AB - A new strain gradient theory which is based on energy nonlocal model is proposed in this paper, and the theory is applied to investigate the size effects in thin metallic wire torsion, ultra-thin beam bending and micro-indentation of polycrystalline copper. First, an energy nonlocal model is suggested. Second, based on the model, a new strain gradient theory is derived. Third, the new theory is applied to analyze three representative experiments.

KW - micro-indentation

KW - non-local model

KW - size effect

KW - strain gradient theory

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New strain gradient theory and analysis

Abstract

Keywords

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