Application of the Rate-Dependent Ladeveze Model in Failure Analysis of Composites

HUANG Zongzheng; MI Dong; OUYANG Zhigao; HE Xiang; HUANG Xing; ZHOU Wei; JIANG Lanlan; GUO Zaoyang; MA Liangying

doi:10.21656/1000-0887.440358

Volume 45 Issue 7

Jul. 2024

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Article Navigation > Applied Mathematics and Mechanics > 2024 > 45(7): 864-874

HUANG Zongzheng, MI Dong, OUYANG Zhigao, HE Xiang, HUANG Xing, ZHOU Wei, JIANG Lanlan, GUO Zaoyang, MA Liangying. Application of the Rate-Dependent Ladeveze Model in Failure Analysis of Composites[J]. Applied Mathematics and Mechanics, 2024, 45(7): 864-874. doi: 10.21656/1000-0887.440358

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Application of the Rate-Dependent Ladeveze Model in Failure Analysis of Composites

doi: 10.21656/1000-0887.440358

1.
AECC Hunan Aviation Powerplant Research Institute, Zhuzhou, Hunan 412002, P.R.China
2.
School of Science, Harbin Institute of Technology, Shenzhen, Shenzhen, Guangzhou 518055, P.R.China

Received Date: 2023-12-18
Rev Recd Date: 2024-03-13
Publish Date: 2024-07-01

Abstract

Abstract

To investigate the load-bearing capacity and failure modes of unidirectional fiber-reinforced laminates subjected to uniaxial loads, finite element analyses were conducted to predict mechanical responses such as plastic accumulation and damage evolution. The Ladeveze constitutive model based on the 2D continuum damage theory was introduced and a user material subroutine was developed based on this model to consider the plastic behavior of the composites, where the isotropic plastic strengthening was assumed. Subsequently, a LS-DYNA finite element simulation model for unidirectional laminate plates was established to explore typical failure behaviors under loading conditions of longitudinal tension, longitudinal compression, transverse tension, and in-plane shear, respectively. A comparative analysis with experimental results was carried out to validate the efficacy of the developed subroutine. Finally, a logarithmic rate-dependent correction function was introduced to predict the damage modes of composite materials under various strain rate loads. The sensitivity of the rate effect in unidirectional fiber-reinforced laminates and its correlation with load-bearing components were investigated.
- Ladeveze constitutive model,
- damage evolution,
- rate effect,
- plasticity

(Recommended by LIANG Xudong, M.AMM Youth Editorial Board)

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References(23)

References

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