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Open AccessArticle

A Constitutive Model of Plate-Like Entangled Metallic Wire Material in Wide Temperature Range

Engineering Research Center for Metal Rubber, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China
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Materials 2019, 12(16), 2538; https://doi.org/10.3390/ma12162538
Received: 4 July 2019 / Revised: 2 August 2019 / Accepted: 6 August 2019 / Published: 9 August 2019
(This article belongs to the Section Structure Analysis and Characterization)
Entangled metallic wire material (EMWM) is a kind of porous damping material. To promote the engineering application of EMWM, it is necessary to establish the constitutive model of EMWM to estimate its mechanical properties. In this paper, a series of quasi-static compression experiments for plate-like EMWM specimens made of austenitic stainless steel wire (06Cr19Ni10) with different densities were carried out in the temperature range of 20–500 °C. It was found that the stiffness of the plate-like EMWM would increase with the increases in the ambient temperature. The non-linear characteristics of the force–displacement curve of the plate-like EMWM would be weakened. Taking the spatial structural characteristics of the plate-like EMWM and the influence of the thermal expansion of the structure into account, a new constitutive model for plate-like EMWM was presented by the combination of the Johnson–Cook model and the Sherwood–Frost constitutive framework model. The accuracy of the model was verified by the experimental data under different temperatures. The results show that the calculated results of the model are consistent with the experimental results. This model can provide an effective theoretical basis for predicting the mechanical properties of plate-like EMWM and guiding its design. View Full-Text
Keywords: entangled metallic wire material; Johnson–Cook; Sherwood–Frost; quasi-static compression; high temperature entangled metallic wire material; Johnson–Cook; Sherwood–Frost; quasi-static compression; high temperature
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Ding, Z.; Bai, H.; Wu, Y.; Ren, Z.; Shao, Y. A Constitutive Model of Plate-Like Entangled Metallic Wire Material in Wide Temperature Range. Materials 2019, 12, 2538.

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