Unloading of elastoplastic spheres from large deformations
Unloading of elastoplastic spheres from large deformations
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DOI：
10.1016/j.powtec.2020.06.094
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发表时间：
2020-09-01
影响因子：
5.2
通讯作者：
Sinka, I. C.
中科院分区：
文献类型：
--
作者：
Edmans, B. D.;Sinka, I. C.
无粘着弹塑性球接触后的卸载行为呈现复杂的非线性特征。能够准确预测这种响应的分析模型尚未开发用于广泛的材料特性和初始变形状态，因此在接触定律的实际应用中广泛使用需要校准的半经验模型。我们通过进行有限元研究，对卸载过程中的接触行为进行了深入了解，材料特性（1
The unloading behaviour of adhesion-free elastic-perfectly plastic spheres following contact presents complex nonlinear features. Analytical models capable of accurately predicting this response have not yet been developed for an extensive range of material properties and initial deformation states, and consequently the use of semi-empirical models requiring calibration is widespread in the practical application of contact laws.In this work, we provide insight into contact behaviour during unloading by conducting a finite element study to characterise this response for a comprehensive range of material properties (1