Extreme Yield Figures for Universal Strength Criteria

Extreme Yield Figures for Universal Strength Criteria
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通用强度标准的极端屈服值

DOI:
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发表时间:
2019
期刊:
Advanced Structured Materials
影响因子:
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通讯作者:
H. Altenbach
H. Altenbach
中科院分区:
--
文献类型:
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作者:
P. Rosendahl;V. Kolupaev;H. Altenbach

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相似文献

我们提出了一个通用的,普遍适用的屈服准则,描述了一个单一的凸面在主应力空间包括极端屈服数字作为凸极限。利用屈服面在主应力空间中的几何性质,从现象学上推导出新的判据。使用不同形式的可视化,系统地将其与已知的屈服准则进行比较。使用I1 -替代,该准则适用于具有压敏特性的材料,并包含众所周知的强度准则。引入适当的参数限制,可应用于材料韧性和脆性行为的建模。本准则的实施消除了为特定材料选择特定屈服准则的必要性。所提出的准则可以很好地近似实验数据。它适用于混凝土的测量数据,比现有的文献标准提供更好的准确性。
We propose a universal, generally applicable yield criterion that describes a single convex surface in principal stress space encompassing extreme yield figures as convexity limits. The novel criterion is derived phenomenologically exploiting geometrical properties of yield surfaces in principal stress space. It is systematically compared with known yield criteria using different forms of visualization. Using a I1 - substitution the criterion is applicable to materials with pressure-sensitive behavior and contains well-known strength criteria. Introducing appropriate parameter restrictions, it can be applied for the modeling of ductile and brittle material behavior. The implementation of the present criterion eliminates the necessity of choosing a specific yield criterion for a particular material. The proposed criterion allows for excellent approximation of experimental data. It is applied to measured data of concrete and provides better accuracy than existing criteria from literature.
DOI: 10.1007/s10010-014-0175-9
发表时间: 2014
期刊: Forschung im Ingenieurwesen
影响因子: --
作者:
Kolupaev;Becker;Massow;Dierkes
通讯作者: Dierkes