Size and strain rate effects in steel structures
Size and strain rate effects in steel structures
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DOI：
10.1016/j.engstruct.2004.01.007
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发表时间：
2004-04-01
影响因子：
5.5
通讯作者：
Riera, JD
中科院分区：
文献类型：
--
作者：
Morquio, A;Riera, JD
本文包含的尺寸和应变速率对钢的机械性能的联合影响的实验和理论证据。应用连续介质力学和量纲分析的基本原理，导出了材料存在特征维数和特征应变率的条件。建立了同类材料性质之间的关系式。实验结果130个样品加工从一个大的钢板，并进行单轴拉伸断裂的处理，鉴于前面讨论的标准。最后给出了考虑尺寸和应变率耦合的各种材料性能（如抗拉强度）的回归方程。(C)2004 Elsevier Ltd.保留所有权利。
The paper contains experimental and theoretical evidence on the joint influence of size and strain rate on the mechanical properties of steel. Applying basic principles of continuum mechanics and dimensional analysis, the conditions for the existence of a characteristic dimension and a characteristic strain rate of the material are derived. The form of the relations between homologous material properties is also established. Experimental results on 130 samples machined from a large steel plate and subjected to uniaxial tension up to rupture were processed in view of the criteria previously discussed. Regression equations for various material properties, such as the tensile strength, that consider coupling between size and strain rate, are finally presented. (C) 2004 Elsevier Ltd. All rights reserved.