具有联合屈服区的多条直裂纹的条带屈服模型的理论研究

IF 0.4 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Strength Fracture and Complexity Pub Date : 2021-11-02 DOI:10.3233/sfc-210276

S. Hasan, N. Akhtar, S. Shekhar

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引用次数: 0

摘要

本文提出了一个复杂的情况，即在削弱无限各向同性板的四条共线直裂纹中，两条内部裂纹之间的屈服区合并。给出了在一般屈服条件下多裂纹张开和闭合的两种解法。利用这两个解和叠加原理，用复变法得到了板承载力的解析表达式。已经进行了一项数值研究，以研究屈服区长度与板边界处远程施加的应力有关的行为，以及两个外部裂纹对内部裂纹由于聚结屈服区而扩展的影响。获得的结果以图表形式报告。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Strip yield model for multiple straight cracks with coalesced yield zones: A theoretical study

The paper presents a complicated case of coalescence of yield zones between two internal cracks out of four collinear straight cracks weakened an infinite isotropic plate. Two solutions are presented for the case of opening and closing of multiple cracks under general yielding conditions. Using these two solutions and the principle of superposition, we found the analytical expressions for load-bearing capacity of the plate using complex variable method. A numerical study has been carried out to investigate the behavior of yield zone length concerning remotely applied stresses at the boundary of the plate and the impact of two outer cracks on the propagation of inner cracks due to coalesced yield zones. Results obtained are reported graphically.

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来源期刊

Strength Fracture and Complexity MATERIALS SCIENCE, CHARACTERIZATION & TESTING-

CiteScore

1.30

自引率

0.00%

发文量

期刊介绍： Strength, Fracture and Complexity: An International Journal is devoted to solve the strength and fracture unifiedly in non linear and systematised manner as complexity system. An attempt is welcome to challenge to get the clue to a new paradigm or to studies by fusing nano, meso microstructural, continuum and large scaling approach. The concept, theoretical and/or experimental, respectively are/is welcome. On the other hand the presentation of the knowledge-based data for the aims is welcome, being useful for the knowledge-based accumulation. Also, deformation and fracture in geophysics and geotechnology may be another one of interesting subjects, for instance, in relation to earthquake science and engineering.