三轴材料不均匀性对非线性弹性梁纵向裂纹的影响

Q2 Engineering

Engineering Transactions Pub Date : 2019-03-07 DOI:10.24423/ENGTRANS.909.20190308

V. Ri̇zov

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引用次数: 0

摘要

本文研究了三轴非均匀非线性弹性悬臂梁的纵向裂纹行为，即沿宽度，高度和长度表现出非均匀材料特性的梁。假设弹性模量沿梁的宽度、高度和长度呈线性变化，用Ramberg-Osgood方程描述了非均匀材料的非线性力学行为。通过考虑能量平衡，导出了应变能释放率的解。研究结果表明，材料的三轴不均匀性对非线性弹性梁的应变能释放率有显著影响。

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Effects of Three-Axial Material Inhomogeneity on Lengthwise Cracks in Non-Linear Elastic Beams

The present paper investigates lengthwise crack behaviour in three-axial inhomogeneous non-linear elastic cantilever beams, i.e., beams which exhibit inhomogeneous material properties along the width, height and length. The non-linear mechanical behaviour of the inhomogeneous material is described by the Ramberg-Osgood equation assuming that the modulus of elasticity varies linearly along the width, height and length of beams. A solution to the strain energy release rate is derived by considering the balance of the energy. The results obtained in the present paper indicate that the three-axial inhomogeneous material properties have a significant influence on the strain energy release rate in non-linear elastic beams.

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来源期刊

Engineering Transactions Engineering-Engineering (all)

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Engineering Transactions (formerly Rozprawy Inżynierskie) is a refereed international journal founded in 1952. The journal promotes research and practice in engineering science and provides a forum for interdisciplinary publications combining mechanics with: Material science, Mechatronics, Biomechanics and Biotechnologies, Environmental science, Photonics, Information technologies, Other engineering applications. The journal publishes original papers covering a broad area of research activities including: experimental and hybrid techniques, analytical and numerical approaches. Review articles and special issues are also welcome. Following long tradition, all articles are peer reviewed and our expert referees ensure that the papers accepted for publication comply with high scientific standards. Engineering Transactions is a quarterly journal intended to be interesting and useful for the researchers and practitioners in academic and industrial communities.