带横向裂纹的点蚀板极限强度分析

IF 0.8 4区工程技术 Q4 ENGINEERING, MECHANICAL

Transactions of The Canadian Society for Mechanical Engineering Pub Date : 2022-10-20 DOI:10.1139/tcsme-2022-0028

A. R. Ranji, Farzaneh Ahmadi, S. Alirezaee

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引用次数: 1

摘要

利用有限元软件ANSYS对具有横向裂纹的麻面板在单轴压缩下的极限强度进行了数值分析。研究发现，点蚀在厚板中更为严重，而裂纹在薄板中更为关键，并且无论裂纹长度和厚度如何，具有中心裂纹的板对极限强度降低的影响最小。对于小裂纹，具有双侧裂纹的板的折减系数低于具有单侧裂纹的板，而对于长裂纹，反之亦然。裂纹板极限强度的最大折减系数出现在具有两个边缘裂纹的薄板中。结果表明，与单独的裂纹和点蚀相比，裂纹和点蚀的共同作用使板的极限强度分别降低了400%和50%。因此，可以得出结论，由于极限强度的急剧下降，在点蚀之前板材的开裂更为有害。

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Ultimate strength analysis of pitted plates with transverse cracks

Numerical analysis using computer code ANSYS was employed to analyze the ultimate strength of pitted plates with transverse cracks under uniaxial compression. It was found that pitting was more critical in the thick plate and cracking in the thin plate, and the plate with a center crack had the lowest effect on the reduction of the ultimate strength, regardless of the crack length and thickness of the plate. For small cracks, plates with two edge cracks had a lower reduction factor than plates with a single edge crack, while for long cracks it was vice versa. The maximum reduction factor of the ultimate strength of the cracked plate occurred in thin plates with two edge cracks. The results showed that the combined effect of cracking and pitting reduced the ultimate strength of the plate by up to 400% and 50% with respect to cracking and pitting alone, respectively. Thus, it can be concluded that cracking of plates prior to pitting is more detrimental, since sharp decreases of the ultimate strength.

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来源期刊

Transactions of The Canadian Society for Mechanical Engineering 工程技术-工程：机械

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

5 months

期刊介绍： Published since 1972, Transactions of the Canadian Society for Mechanical Engineering is a quarterly journal that publishes comprehensive research articles and notes in the broad field of mechanical engineering. New advances in energy systems, biomechanics, engineering analysis and design, environmental engineering, materials technology, advanced manufacturing, mechatronics, MEMS, nanotechnology, thermo-fluids engineering, and transportation systems are featured.