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对轻型车辆的正交异性钢板进行疲劳分析,考虑疲劳敏感区域处的初始缺陷,获得疲劳寿命。采用3种模型精确模拟肋与隔板连接处的应力集中现象,并用Paris公式模拟裂纹发展状况。为了分析连接处焊接节点初始缺陷的影响,研究了不同初始裂纹下钢板的疲劳寿命。为正交异性钢板疲劳寿命的评估提出了一个合理的方法。 相似文献
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Van Hoai Duc Phan Duong Huu-Thanh Hoang Vinh Truong 《International Journal on Document Analysis and Recognition》2021,24(1-2):123-131
International Journal on Document Analysis and Recognition (IJDAR) - Optical character recognition (OCR) is a technology for converting text automatically on images into data strings for editing,... 相似文献
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Huu-Thanh NguyenQuoc-Thang Chu Seung-Eock Kim 《Journal of Constructional Steel Research》2011,67(4):647-655
An orthotropic steel deck designed for carrying light-weight vehicles was investigated to assess its fatigue life. Fracture mechanics analysis was performed with consideration of pre-existing flaws at the fatigue-sensitive region. Three-level models were used to accurately evaluate the stress-intensity factors at the rib-to-diaphragm connection. The crack growth was simulated by numerical integration of the Paris formula. In order to assess the severity of pre-existing flaws at the welded joint of the rib-to-diaphragm connection, the fatigue life of the deck was investigated with different sizes of initial crack. This approach provides a rational quality assessment method for the orthotropic steel deck. 相似文献
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