裂纹加筋和缺口加筋对钢加筋板极限强度的影响
Effect of Cracked and Notched Stiffeners on the Ultimate Strength of Steel Stiffened Panels作者机构：Babol Noshirvani University of TechnologyMechanical Engineering FacultyBabolIran Amirkabir University of TechnologyDepartment of Maritime EngineeringTehranIran
出 版 物：《哈尔滨工程大学学报（英文版）》 (Journal of Marine Science and Application)
年 卷 期：2024年第23卷第2期
页 面：460-469页
核心收录：
学科分类：081505[工学-港口、海岸及近海工程] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造]
主 题：Stiffened panels Crack Notch Ultimate strength Buckling Nonlinear finite element method
摘 要：This paper numerically evaluates the effect of the crack position on the ultimate strength of stiffened *** such as notches and cracks in aged marine stiffened panels can reduce their ultimate *** investigate the effect of crack length and position,a series of nonlinear finite element analyses were carried out and two cases were considered,i.e.,case 1 with thin stiffeners and case 2 with thick *** both cases,the stiffeners have the same cross-section *** have a basis for comparison,the intact panels were modeled as *** cracks and notches were in the longitudinal and transverse direction and were assumed to be in the middle part of the *** cracks and notches were assumed to be through the thickness and there is neither crack propagation nor contact between crack *** on the numerical results,longitudinal cracks affect the behavior of the stiffened panels in the postbuckling *** the stiffeners are thinner,they buckle first and provide no reserved strength after plate ***,cracks in the stiffeners do not affect the ultimate strength in the case of the thinner ***,when stiffeners are thicker,they affect the postbuckling behavior *** that case,cracks in the stiffeners affect the buckling and failure modes of the stiffened *** effect of notch was also *** contrast to the longitudinal crack in stiffeners,a notch in the stiffeners reduces the ultimate strength of the stiffened panel for both slender and thick stiffeners.
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