Investigation on the dynamic response of steel plates with a pre-formed hole loaded by underwater shock wave

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL Thin-Walled Structures Pub Date : 2025-01-13 DOI:10.1016/j.tws.2025.112926

Yue Li , Xiongwen Jiang , Yu Tang , Hongjian Wei , Wei Zhang

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Abstract

The dynamic response of per-formed steel plate under underwater shock wave is studied experimentally and simulated numerically. Underwater shock wave is generated by underwater shock tube device. In each experiment, the impact strength is easily controlled by the speed of the flying piece. The difference of dynamic response of different pass steel plates was studied. The impact loading zone of the plate is a circle with a diameter of 0.12 m. The whole deformation process of test steel plate was measured by three-dimensional digital image correlation. The test results cover a wide range of structural responses from large plastic deformation to complete tearing. The results show that the dynamic response of per-formed steel plate can be divided into two stages: plastic deformation and structural failure. The mechanical behavior of steel plate during plastic deformation is analyzed by momentum theorem. The simplified formulas of deformation velocity and acceleration in the plastic deformation stage of steel plate are obtained. Numerical simulation method is used to study the influencing factors of circular pre-formed steel plate. The results show that the rolling direction and the defects at the pre-formed holes have a certain influence on the damage morphology of the steel plate. According to the experimental and numerical simulation results, the law of crack generation and propagation is analyzed. The results show that the shape of the pre-formed hole has a significant influence on the damage morphology of the plate.

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.