Abstract
To evaluate the residual strength of the ship after explosion, the Explosion Smith Method (ESM) is proposed. The innovation of the ESM lies in two aspects: firstly, based on the Baker shock wave and quasi-static pressure model, Jones critical velocity model, propose a method for assessing the range of explosion damage of cabin and validated through referenced experiments. Secondly, proposes the strain-stress relationship of the deformation element. To verify the feasibility of the ESM and study the influence of TNT location and mass,16 simulations and EMS calculations were conducted. The results showed that the residual strength is most impacted when the TNT in top deck. For side cabin, the explosion products discharged and impact reduced. The trend of the ESM and simulation were consistent, but the result of ESM was more severe. The reason that strain-stress relationship of the deformation element more stringent, resulting in the ESM smaller than the simulation. However, as the TNT increases the error decreases. In the future, more research can be conducted on the deformed structures to enhance the accuracy of the ESM.
Author Biographies
Jiaxin Wu, Liaoning Shock Protection and Damage Assessment Technology Engineering Research Center,Shen Yang university of technology
Jiaxin Wu is a doctoral student at Shenyang University of Technology. My main research direction is the evaluation method of residual strength of ship hulls after explosions and fires.
Ming Yan , Liaoning Shock Protection and Damage Assessment Technology Engineering Research Center,Shenyang University of Technology
Ming Yan is president of the Institute of Science and Technology at the Shen Yang University of technology. He completed his PhD studies mechanical engineering at the Northeastern University, and has been awarded second prize for scientific and technological progress in Liaoning Province. He has published 60 papers in various journals, and serves as a standing director for Liaoning Society of Vibration Engineering. His teaching disciplines include Shock measurement, Damage assessment method, and his interests include Impact protection methods and technologies, Damage assessment method.
Xingwei Sun, Liaoning Shock Protection and Damage Assessment Technology Engineering Research Center,Shenyang University of Technology
Sun Xingwei is professor and doctoral supervisor at the School of Mechanical Engineering, Shenyang University of Technology. She is an academic leader in the field of mechanical engineering and a researcher at the Liaoning Major Equipment Manufacturing Collaborative Innovation Center under the National 2011 Plan. The current director of the Key Laboratory of Complex Surface Numerical Control Manufacturing Technology in Liaoning Province, serving as the Deputy Secretary General of the Machine Tool Professional Committee of the Production Engineering Branch of the Chinese Society of Mechanical Engineering, a member of the China Machinery Industry Excellent Engineer Education Alliance and the Intelligent Manufacturing Professional Committee, and a member of the Online Testing Technology Professional Committee of the China Metrology and Testing Society. Recipient of the State Council Government Special Allowance, honored with titles such as Outstanding Science and Technology Worker in Liaoning Province, Outstanding Teacher in Liaoning Province, Outstanding Science and Technology Worker in Shenyang City, and Outstanding Graduate Supervisor in Shenyang Universities.She Published over 50 academic papers in core journals, including more than 30 papers indexed in SCI and EI; Independently supervised 49 master's students and 5 doctoral students.
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