A Comprehensive Investigation of Deformation, Equivalent Stress Responses, and Fatigue Characteristics of Diverse Materials in LPG Cylinders Under Impact Loading Through Simulation
DOI:
https://doi.org/10.38032/scse.2025.3.15Keywords:
LPG cylinder, ANSYS explicit dynamics, Impact simulations, Fatigue analysis, Structural nonlinear steelAbstract
This study evaluates the structural performance of materials used in LPG cylinders under impact loads through numerical simulations using ANSYS Explicit Dynamics, focusing on both linear and nonlinear models for structural steel, aluminum alloys, and stainless steel. The primary objective is to examine the deformation, failure characteristics, and fatigue behavior of these materials under an impact velocity of 7.5 m/s. This study shows that nonlinear structural steel outperforms other materials in terms of endurance, displaying the best strength and the least amount of deformation at 0.0392 m. According to fatigue studies, aluminum alloys break down after 3042 cyclic cycles, while structural steel can withstand at least 10,007 cyclic loads. Structural steel exhibits a marginally higher average safety factor of 10.402 than aluminum alloys, while both materials reach a maximum safety factor of 15. These results highlight structural steel's outstanding performance, which makes it the best option for guaranteeing longevity and safety in LPG cylinders, particularly during transit. The study also highlights how crucial nonlinear material models are to effectively capture mechanical responses in the actual world. This research promotes the utilization of nonlinear structural steel in the design of LPG cylinders, hence improving safety and structural comprehension.
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Copyright (c) 2025 Abdullah Nayeem , Ahmed Sakib, Rahatul Islam, Khowshik Dey, Md. Shakil Rahaman (Author)
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