利用精炼板理论分析弹性地基上受低速冲击的双向功能分级板

IF 3.5 3区 材料科学 Q1 ENGINEERING, MECHANICAL
Maryam Ashktorab, Hamed Ahmadi, Neil Fellows, Gholamhossein Liaghat
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引用次数: 0

摘要

本研究探讨了由三种不同材料组成的双向功能分级板在受到低速冲击时的机械响应。研究利用 "新精炼板理论",探讨了位于帕斯捷尔纳克弹性地基上的板的力学行为,为工程应用提供了有用的见解。研究考察了各种参数,包括初始冲击速度、弹丸半径、体积分数指数和弹性地基刚度,以及它们对接触力、压痕、横向挠度和弹丸速度等关键响应特性的影响。通过与现有文献和数值模拟的详细比较,对理论预测进行了验证,确保了所提方法的可靠性和适用性。本研究引入了一种新方法,利用精炼板理论分析 2D-FGM 的低速冲击,为结构分析提供了实用见解。研究结果加深了对功能分级材料的理解,提高了抗冲击结构的评估能力。研究强调了各种参数在提高结构性能和可靠性方面的重要性,这些参数与航空航天、土木工程和机械工程息息相关。详细探索表明,初始冲击速度和弹丸半径会增强冲击力和挠度,而体积分数指数和地基刚度则会影响动态响应。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of bi-directional functionally graded plate on an elastic foundation subjected to low velocity impact using the refined plate theory
This study investigates the mechanical response of a bi-directional functionally graded plate consisting of three distinct materials when subjected to low-velocity impact. Utilizing the New Refined Plate Theory, the research explores the mechanical behavior of the plate resting on a Pasternak elastic foundation, providing insights useful for engineering applications. The investigation examines various parameters, including initial impact velocity, projectile radius, volume fraction indices, and elastic foundation stiffness, and their effects on critical response characteristics such as contact force, indentation, lateral deflection, and projectile velocity. The theoretical predictions are validated through detailed comparisons with existing literature and numerical simulations, ensuring the reliability and applicability of the proposed methodology. This study introduces a novel approach using refined plate theory to analyze low-velocity impact on 2D-FGMs, providing practical insights for structural analysis. The findings deepen understanding of functionally graded materials and enhance the evaluation of impact-resistant structures. The research highlights the importance of diverse parameters in improving structural performance and reliability, relevant across aerospace, civil, and mechanical engineering. Detailed exploration shows that initial impact velocities and projectile radius enhance impact force and deflection, while volume fraction indices and foundation stiffness influence the dynamic response.
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来源期刊
Journal of Sandwich Structures & Materials
Journal of Sandwich Structures & Materials 工程技术-材料科学:表征与测试
CiteScore
9.60
自引率
2.60%
发文量
49
审稿时长
7 months
期刊介绍: The Journal of Sandwich Structures and Materials is an international peer reviewed journal that provides a means of communication to fellow engineers and scientists by providing an archival record of developments in the science, technology, and professional practices of sandwich construction throughout the world. This journal is a member of the Committee on Publication Ethics (COPE).
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