缝缝夹层破损后发生新冲击可能性的诊断研究

Q1 Engineering
Amina Assouli, Bounoua Tab, Fodil Hammadi, Mohammad Mahdi Kheirikhah, Ahmed Tafraoui
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引用次数: 0

摘要

在过去的几十年里,三明治结构在抗冲击和损伤容限方面表现出了令人印象深刻的性能,这使得它们在各个学科的创新蓬勃发展。缝纫三明治的诞生,一方面提供了具有结构核心的元素,参与抵抗横向剪切,另一方面,三明治表皮有助于抵抗来自同一方向的力,以实现组装,使结构具有最佳的轻盈性。在评估了结构的抗冲击性能后,本研究建议从评估不同能量冲击的损伤效果入手。然后,将检查它们对结构的力学性能及其承受一次或多次新冲击的能力的影响。为此,通过使用显微镜,在第一次撞击后对每个样本进行诊断测试,然后通过基于振动分析的非破坏性测试进行表征,以便检查和比较健康斑块与受影响斑块的特性。试验在尺寸为150 × 200 × (1.5 + 20 + 1.5 = 23) mm3的样品上进行。使用PULSE专业软件获得的结果鼓励了对这些样品的第二系列影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Diagnostic Study of the Possibility of Damaged Sewn Sandwiches to Undergo a New Impact
Over the past decades, sandwich structures have shown impressive performances in impact resistance and damage tolerance, which has allowed their innovations in various disciplines to flourish. The birth of sewn sandwiches has given, on the one hand, elements with structural cores that participate in the resistance to transverse shearing and, on the other hand, sandwich skins that contribute to resisting forces from the same direction to achieve an assembly, giving the structure an optimal lightness. After evaluating the behavior of said structure against impact stresses, in this study, it is proposed to start by evaluating the effect of damage caused by impacts of different energies. Then, their influence on the structure's mechanical properties and its ability to undergo one or more new impacts will be checked. For this, by using a microscope, diagnostic tests have been carried out for each sample after the first impact, followed by characterization by non-destructive tests based on vibration analysis in order to examine and compare the properties of a healthy plaque with those of the affected plaques. The tests are carried out on samples of dimensions 150 × 200 × (1.5 + 20 + 1.5 = 23) mm3. The results obtained by using the specialized software PULSE have encouraged a second series of effects on these samples.
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来源期刊
CiteScore
2.90
自引率
0.00%
发文量
34
期刊介绍: The International Review of Civil Engineering (IRECE) is a peer-reviewed journal that publishes original theoretical papers, applied papers, review papers and case studies on all fields of civil engineering. The scope of the Journal encompasses, but is not restricted to the following areas: infrastructure engineering; transportation engineering; structural engineering (buildings innovative structures environmentally responsive structures bridges stadiums commercial and public buildings, transmission towers, television and telecommunication masts, cooling towers, plates and shells, suspension structures, smart structures, nuclear reactors, dams, pressure vessels, pipelines, tunnels and so on); earthquake, hazards, structural dynamics, risks and mitigation engineering; environmental engineering; structure-fluid-soil interaction; wind engineering; fire engineering; multi-scale analysis; constitutive modeling and experimental testing; construction materials; composite materials in engineering structures (use, theoretical analysis and fabrication techniques); novel computational modeling techniques; engineering economics. The Editorial policy is to maintain a reasonable balance between papers regarding different research areas so that the Journal will be useful to all interested scientific groups.
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