Permanent deformation during the oblique impact with friction

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• 作者：Hamid Ghaednia ; Dan B. Marghitu
• 关键词：Oblique impact ; Deformation patterns ; Sliding length ; Sliding direction ; Impact duration ; Impact force ; Profilometry ; Coefficient of restitution
• 刊名：Archive of Applied Mechanics (Ingenieur Archiv)
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：86
• 期：1-2
• 页码：121-134
• 全文大小：2,746 KB
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• 作者单位：Hamid Ghaednia (1)
  Dan B. Marghitu (1)
  
  1. Department of Mechanical Engineering, 1418 Wiggins Hall, Auburn University, Auburn, AL, 36849-5341, USA
  
• 刊物类别：Engineering
• 刊物主题：Theoretical and Applied Mechanics
  Mechanics
  Complexity
  Fluids
  Thermodynamics
  Systems and Information Theory in Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-0681

文摘

In this study, the displacement during the oblique impact of a rigid rod with a deformable flat has been studied. An approach has been developed in order to relate the impact duration, the normal permanent deformation and the sliding length during the impact. The same impact has been analyzed using the numerical simulations, and the theoretical and numerical results have been compared. An experimental setup was built to measure the motion of the rod before and after the impact. The deformation region after the impact was scanned and measured. Using the experimental results and the calculated impact duration, an average normal contact force was calculated. The presented approach yields to more accurate results compared to the direct integration of equations of motion using selected quasi-static contact models.