0
research-article

Polymer Modulus of Elasticity and Hardness from Impact Data

[+] Author and Article Information
Hany A. Sherif

Professor, Department of Mechanical Engineering, College of Engineering-Qassim University, P.O. Box 6677, Buraidah 51452, Saudi Arabia
hasherif@qec.edu.sa

Fahad AlMufadi

Associate Professor, Department of Mechanical Engineering, College of Engineering-Qassim University, P.O. Box 6677, Buraidah 51452, Saudi Arabia
almufadi@qec.edu.sa

1Corresponding author.

ASME doi:10.1115/1.4040830 History: Received March 22, 2018; Revised July 04, 2018

Abstract

The present paper introduces a simple method to predict the modulus of elasticity and the hardness of polymeric materials that range from soft elastomers to hard plastics. Hertzian elastic impact model is used to define the relationship between the contact time duration and the maximum force of normal contact due to the impact of a hard sphere indenter with the tested polymer sample. It is shown that the adopted model and experimental method can be used as a tool for extracting the magnitude of the complex modulus of elasticity. Moreover, a new impact index is shown to be proportional to the polymer Shore hardness. Theoretical and experimental results based on the force-time signals are consistent and show good correlation.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In