|
|
|
|
|
|
|
|
Title
|
Effect of experimental conditions on nanoindentation response of low density polyethylene (LDPE)
|
|
Sub-Title |
|
|
Subject |
Amplitude; frequency; strain rate , creep , nanoindentation , LDPE , modulus , hardness
|
|
Sub-Subject |
|
|
Author |
Saima Yasina, Ahmad Shakeela,b, Tanveer Iqbala, Fa
|
|
Publish Year |
2019 |
|
Supervisor |
|
|
Diss#. |
https://doi.org/10.1080/10601325.2019.1593791 |
|
Chapters |
|
|
Pages |
|
|
Text Language |
English |
|
Accession |
|
|
Library Section |
Research Article |
|
Abstract |
Nano-indentation is an interesting tool for analyzing nano-scale mechanical properties. The
analysis of nano-mechanical properties as a function of experimental conditions is very critical for
designing engineering components. In this study, nano-indentation experiments were performed
by considering different values of amplitude (1, 5, 10 nm), frequency (11.2, 22.5, 45 Hz), strain rate
(0.02, 0.05, 0.1, 0.2, 1 s1), peak load (10, 30, 100 mN) and hold time (1, 3, 5, 10, 20, 50, 100 sec) to
analyze their effect on the mechanical properties of LDPE. The results showed that the effect of
amplitude and frequency on the nano-mechanical properties of LDPE were negligible. Load-displacement
curves displayed a shift towards higher indentation depths along with a decrease in
peak load from 20.6 to 14.8mN by having a decrease in strain rate from 1 to 0.02 s1. Elastic
modulus and hardness values exhibited a decrease with an increase in hold time. Logarithmic
creep model was used to fit the experim
|
|
Catalogue
|
Books
|
|
Periodicals
|
Newspapers
|
Publications
|
|
Research Papers
|
|
|
|
|