Curtis_Hooper_BSSM2019.pdf (662.45 kB)
Download file

An experimental and theoretical study of longitudinal bulk strain waves generated by fracture

Download (662.45 kB)
conference contribution
posted on 07.06.2019, 08:34 by Curtis Hooper, Pablo RuizPablo Ruiz, Karima KhusnutdinovaKarima Khusnutdinova, Jonathan M. Huntley
From a dipole lattice model, we derive a Boussinesq-type equation that governs the propagation of a longitudinal strain wave in a uniform pre-strained bar with constant cross section. We then describe an experiment based on high-speed, single-point photoelasticity to measure strain waves in a Polymethylmethacrylate (PMMA) bar generated when it breaks whilst undergoing a tensile test. The experimental results are finally compared to the model predictions, showing a good correspondence in terms of wave propagation, strain rate at the leading edge and amplitude and frequency of the following ripple.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

14th International Conference on Advances in Experimental Mechanics

Citation

HOOPER, C.G. ... et al., 2019. An experimental and theoretical study of longitudinal bulk strain waves generated by fracture. Presented at the 14th International Conference on Advances in Experimental Mechanics, Belfast, Ireland, 10th - 12th September 2019.

Publisher

British Society for Strain Measurement (BSSM)

Version

AM (Accepted Manuscript)

Acceptance date

29/03/2019

Publication date

2019

Language

en

Location

Belfast, Ireland

Usage metrics

Keywords

Exports