Curtis_Hooper_BSSM2019.pdf (662.45 kB)
An experimental and theoretical study of longitudinal bulk strain waves generated by fracture
conference contribution
posted on 2019-06-07, 08:34 authored by Curtis Hooper, Pablo RuizPablo Ruiz, Karima KhusnutdinovaKarima Khusnutdinova, Jonathan M. HuntleyFrom 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 MechanicsCitation
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
2019-03-29Publication date
2019Publisher version
Language
- en