Imperial College London
Alternate

John P. Dear FREng

Faculty of Engineering, Department of Mechanical Engineering

Professor of Mechanical Engineering
 
 
 
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Contact

 

j.dear Website

 
 
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Location

 

520City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Liu:2020:10.1016/j.ijlmm.2020.05.005,
author = {Liu, H and Liu, J and Ding, Y and Zheng, J and Luo, L and Kong, X and Zhou, J and Blackman, B and Kinloch, A and Dear, J},
doi = {10.1016/j.ijlmm.2020.05.005},
journal = {International Journal of Lightweight Materials and Manufacture},
pages = {403--415},
title = {Modelling the effect of projectile hardness on the impact response of a woven  carbon-fibre reinforced thermoplastic-matrix composite},
url = {http://dx.doi.org/10.1016/j.ijlmm.2020.05.005},
volume = {3},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In the present paper numerical modelling results are described to predict the effects of the hardness of a projectile impacting a woven carbon-fibre reinforced thermoplastic-matrix composite. The projectiles are prepared from either relatively soft gelatine or hard high-density polyethylene (HDPE) materials, of the same mass, and are fired from a gas-gun at about 60 m s−1 to impact a woven carbon-fibre reinforced poly(ether-ether ketone) (woven CF/PEEK) composite. A two-dimensional, elastic, finite-element analysis (FEA) model is developed to simulate the gas-gun impact experiments and study the impact damage processes, and this numerical model is relatively computationally efficient. This FEA model makes predictions for the plastic flow for the gelatine projectile and the elastic deformation of the polyethylene projectile. In addition, the model predicts the effects of the hardness of the projectile on (a) the deformation of the impacted composite specimens and (b) the location and extent of damage in the composites. Very good agreement between the predictions from the model and the experimental measurements is observed. This research is of key importance in studying the behaviour of thermoplastic-matrix composites under impact loading by various types of threat such as relatively soft bodies, e.g. birds and hard objects, e.g. dropped-tools and runway debris.
AU  - Liu,H
AU  - Liu,J
AU  - Ding,Y
AU  - Zheng,J
AU  - Luo,L
AU  - Kong,X
AU  - Zhou,J
AU  - Blackman,B
AU  - Kinloch,A
AU  - Dear,J
DO  - 10.1016/j.ijlmm.2020.05.005
EP  - 415
PY  - 2020///
SN  - 2588-8404
SP  - 403
TI  - Modelling the effect of projectile hardness on the impact response of a woven  carbon-fibre reinforced thermoplastic-matrix composite
T2  - International Journal of Lightweight Materials and Manufacture
UR  - http://dx.doi.org/10.1016/j.ijlmm.2020.05.005
UR  - http://hdl.handle.net/10044/1/80730
VL  - 3
ER  -
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