Back to Search Start Over

Quantitative evaluation of the mechanical strength of titanium/composite bonding using laser-generated shock waves.

Authors :
Ducousso, M.
Bardy, S.
Rouchausse, Y.
Bergara, T.
Jenson, F.
Berthe, L.
Videau, L.
Cuvillier, N.
Source :
Applied Physics Letters; 3/12/2018, Vol. 112 Issue 11, p1-1, 1p, 1 Chart, 2 Graphs
Publication Year :
2018

Abstract

Intense acoustic shock waves were applied to evaluate the mechanical strength of structural epoxy bonds between a TA6V4 titanium alloy and a 3D woven carbon/epoxy composite material. Two bond types with different mechanical strengths were obtained from two different adhesive reticulations, at 50% and 90% of conversion, resulting in longitudinal static strengths of 10 and 39 MPa and transverse strengths of 15 and 35 MPa, respectively. The GPa shock waves were generated using ns-scale intense laser pulses and reaction principles to a confined plasma expansion. Simulations taking into account the laser–matter interaction, plasma relaxation, and non-linear shock wave propagation were conducted to aid interpretation of the experiments. Good correlations were obtained between the experiments and the simulation and between different measurement methods of the mechanical strength (normalized tests vs laser-generated shock waves). Such results open the door toward certification of structural bonding. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00036951
Volume :
112
Issue :
11
Database :
Complementary Index
Journal :
Applied Physics Letters
Publication Type :
Academic Journal
Accession number :
128520017
Full Text :
https://doi.org/10.1063/1.5020352