Volume 2, 2009DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Page(s)||1333 - 1337|
|Published online||15 September 2009|
Shear modulus of LY12 aluminum alloy under shock loadings and quasi-elastic unloading and the constitutive relationsT. Hua, Y. Yuying, H. Jianbo and D. Chengda
Lab for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Mianyang, 621900 Sichuan, PR China
Published online: 15 September 2009
Sound velocities along the release path of an aluminum alloy were measured. Shear modulus at shock compression covering a pressure region of 20–100 GPa and the effective shear modulus along the quasi-elastic release paths were determined. New constitutive equations to characterize the shock loading and quasi-elastic unloading processes were proposed. Calculations coupled with these new constitutive relations very well reproduced the particles velocity wave profiles of this study and those of 6061-T6 Al alloy reported by Asay et al.
© EDP Sciences 2009