Dynamic plasticity of beryllium in the inertial fuel fusion capsule regime

Details Dynamic plasticity of beryllium in the inertial fuel fusion capsule regime Dynamic plasticity of beryllium in the inertial fuel fusion capsule regime

2007-11-19

arxiv.org/abs/0711.3017v2

Physics

Condensed Matter

Materials Science

Scientific paper

The plastic response of beryllium was investigated during loading by laser-induced shock waves, using surface velocimetry and in-situ x-ray diffraction. Results from loading by thermal x-rays (hohlraum) were consistent with more extensive studies using laser ablation. Strong elastic waves were observed, up to ~1 km/s in free surface speed, with significant structure before the arrival of the plastic shock. The magnitude and shape of the precursor could be reproduced with a plasticity model based on dislocation dynamics. Changes in lattice spacing measured from the x-ray diffraction pattern gave a direct measurement of uniaxial compression in the elastic wave, triaxial flow from the decay of the precursor, and triaxial compression in the plastic shock; these were consistent with the velocity data. The dynamic strength behavior deduced from the laser experiments was used to help interpret surface velocity data around the onset of shock-induced melting. A model of heterogeneous mixtures is being extended to treat anisotropic components, and spall.

Affiliated with

Also associated with

No associations

Rating

Dynamic plasticity of beryllium in the inertial fuel fusion capsule regime does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dynamic plasticity of beryllium in the inertial fuel fusion capsule regime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic plasticity of beryllium in the inertial fuel fusion capsule regime will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-391385