13 High Strain Rate Tension Experiments Features …
217
• High rate tension tests of short (gauge length 5 mm, diameter 6 mm) specimen
made of copper M1 were performed. Non-uniformity of stresses and strains in
working part occurs due to closure of fixing parts.
• High rate tension of EP-718 alloy. The deformation of working part is mainly
uniform until fracture occurs.
• High rate tension of aluminum alloy 1575 was carried out. Pronounced strain
localization occurs.
The diagrams obtained for specimens described above are shown in Figs. 13.30,
13.31 and 13.32. They are compared with curves constructed using the traditional
procedure which does not account for strain localization (solid blue lines). Dashed
lines correspond to strain rate histories.
Fig. 13.30 High rate tension diagram of cupper M1
Fig. 13.31 High rate tension diagram of EP-718 alloy
217
• High rate tension tests of short (gauge length 5 mm, diameter 6 mm) specimen
made of copper M1 were performed. Non-uniformity of stresses and strains in
working part occurs due to closure of fixing parts.
• High rate tension of EP-718 alloy. The deformation of working part is mainly
uniform until fracture occurs.
• High rate tension of aluminum alloy 1575 was carried out. Pronounced strain
localization occurs.
The diagrams obtained for specimens described above are shown in Figs. 13.30,
13.31 and 13.32. They are compared with curves constructed using the traditional
procedure which does not account for strain localization (solid blue lines). Dashed
lines correspond to strain rate histories.
Fig. 13.30 High rate tension diagram of cupper M1
Fig. 13.31 High rate tension diagram of EP-718 alloy