Figure 3.
Drop tower impact tests: load-displacement curves for different energy levels: 2.2 J (DT_E1), 3.2 J (DT_E2) and 4.2 J (DT_E3), respectively.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.