There’s an old saying “If the only tool you have is a hammer, then all of your problems start to look like nails.”
In the old days of shock testing (writer spits into spittoon) all we had was drop table test machines. 1/2 sine shock pulses were easy to perform (just use rubber under the table), they looked good in the report (when you filtered the heck out of them), and they were absolutely repeatable.
If there is anything an engineer likes better then accuracy in Half Sine Shock Pulse Testing, it’s repeatability.
But what is our excuse today? If we are really interested in finding out how our designs will stand up to real world shocks, why would we use a shock pulse for our testing which never appears in the real world?
Passing a 1/2 sine shock test will NOT indicate that your product will survive the shocks encountered in use and in transportation, nor does failing the test tell you very much useful either, yet these tests are still performed routinely around the world.
It looks like another case of “We’ve always done it this way.”
We live in the era of “Test Tailoring”. It is NOT a big issue to instrument a package, and (gasp) take measurements! Use those measurements to determine a realistic reliability test requirement. Then you are performing useful testing.