MIL-STD 810, Method 516, Shock Testing Procedure II – Transportation Shock

This is another part of a series of blog posts concerning the MIL-STD 810 Shock Section, Method 516.  This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014.  DES has the experience and expertise to run your MIL-STD-810 test.  For more information, please check out our DES shock testing services page and our other MIL-STD-810 shock testing blog articles:

MIL-STD 810, Method 516, Shock Testing Overview

MIL-STD 810, Method 516, Shock Testing Procedure I – Functional Shock

Procedure II of Method 516 is used to evaluate the response of products to transportation environments that cause a repetitive shock load such as those occurring from ground vehicle shipping. This procedure uses the classical terminal peak sawtooth to characterize the transportation scenario.  Transportation shocks are typically repetitive low amplitude shock impulses. This procedure would be used in addition to shipping vibration testing and is not meant to be a substitute.

The items are usually tested in a packaged or unpackaged configuration in a non-operational state.  The shock test sequence is defined in Table 516.7-VI in Procedure II.  Normally, either the On-Road or Off-Road shock sequence is performed, not both.  The sequence in Table 516.7-VI is repeated along each applicable axis and direction as specified in the test plan.  After the shock testing is complete, operation of the product is verified and it is inspected for visual damage.

Table 516.7-VI Transportation shock test sequence1,2,3

MIL-STD 810

Note 1: The shocks set out in Table 516.7-VI must always be carried out together with ground transportation vibration testing as specified in Method 514.7, Category 4 and/or Category 20.

Note 2: The above tabulated values may be considered for both restrained cargo and installed materiel on wheeled and tracked vehicles. Transportation shock associated with two-wheeled trailers may exceed off-road levels as defined.

Note 3: The shock test schedule set out in Table 516.7-VI can be undertaken using either terminal peak sawtooth pulses applied in each sense of each orthogonal axis, or a synthesis based on the corresponding SRS that encompasses both senses of each axis.

Note 4: The above number of shocks is equivalent to the following distances: a) On-road vehicles: 5000 km; b) Off-road vehicles: 1000 km. If greater distances are required, more shocks must be applied in multiples of the figures above.

For more information on Shock Testing or other testing services, contact DES or call 610.253.6637.

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