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This specification covers a titanium alloy in the form of bars, forgings, and stock for forging.

This specification covers a titanium alloy in the form of bars up through 4.000 inches (101.60 mm) inclusive, in nominal diameter or least distance between parallel sides, forgings of thickness up through 4.000 inches (101.60 mm), inclusive, and stock for forging of any size (See 8.6).

This specification covers a titanium alloy in the form of bars up through 4.000 inches (101.60 mm) inclusive, in nominal diameter or least distance between parallel sides, forgings of thickness up through 4.000 inches (101.60 mm), inclusive, and stock for forging of any size (see 8.6).

This specification covers a titanium alloy in the form of bars, forgings, and stock for forging.

This specification covers a titanium alloy in the form of bars up through 4.000 inches (101.60 mm) inclusive, in nominal diameter or least distance between parallel sides, forgings of thickness up through 4.000 inches (101.60 mm), inclusive, and stock for forging of any size (see 8.6).

This specification covers plain helical lock washers fabricated from heat treated carbon steel.

This specification covers plain helical lock washers made of heat treated carbon steel.

This specification covers plain helical lock washers fabricated from heat treated carbon steel.

This specification covers plain helical lock washers fabricated from heat treated carbon steel.

This specification presents requirements for a special quality of type 431 corrosion-resistant steel.

This specification presents requirements for a special quality of type 431 corrosion-resistant steel.

This specification presents requirements for a special quality of type 431 corrosion-resistant steel.

There are several fundamental problems with statistically designed acceptance tests. Two of the largest problems are the inability to obtain a random sample and the tendency of these tests to reject designs that do not significantly exceed reliability requirements. This paper explores the problems with statistically designed acceptance tests and offers an alternative.

A dynamic rollover test system (DRoTS) capable of simulating rollover crashes in a laboratory was designed for research use at the University of Virginia. The goal of the current study is to describe the system's capabilities and specifications as well as to explore the limitations of the system's ability to simulate rollover crashes. The test apparatus was designed to permit simulation of a single roof-to-ground interaction of a rollover crash with the potential to be modified for evaluation of pre-roof contact occupant motion. Special considerations were made to permit testing of both dummies and post-mortem human surrogates in both production vehicles and a parametric test buck. DRoTS permits vertical translation, pitch, and roll of the test vehicle while constraining longitudinal and lateral translations and yaw. The study details the ranges of test parameters capable with the DRoTS and evaluates the limitations of the system relative to rollover crash conditions.