Abstract: An energy absorbing support formed of a composite coil defining a core and a tubular sheath with the sheath being formed of a material having a higher elastic yield strain limit than that of the core. The coil defines a first portion and a second portion with a support of the coil disposed intermediate the first and second portions. Structure is provided for applying a preselected preload to the coil. The coil materials are preselected to maintain elastic and damping characteristics at cryogenic temperatures, such as below -150.degree. F. The support is adapted for use in rigorous environments such as encountered in the space shuttle and the like, and provides lightweight, long life, resilient support of critical elements, such as piping and the like, therein.

Abstract: An ultrahigh strength material made from ordinary 18-8 stainless steel has a tensile strength in excess of 400,000 p.s.i. The method of producing the ultrahigh strength is accomplished by thermo-mechanical operations. The material can have any desired geometric cross section configuration and is adaptable for use as a spring material.