Strain Rate

The rate of lineal change per unit length.

Street Access

Areas normally used for public vehicular traffic (including roads, streets, or rights-of-way) to which safe access is required for performance of work.

Stress

The load applied per unit area of material. Often expressed as pounds of force per square inch (psi).

Stress Corrosion Cracking (SCS)

Cracking of a metal produced by the combined action of corrosion and tensile stress (residual or applied).

Stress Life Curves

Graphic representations showing the extrapolation to 100,000 hours of applied hoop stress versus hours to failure data on logarithmic scales per ASTMAmerican Society of Testing and Materials; technical organization formed for the development of standards on characteristics and performance of materials, products, systems and services, and the promotion of related knowledge. D 2837.