Question

3. Define (a) Ultimate stress and (b) Factor of safety
(April May 2015
wrong answer will be reported​

Answer 1

Answer:

((a)) Ultimate tensile strength, often shortened to tensile strength, ultimate strength, or within equations, is the maximum stress that a material can withstand while being stretched or pulled before breaking. ((b)) There are two definitions for the factor of safety (FoS): The ratio of a structure's absolute strength (structural capability) to actual applied load; this is a measure of the reliability of a particular design. ... This can be referred to as a design factor, design factor of safety or required factor of safety.

Answer 2

Ultimate tensile strength, often shortened to tensile strength, ultimate strength, or within equations, is the maximum stress that a material can withstand while being stretched or pulled before breaking.

Factor of safety, also known as safety factor, expresses how much stronger a system is than it needs to be for an intended load.