Units of Stress
There are various units in which stress is measured. Some of the most common units of stress are listed in the table below:
System | Unit of Stress |
---|---|
SI system | N/m2 or N/mm2 |
Fundamental system | kg.m-1.s-2 |
US unit | lbf/ft2 |
SI System for measuring larger values of stress.
- Kilo (103): KN/m2 or KN/mm2
- Mega (106): MN/m2 or MN/mm2
- Giga (109): GN/m2 or GN/mm2
- Tera (1012): TN/m2 or TN/mm2
What is Stress?
Stress in physics is defined as the force exerted on the unit area of a substance. Stress affects the body as strain in which the shape of the body changes if the stress is applied and sometimes it gets permanently deformed. On the basis of the direction of force applied to the body, we can categorize stress into three categories that include,
- Longitudinal Stress
- Bulk Stress
- Shearing Stress
Apart from these three, there are also other types of stress that we will learn in this article. In this article, we will also learn about what is stress, the types of stress, the Formula for stress, the unit of stress, and others in detail.
Table of Content
- What is Stress?
- Stress Formula
- Units of Stress
- Types of Stress
- Stress and Strain
- Hooke’s Law