**Tensile Stress**

Consider a bar of cross sectional area A being subjected to equal and opposite forces F pulling at the ends. If this were a rope, we would say that it is experiencing a tension force. Taking this concept over, we say that the bar is under tension, and is experiencing a stress that we define to be the ratio of the force to the cross sectional area

Stress = F/A (62)

This stress is called the tensile stress because every part of the object is subjected to a tension. The SI unit of stress is the Newton per square meter, which is called the Pascal 1 Pascal = 1 Pa = 1 N/m2

Shear Stress and Strain

Now consider a force that is applied tangentially to an object

The ratio of the shearing force to the area A is called the shear stress

If the object is twisted through an angle q, then the strain is

Shear Strain = tanq Finally, we can define the shear modulus, MS, as

The shear modulus is also known as the torsion modulus

Read more about this topic: Stress–strain Curve

### Other articles related to "tensile stress, stress, tensile":

... Smaller precipitate particles in a host lattice leads to a

**tensile stress**, whereas larger precipitate particles leads to a compressive

**stress**... Dislocation defects also create a

**stress**field ... Above the dislocation there is a compressive

**stress**and below there is a

**tensile stress**...

... Pb 3 ... Sn56Pb39Ag5 Pb 5 ... Sn98Ag2 – 2 ... Sn65Ag25Sb10 233 – yes Very high

**tensile**strength ... The resulting joints have high tolerance to vibration and

**stress**, with

**tensile**strengths to 30,000 psi on Stainless ... joints have high tolerance to vibration and

**stress**, with

**tensile**strengths to 31,000 psi on Stainless ...

### Famous quotes containing the word stress:

“Like all weak men he laid an exaggerated *stress* on not changing one’s mind.”

—W. Somerset Maugham (1874–1966)