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Stress is resistance offered by material to the applied forces. it can be defined as ration of applied load to the cross sectional area of material. 'Stress can be categorized into following types:'Italic text' (1) Tensile stress (2) Compression stress (3) Shear stress (1) tensile stress: it is the stress induced along the applied forces as way from each other. (2) Compressive stress: two forces acting away from each other[1]
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Stress-strain_diagram_HU.svg/220px-Stress-strain_diagram_HU.svg.png)
https://commons.wikimedia.org/wiki/File:Badger_collecting_bedding_material.webm
- ^ Stress is often defined as the physical and psychological result of internal or external pressures. Research has linked stress to more diseases than any other biopsychological factor. In particular, stress has been connected to the development of CHD