Define stress and explain the types of stress.

Define stress and strain?

SI units of stress is

STATEMENT - 1 : The value of modulus of elasticity depends on the magnitude of the stress and strain and STATEMENT - 2 : A given material have different moduli of elasticity depending on the type of stress applied.

Breaking stress depends on

Define the term stress for plnats .Discuss briefly the two types of stress encountered by plants .

According to Hooke's law of elasticity, if stress is increaed, the ratio of stress to strain

A massless uniform rod is subjected to froce F at its free end as shown in figure. The ratio of tensile stress at plane P_(1) to stress at P_(2) is

What is called the ratio of the breaking stress and the working stress?

According to Hooke's law, within the elastic limit stress/strain = constant. This constant depends on the type of strain or the type of force acting. Tensile stress might result in compressional or elongative strain, however, a tangential stress can only cause a shearing strain. After crossing the elastic limit, the material undergoes elongation and beyond a stage beaks. All modulus of elasticity are basically constants for the materials under stress. If stress/strain is x in elastic region and y in the region of yield, then

Define stress, strain and Young's modulus of an elastic material. Describe an experiment for measuring the Young's modulus of a material in the form of a wire.