paraphrasing in 3 hours

  I need someone who can paraphrase these definitions for me in 3 hours 

7)

(Proportional limit) - Limit till which stress is Proportional to strain . Linear relationship. Slope of graph in this region is a constant and is the young’s modulus. Hookes law is obeyed here. Not the same as elastic limit. This occurs first in the stress strain curve.

(Elastic limit) - Limit within which body reaches original configuration on load removal. Slope of graph is not a constant. This is not the Proportional limit. This occurs after the Proportional limit.

(Yield point)-when the specimen is loaded beyond elastic limit a short den elongation of bar takes place without appreciable increase in stress this point is known as yield point.

(Ultimate Strength) - the maximum tensile stress that a material can withstand before rupture

(Breaking strength )- the ability to withstand stress without breaking, break strength is measured as the tensile or compressive load required to fracture something. Break strength is an important consideration in the design of telecommunications conductors and cables

(modulus of elasticity)- The modulus of elasticity of a material is a measure of its stiffness. It is equal to the stress applied to it divided by the resulting elastic strain. ... By definition, a stiffer material has a higher modulus of elasticity. The modulus of elasticity of a material is a measure of its stiffness.

(toughness):  is the ability of a material to absorb energy and plastically deform without fracturing.[1] One definition of material toughness is the amount of energy per unit volume that a material can absorb before rupturing. It is also defined as a material's resistance to fracture when stressed.

(Stiffness):  is the rigidity of an object — the extent to which it resists deformation in response to an applied force

(Ductility):  is a measure of a metal's ability to withstand tensile stress—any force that pulls the two ends of a material away from each other.

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(Yield stress) is the stress induced in the specimen when the yield point is reached. Yield strength is the stress needed to be applied to the specimen in order to reach the yield point. ... The only difference being yield strength is a property of the material, whereas yield stress is just the amount of stress induced.