<P> Young 's modulus is the ratio of stress ( which has units of pressure ) to strain ( which is dimensionless ) , and so Young 's modulus has units of pressure . Its SI unit is therefore the pascal ( Pa or N / m or kg m s ) . The practical units used are megapascals ( MPa or N / mm ) or gigapascals ( GPa or kN / mm ) . </P>
<P> Young 's modulus is the ratio of stress ( which has units of pressure ) to strain ( which is dimensionless ) , and so Young 's modulus has units of pressure . Its SI unit is therefore the pascal ( Pa or N / m or kg m s ) . The practical units used are megapascals ( MPa or N / mm ) or gigapascals ( GPa or kN / mm ) . </P>
what are the units of stress strain and young 's modulus
what are the units of stress strain and young 's modulus
megapascals ( MPa or N / mm ) gigapascals ( GPa or kN / mm )
megapascals ( MPa or N / mm ) gigapascals ( GPa or kN / mm )