Question

What is the ratio between the maximum elastic moment, MY, and the maximum plastic moment, MP, for a solid rectangular section made from a ductile, elastoplastic material? What is this ratio referred to?

Answer 1

Shape factor

Step-by-step explanation:

Shape factor is the ratio of maximum plastic moment to maximum elastic moment.Shape factor is denoted by K.

Shape factor can be given as

`K=(M_p)/(M_y)`

`K=(\sigma _yZ_p)/(\sigma _y Z)`

`K=(Z_p)/( Z)`

For a solid rectangular section made from ductile material shape factor is 1.5 .