Next, we consider the timber beam reinforced with the CFRP plate. We will transform the CFRP material (2) into an equivalent amount of timber (1).
To transform one material into an equivalent amount of a second material, first compute the ratio of the two elastic moduli. This modular ratio n should be set up with the elastic modulus of the material being transformed in the numerator and the elastic modulus of the unchanged material in the denominator:
The modular ratio for changing CFRP (2) into timber (1) is:
