This is equivalent to selecting the un cracked concrete option on the analysis parameters: On the other hand there is the group that believes that among the crack cross sections there are others that are uncracked and, hence, xc should be calculated with the homogenised cross section (xc will be the value of x1 on section B shown in the following figure): This is equivalent to selecting the cracked concrete option on the analysis parameters: On the one hand there is a current that thinks that xc should be calculated using the standard stress analysis method on concrete and consider the cross sections that coincide with the position of the cracks (xc will be the value of x2 of the cross section A shown in the following figure): There is an interesting debate in Germany about how the position of the neutral fibre (xc) should be calculated to carry out the cracking analysis of a concrete cross section.
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