Section Modulus calculation and optimization
Section Modulus:-It is geometric property use to calculate bending stress in strectural member.
Mathematically- It is define as the ratio of the moment of innertia of the section about centroidal axis and to the distance of extreme layer from natural axis.
Comparision of MOI between Section 1 & section 2:-
Section 1 - section view as shown, the distance between outer pannel and inner pannel are 1.7mm

Section 2 - section view as shown, the distance between outer pannel and inner pannel are 2mm

Analysis report in pdf file & nx zip file attached.
Conclusion :-
- In section 1 MOI max.= 814120.545 mm4, MOI min.=3922.526 mm4 & cross section area=40.170 mm2
- In section 2 MOI max.= 812885.029 mm4, MOI min.=3923.069 mm4 & cross section area=40.148 mm2
- To increase gap between inner pannel & outer pannel MOI is reduces
- Means bending strength of object is reduces.