please provide me with the conceptsandwich and this graph an

please provide me with the concept(sandwich and this graph) and the solutions to this question

Sida Below is a \"Modulus/Density\" dhart and it is only partly filled with matertals There are holes where o materials lie. If materials could be devised to fill them it woukd enable innovative engineering designl instend. Now there is a material couxept that could fill this gap, sandwich maberials In relation to stich graph, please describe the working prin iple of·andwich and make a sketch where its properties would be and how its resulting stiffiess would vary with your dhoice/gsometry of constitents naterlel develagment 3 5

Solution

question is not appearing and not even the graph ..please upload the q again ..it is unable to see..

i have answered it because i think u dont know that q didnt get uploaded.