Abradable material and design for jet engine applications

A method for preparing an abradable panel for a rub strip of a fan case of a gas turbine engine, comprising:

• forming an abradable material into a plurality of panels each comprising an abradable structure;
• curing the abradable material in the plurality of panels;
• and
• installing the plurality of panels into the fan case, wherein the forming step comprises providing a mixture of an organic polymer, and an organic or inorganic filler distributed through the organic polymer, and curing the mixture to form the abradable material wherein the organic polymer is transformed into an organic matrix with the filler distributed through the organic matrix, and wherein the abradable material has a compression spring rate profile comprising:
• less than 50,000 lb/in at −65° F.,
• less than 35,000 lb/in at room temperature, and
• less than 35,000 lb/in at 200° F.