Constituent Properties and Interrelationships

The requirements and recommendations of constituent properties and relationships are: (1) goals/requirement statement; (2) better operational definition of toughness; (3) assess limitations of current micromechanics models/procedures; (4) explicity assess currently known resin toughening mechanisms and determine their relative importance to matrix resins; (5) method to define the interphase region in situ; (6) assess thermodynamic compatibility of any new resin with the fiber; and (7) model polymer systems.