... Richardson, Modern Ceramic Engineering, Marcel Dekker, 19 82. (d) PolymersDuPont Design Handbooks, DuPont de Nemours and Co., Polymer Products Department,Wilmington, Delaware 19 898, USA, 19 81. ICI ... more demanding struc-tural applications, have design methods evolved.In designing with ductile materials, a safety-factor approach is used. Metals can beused under static loads within a small ... pin of a pin-jointed frame, made ofmetal, fits poorly, then the metal deforms locally, and the pin beds down, redistribut-ing the load. But if the pin and frame are made of a brittle material,...