The revised contract covered the following phases and tasks:nPhase B, Task 4. To develop a system of mathematical solutions and computer programs for one (1) dimensional analysis and for two (2) dimensional analysis.nPhase D. Adapt Phase B system of mathematical solution of temperature change, stress and strain to refrac¬tory metal alloys Cb752 and Ta222 as have been developed for aluminum.nPhase E. Perform a mathematical study of bending stresses and distortion of 2219-T87 in the thickness direction-aluminum only.nPhase F. Perform a mathematical study of thermal stresses and metal movement in joining thin cylindri¬cal shells-theoretical portion only.nIn June 1973, the program has been further expanded to include:nPhase G. Perform experiments on thermal stresses and metal movement in joining thin cylindrical shells.
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