MICROMECHANICS, FRACTURE MECHANICS AND GAS PERMEABILITY OF
 COMPOSITE LAMINATES FOR CRYOGENIC STORAGE SYSTEMS
















 By

 SUKJOO CHOI


A DISSERTATION PRESENTED TO THE GRADUATE SCHOOL
OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT
 OF THE REQUIREMENTS FOR THE DEGREE OF
 DOCTOR OF PHILOSOPHY

 UNIVERSITY OF FLORIDA


2005