AIAA 2001-1207 Optimal Weight of Cracked Composite Panels By An Equivalent Strain Constraint Melih Papila, Roberto Vitali, Raphael T. Haftka, and Bhavani V. Sankar Department of Aerospace Engineering, Mechanics and Engineering Science University of Florida, Gainesville Session MDO for Composite Materials (SDM-04) 12:00pm For permission to copy or republish, contact the American Institute of Aeronautics and Astronautics, 1801 Alexander Bell Drive, Suite 500, Reston, Virginia 20191-4344. 42nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and Exhibit 16- 19 Apr 2001 / Seattle, Washington