TY - GEN
T1 - Approximations for warp free laminate configurations
AU - Weaver, Paul M.
AU - O'Donnell., Matthew P.
AU - York, Christopher B.
PY - 2010
Y1 - 2010
N2 - The relationship between laminates exhibiting thermal warping characteristics and the required strain in flattening a warped plate is described. Upper limits on these strains are proposed and subsequently used to define the boundaries of a feasible region from which coupled laminates approximating a warp free condition may be safely chosen. The study also characterizes the growth of this feasible region as a function of the allowable strain for laminates with standard ply angles (±45, 0 and 90°), for all possible layups with up to 10 plies. The results show that symmetric configurations significantly reduce design freedom, particularly as the number of plies increase. A simple, yet intuitive, design approach incorporating nonsymmetric subsequences is therefore developed
AB - The relationship between laminates exhibiting thermal warping characteristics and the required strain in flattening a warped plate is described. Upper limits on these strains are proposed and subsequently used to define the boundaries of a feasible region from which coupled laminates approximating a warp free condition may be safely chosen. The study also characterizes the growth of this feasible region as a function of the allowable strain for laminates with standard ply angles (±45, 0 and 90°), for all possible layups with up to 10 plies. The results show that symmetric configurations significantly reduce design freedom, particularly as the number of plies increase. A simple, yet intuitive, design approach incorporating nonsymmetric subsequences is therefore developed
UR - http://www.scopus.com/inward/record.url?scp=84855636554&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84855636554
SN - 9781600867422
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
BT - 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
T2 - 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Y2 - 12 April 2010 through 15 April 2010
ER -