TY - JOUR
T1 - Reliability of imperfection-sensitive composite shells via the Koiter-Cohen criterion
AU - Cederbaum, Gabriel
AU - Arbocz, Johann
N1 - Funding Information:
This work has been supported in part by NASA Langley Research Center under grant NAGW-2736. G.C. wishes to express his sincere appreciation to the Structures Group in the Faculty of Aerospace Engineering of the Delft University of Technology for their warm and kind hospitality during his sabbatical stay. The authors wish to thank the reviewers for their constructive comments.
PY - 1997/1/1
Y1 - 1997/1/1
N2 - The reliability of imperfection-sensitive shells is derived within the Koiter-Cohen modified criterion for anisotropic materials. While previous works on this problem considered mainly the effect of the initial imperfection, the authors of this work investigated recently the additional contribution of the loading randomness. Here, we also consider the randomness of the system in the reliability derivation. That is, randomness associated with the material, the geometry, the boundary conditions and the manufacturing uncertainties. The various numerical results, obtained within the Hasofer-Lind method, indicate the great importance of the system randomness, implying major variations in the reliability with respect to the traditional derivations.
AB - The reliability of imperfection-sensitive shells is derived within the Koiter-Cohen modified criterion for anisotropic materials. While previous works on this problem considered mainly the effect of the initial imperfection, the authors of this work investigated recently the additional contribution of the loading randomness. Here, we also consider the randomness of the system in the reliability derivation. That is, randomness associated with the material, the geometry, the boundary conditions and the manufacturing uncertainties. The various numerical results, obtained within the Hasofer-Lind method, indicate the great importance of the system randomness, implying major variations in the reliability with respect to the traditional derivations.
UR - http://www.scopus.com/inward/record.url?scp=0031152779&partnerID=8YFLogxK
U2 - 10.1016/S0951-8320(96)00018-X
DO - 10.1016/S0951-8320(96)00018-X
M3 - Article
AN - SCOPUS:0031152779
SN - 0951-8320
VL - 56
SP - 257
EP - 263
JO - Reliability Engineering and System Safety
JF - Reliability Engineering and System Safety
IS - 3
ER -