TY - JOUR
T1 - Layout and material gradation in topology optimization of functionally graded structures
T2 - A global-local approach
AU - Almeida, Sylvia R.M.
AU - Paulino, Glaucio H.
AU - Silva, Emilio C.N.
N1 - Funding Information:
SRMA acknowledges the Brazilian agency CAPES for the support provided during her Sabbatical at the University of Illinois at Urbana-Champaign (UIUC) through project number 3516/06-7. GHP acknowledges FAPESP for awarding him a Visiting Scientist position at the University of São Paulo (USP) through project number 2008/51070-0. ECNS thanks the Brazilian agencies FAPESP (project number 06/57805-7) and CNPq (project number 303689/2009-9), and the UIUC for inviting him as a Visiting Professor during the Summer/2007.
PY - 2010/12
Y1 - 2010/12
N2 - By means of continuous topology optimization, this paper discusses the influence of material gradation and layout in the overall stiffness behavior of functionally graded structures. The formulation is associated to symmetry and pattern repetition constraints, including material gradation effects at both global and local levels. For instance, constraints associated with pattern repetition are applied by considering material gradation either on the global structure or locally over the specific pattern. By means of pattern repetition, we recover previous results in the literature which were obtained using homogenization and optimization of cellular materials.
AB - By means of continuous topology optimization, this paper discusses the influence of material gradation and layout in the overall stiffness behavior of functionally graded structures. The formulation is associated to symmetry and pattern repetition constraints, including material gradation effects at both global and local levels. For instance, constraints associated with pattern repetition are applied by considering material gradation either on the global structure or locally over the specific pattern. By means of pattern repetition, we recover previous results in the literature which were obtained using homogenization and optimization of cellular materials.
KW - Functionally graded materials
KW - Functionally graded structures
KW - Material gradation
KW - Material layout
KW - Symmetry and pattern repetition constraints
KW - Topology optimization
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U2 - 10.1007/s00158-010-0514-x
DO - 10.1007/s00158-010-0514-x
M3 - Article
AN - SCOPUS:78049360343
SN - 1615-147X
VL - 42
SP - 855
EP - 868
JO - Structural and Multidisciplinary Optimization
JF - Structural and Multidisciplinary Optimization
IS - 6
ER -