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Free material optimization for stress constraints
Structural and Multidisciplinary Optimization, 2007zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kočvara, Michal, Stingl, Michael
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Stress constraints in optimality criteria design
23rd Structures, Structural Dynamics and Materials Conference, 1982Procedures described emphasize the processing of stress constraints within optimality criteria designs for low structural weight with stress and compliance constraints. Prescreening criteria are used to partition stress constraints into either potentially active primary sets or passive secondary sets that require minimal processing.
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39th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and Exhibit, 1998
An element stress recovery technique is proposed for accurate boundary stress extraction. The equilibrium constraint is imposed using two residuals of the equilibrium in variational forms. For the recovery stress fields, only a dominant stress component is assumed as higher order, and all other components are assumed as high as the order of the assumed
Hoon Cheol Park, Sahng-Hoon Shin
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An element stress recovery technique is proposed for accurate boundary stress extraction. The equilibrium constraint is imposed using two residuals of the equilibrium in variational forms. For the recovery stress fields, only a dominant stress component is assumed as higher order, and all other components are assumed as high as the order of the assumed
Hoon Cheol Park, Sahng-Hoon Shin
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Optimal elastic design for stress constraints
Computers & Structures, 1978Abstract A modified version of the Prager-Shield theory of optimal plastic design is applied to elastic structures which are designed for stress criteria. It is shown in the context of Bernoulli beams that the optimal solution for statically indeterminate structures, in general, consists of fully stressed and understressed segments and that the ...
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New approximation method for stress constraints in structural synthesis
AIAA Journal, 1987A new approximation method for dealing with stress constraints in structural synthesis is presented. The finite element nodal forces are approximated and these are used to create an explicit, but often nonlinear, approximation to the original problem. The principal motivation is to create the best approximation possible, in order to reduce the number ...
GARRET VANDERPLAATS, EYSA SALAJEGHEH
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Topology optimization of continuum structures with local stress constraints
International Journal for Numerical Methods in Engineering, 1998Summary: We introduce an extension of current technologies for topology optimization of continuum structures which allows for treating local stress criteria. We first consider relevant stress criteria for porous composite materials, initially by studying the stress states of the so-called rank 2 layered materials.
Duysinx, Pierre, Bendsoe, Martin Philip
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A comparison of optimality criteria methods for stress and displacement constraints
35th Structures, Structural Dynamics, and Materials Conference, 1994zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhou, M., Haftka, R. T.
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Behaviour of trusses with stress and displacement constraints
Computers & Structures, 1986Abstract The truss behaviour is studied for simulataneous stress and displacement constraints under single and multiple load conditions. It is shown that among the ( m + n ) stress and displacement constraints of a design (in which member areas are variables) only m constraints are independent.
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Three-dimensional stress constraint in an elastic plate with a notch
International Journal of Solids and Structures, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kotooussov, A., Wang, C.
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Optimum Design of Composite Structures with Stress and Displacement Constraints
AIAA Journal, 1975A based on an optimality criterion is presented for designing minimum weight fiber reinforced composite structures with stress and displacement constraints. A recurrence relation based on an optimality criterion is used to modify the design variables during the iterative procedure. The displacement method of finite element analysis is used to determine
N. KHOT, V. VENKAYYA, L. BERKE
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