BuildingsInelastic displacement ratios are critical parameters in the seismic design of reinforced concrete (RC) box girder bridges. Existing approaches of displacement prediction, including the Displacement Coefficient Method and the Capacity Spectrum Method ...
Bigya Gyawali +3 more
doaj +1 more source
Simplified cyclic structural analyses of SSME turbine blades [PDF]
Anisotropic high-temperature alloys are used to meet the safety and durability requirements of turbine blades for high-pressure turbopumps in reusable space propulsion systems.
Kaufman, A., Manderscheid, J. M.
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An approximate procedure for estimating seismic demands for buildings
MATEC Web of Conferences, 2017 Methods of the estimation of the seismic demands of nonlinear structures require a sort of iterative procedures, no matter the elastic or inelastic response spectra are used in the procedure. Many studies dealt with the development of different inelastic
Chikh Benazouz +3 more
doaj +1 more source
A simplified method for elastic-plastic-creep structural analysis [PDF]
A simplified inelastic analysis computer program (ANSYPM) was developed for predicting the stress-strain history at the critical location of a thermomechanically cycled structure from an elastic solution.
Kaufman, A.
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Condensed-tangent-stiffness-proportional viscous damping model for nonlinear time history analysis
, 2022 This work explains the development of a viscous damping model using the condensed tangent stiffness of the structure. It eliminates the spurious damping forces and avoids the high levels of damping presented by the condensed damping model defined with the initial properties.
Baena Urrea, Jose +2 more
openaire +1 more source
Local strain redistribution corrections for a simplified inelastic analysis procedure based on an elastic finite-element analysis [PDF]
Strain redistribution corrections were developed for a simplified inelastic analysis procedure to economically calculate material cyclic response at the critical location of a structure for life prediction proposes. The method was based on the assumption
Hwang, S. Y., Kaufman, A.
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Biaxial experiments supporting the development of constitutive theories for advanced high-temperature materials [PDF]
Complex states of stress and strain are introduced into components during service in engineering applications. It follows that analysis of such components requires material descriptions, or constitutive theories, which reflect the tensorial nature of ...
Ellis, J. R.
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Linear Stochastic Models of Nonlinear Dynamical Systems
, 1998 We investigate in this work the validity of linear stochastic models for nonlinear dynamical systems. We exploit as our basic tool a previously proposed Rayleigh-Ritz approximation for the effective action of nonlinear dynamical systems started from ...
B. A. Finlayson +17 more
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On local total strain redistribution using a simplified cyclic inelastic analysis based on an elastic solution [PDF]
Strain redistribution corrections were developed for a simplified inelastic analysis procedure to economically calculate material cyclic response at the critical location of a structure for life prediction purposes. The method was based on the assumption
Hwang, S. Y., Kaufman, A.
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Motion Planning of Uncertain Ordinary Differential Equation Systems [PDF]
, 2011 This work presents a novel motion planning framework, rooted in nonlinear programming theory, that treats uncertain fully and under-actuated dynamical systems described by ordinary differential equations.
Hays, Joe +3 more
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