Author
Andrea Dall'Asta
Other affiliations: University of California, San Diego, Louisiana State University, Marche Polytechnic University
Bio: Andrea Dall'Asta is an academic researcher from University of Camerino. The author has contributed to research in topics: Medicine & Obstetrics. The author has an hindex of 24, co-authored 129 publications receiving 1803 citations. Previous affiliations of Andrea Dall'Asta include University of California, San Diego & Louisiana State University.
Topics: Medicine, Obstetrics, Seismic analysis, Beam (structure), Damper
Papers published on a yearly basis
Papers
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01 Dec 2000
TL;DR: In this paper, the authors illustrate some aspects related to the convergence of the method by comparing solutions deriving from finite elements with 8, 10 and 16 DOF elements, and some pathologies of the 8DOF element are posed in evidence.
Abstract: The non-linear analysis of composite steel–concrete beams by the finite elements method permits obtaining useful information on collapse modalities but the convergence of the solution must be carefully controlled. Using the displacement formulation of the finite elements technique, the authors illustrate some aspects related to the convergence of the method by comparing solutions deriving from finite elements with 8, 10 and 16DOF. Some pathologies of the 8DOF element are posed in evidence.
118 citations
TL;DR: In this paper, a nonlinear viscoelastic damage model was proposed to describe the behavior of high damping rubber under cyclic loads, and experimental tests were performed to obtain more accurate information about the behaviour of the material in cyclic shear paths with different strain rate and strain amplitude.
106 citations
TL;DR: In this paper, an elastoplastic model for steel buckling-restrained braces (BRBs) is presented, following a consistent approach based on a rheological scheme that leads to a quite simple constitutive law involving only one internal variable.
105 citations
TL;DR: In this paper, a strategy to avoid locking by means of a calibrated choice of the displacement shape functions is proposed and a comparison between different displacement-based elements, in terms of local error, global error and convergence rate, is presented.
73 citations
TL;DR: In this article, a three-field mixed finite element is proposed for the non-linear analysis of composite beam with deformable shear connection, considering the nonlinear behaviour of materials and shear connectors.
70 citations
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01 Jan 2006
TL;DR: Probability distributions of linear models for regression and classification are given in this article, along with a discussion of combining models and combining models in the context of machine learning and classification.
Abstract: Probability Distributions.- Linear Models for Regression.- Linear Models for Classification.- Neural Networks.- Kernel Methods.- Sparse Kernel Machines.- Graphical Models.- Mixture Models and EM.- Approximate Inference.- Sampling Methods.- Continuous Latent Variables.- Sequential Data.- Combining Models.
10,141 citations
01 Jan 1990
TL;DR: The ASCE/SEI 7-05 standard as discussed by the authors provides a complete update and reorganization of the wind load provisions, expanding them from one chapter into six, and includes new ultimate event wind maps with corresponding reductions in load factors.
Abstract: Minimum Design Loads for Buildings and Other Structures provides requirements for general structural design and includes means for determining dead, live, soil, flood, wind, snow, rain, atmospheric ice, and earthquake loads, as well as their combinations, which are suitable for inclusion in building codes and other documents. This Standard, a revision of ASCE/SEI 7-05, offers a complete update and reorganization of the wind load provisions, expanding them from one chapter into six. The Standard contains new ultimate event wind maps with corresponding reductions in load factors, so that the loads are not affected, and updates the seismic loads with new risk-targeted seismic maps. The snow, live, and atmospheric icing provisions are updated as well. In addition, the Standard includes a detailed Commentary with explanatory and supplementary information designed to assist building code committees and regulatory authorities. Standard ASCE/SEI 7 is an integral part of building codes in the United States. Many of the load provisions are substantially adopted by reference in the International Building Code and the NFPA 5000 Building Construction and Safety Code. Structural engineers, architects, and those engaged in preparing and administering local building codes will find this Standard an essential reference in their practice. Note: New orders are fulfilled from the second printing, which incorporates the errata to the first printing.
974 citations
TL;DR: In this paper, the authors reviewed the literature dedicated to this topic over the past six decades and presented the experimental evidences, which characterize the Mullins softening, observed in filled rubbers and crystallizing pure gum.
905 citations
Book•
12 May 1997
TL;DR: In this paper, the basic concepts of Nonlinear Quasi-Static Problems at Regular States are discussed. And the concepts of Shape Sensitivity and Post-Buckling are discussed as well.
Abstract: PRELIMINARIES. Motivation: Sensitivity and Large-Scale Systems. Nonlinear Solid Mechanics: Continuous and Semi-Discretized Formulation. Concepts of Sensitivity Analysis for Linear Systems.THE SENSITIVITY OF NONLINEAR SYSTEMS. The Basic Concepts of Nonlinear Quasi-Static Problems at Regular States. Inelastic Systems. Shape Sensitivity. Buckling and Post-Buckling. Nonlinear Dynamics. Metal Forming Using the Flow Approach. Nonlinear Thermal Systems. Appendices. References. Index. Glossary of Symbols.
242 citations
01 Jan 1985
TL;DR: In this article, the results of approximately 4000 published and unpublished tensile tests on deformed reinforcing bars are studied to obtain statistical relationships for various mechanical properties, including the mean and coefficients of variation of the mill test yield strength.
Abstract: The results of approximately 4000 published and unpublished tensile tests on deformed reinforcing bars are studied to obtain statistical relationships for various mechanical properties. The sample included No. 3 through No. 18, Grades 40 and 60, bars. The means and coefficients of variation of the mill test yield strengths were found to be 48.8 ksi (337 MN/sq m) and 10.7% for Grade 40 and 71 ksi (MN/sq m) and 9.3% for Grade 60 bars. Beta distributions were used to represent both of these sets of data. The static yield strength was found to be 3.5 ksi (24 MN/sq m) lower on the average than the mill test yield strength in both cases, with a coefficient of variation of 13.4%. The trend to lower yield strengths with increased bar sizes observed early in the 1970's was not present in more resent test data, apparently due to more stringent production control in recent years. /Authors/
206 citations