Author
Francis Tin-Loi
Other affiliations: University of Trieste
Bio: Francis Tin-Loi is an academic researcher from University of New South Wales. The author has contributed to research in topics: Finite element method & Limit analysis. The author has an hindex of 30, co-authored 152 publications receiving 3158 citations. Previous affiliations of Francis Tin-Loi include University of Trieste.
Papers published on a yearly basis
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232 citations
TL;DR: An automatic crack propagation modelling technique using polygon elements is presented in this article, where a simple algorithm to generate a polygon mesh from a Delaunay triangulated mesh is implemented The polygon element formulation is constructed from the scaled boundary finite element method (SBFEM), treating each polygon as a SBFEM subdomain and is very efficient in modelling singular stress fields in the vicinity of cracks.
Abstract: SUMMARY
An automatic crack propagation modelling technique using polygon elements is presented A simple algorithm to generate a polygon mesh from a Delaunay triangulated mesh is implemented The polygon element formulation is constructed from the scaled boundary finite element method (SBFEM), treating each polygon as a SBFEM subdomain and is very efficient in modelling singular stress fields in the vicinity of cracks Stress intensity factors are computed directly from their definitions without any nodal enrichment functions An automatic remeshing algorithm capable of handling any n-sided polygon is developed to accommodate crack propagation The algorithm is simple yet flexible because remeshing involves minimal changes to the global mesh and is limited to only polygons on the crack paths The efficiency of the polygon SBFEM in computing accurate stress intensity factors is first demonstrated for a problem with a stationary crack Four crack propagation benchmarks are then modelled to validate the developed technique and demonstrate its salient features The predicted crack paths show good agreement with experimental observations and numerical simulations reported in the literature Copyright © 2012 John Wiley & Sons, Ltd
191 citations
TL;DR: In this paper, a hybrid probabilistic and interval method for engineering problems described by a mixture of random and interval variables is presented, where the uncertainty of a random interval variable is represented by probabilistically as well as interval information.
149 citations
TL;DR: In this article, a mixed perturbation Monte-Carlo method for static and reliability analysis of structural systems with a mixture of random and interval parameters/loadings is presented, and the lower and upper bounds of probability of failure and reliability of structural elements and systems are investigated based on the first-order secondmoment reliability method and interval approach.
134 citations
TL;DR: In this article, the generalized stress intensity factors are evaluated directly from the scaled boundary finite-element solution for the singular stress field by following standard stress recovery procedures in the finite element method.
104 citations
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31 Oct 2001
TL;DR: The American Society for Testing and Materials (ASTM) as mentioned in this paper is an independent organization devoted to the development of standards for testing and materials, and is a member of IEEE 802.11.
Abstract: The American Society for Testing and Materials (ASTM) is an independent organization devoted to the development of standards.
3,792 citations
TL;DR: The goal of this documentation is to summarize the essential applications of the nonlinear complementarity problem known to date, to provide a basis for the continued research on the non linear complementarityproblem, and to supply a broad collection of realistic complementarity problems for use in algorithmic experimentation and other studies.
Abstract: This paper gives an extensive documentation of applications of finite-dimensional nonlinear complementarity problems in engineering and equilibrium modeling. For most applications, we describe the problem briefly, state the defining equations of the model, and give functional expressions for the complementarity formulations. The goal of this documentation is threefold: (i) to summarize the essential applications of the nonlinear complementarity problem known to date, (ii) to provide a basis for the continued research on the nonlinear complementarity problem, and (iii) to supply a broad collection of realistic complementarity problems for use in algorithmic experimentation and other studies.
1,016 citations
TL;DR: In this paper, a class of constitutive updates for general viscoplastic solids including such aspects of material behavior as finite elastic and plastic deformations, non-Newtonian viscosity, rate-sensitivity and arbitrary flow and hardening rules are presented.
513 citations
TL;DR: A review of methods applicable to the study of masonry historical construction, encompassing both classical and advanced ones, is presented in this paper, where the main available strategies, including limit analysis, simplified methods, FEM macro- or micro-modeling and discrete element methods (DEM), are considered with regard to their realism, computer efficiency, data availability and real applicability to large structures.
Abstract: A review of methods applicable to the study of masonry historical construction, encompassing both classical and advanced ones, is presented. Firstly, the paper offers a discussion on the main challenges posed by historical structures and the desirable conditions that approaches oriented to the modeling and analysis of this type of structures should accomplish. Secondly, the main available methods which are actually used for study masonry historical structures are referred to and discussed. The main available strategies, including limit analysis, simplified methods, FEM macro- or micro-modeling and discrete element methods (DEM) are considered with regard to their realism, computer efficiency, data availability and real applicability to large structures. A set of final considerations are offered on the real possibility of carrying out realistic analysis of complex historic masonry structures. In spite of the modern developments, the study of historical buildings is still facing significant difficulties linked to computational effort, possibility of input data acquisition and limited realism of methods.
504 citations
TL;DR: In this article, the possibilities of analysis of historic masonry structures are addressed and a set of guidelines is proposed for the analysis of masonry constructions and their experimental behavior is discussed.
Abstract: Is modelling and analysis of historical masonry structures necessary? Is the experimental behaviour of historical masonry constructions known? The answers seem to be ‘yes’, and substantial developments have occurred in recent decades in the challenging issues of conservation and restoration. A key issue is what type of analysis should be used. It seems that all methods are of interest, depending on the actual constraints of the engineering problem. In this paper, the possibilities of analysis of historic structures are addressed and a set of guidelines is proposed.
487 citations