FraMCoS-2 Photos
Photographs from FraMCoS-2, Zurich, Switzerland.
Photographs from FraMCoS-2, Zurich, Switzerland.
Preface to the FraMCoS-2 proceedings by F.H. Wittmann. FRAMCOS‑2 Conference Programme PREFACE Thirty ye訂sago, fracture mechanics was considered to be a highly interesting academic subject without any relevance for designthe , construction, and maintenance of concrete 旬res.Few and isolated groups worked in field this and they met on the occasion of struc Il established intemational conferences on企acturemechanics such as ICF. In these big we conferences , usually one or two sessions were devoted to concrete. , engineers who at that time had no idea of what丘acturemechanics really Suddenly implies got fas cInated by this approach and the view was spread that civil engineering would experience a real revolution with the introduction of fracture mechanics into 加 ct町alanalysis. These expectations certainly could not and will never be satisfied. But s in this situation , RILEM took a lead and set up a first technical committee on frac印re ・FMC).The aim originally was to present a comprehensive mechanics (RILEM TC 50 documentation on the state‑of‑the‑art (Fracture Mechanics of Concrete , ed. F.H. Wittmann , Elsevier (1983)) and to prep訂erecommendations on a generally accepted test 町ameters.No doubt, practically everybody method to determine fracture mechanics p expected a standardized method on how to determine KIC of concrete when this 立1itteewas set up. com , held in Delft, It was during the first meeting of the new RILEM technical committee The Nether1ands, when Arne Hi1lerborg asked to present his ideas on frac旬remechanics in 15 minutes.
Conference announcement for FraMCoS-2, Zurich, Switzerland. You紅einvited to submit a one page abs住民tof a contribution IAFraMCoS 阻iningnew and relevant results before December 15, 1994. con Intemational Ass∞iation for Fracture Mechanics You will be informed on 出eacceptance of your pap,er not later of Concrete and Concrete Structures Founded in 1991, Incorporated in the State of Illinois, USA 出anFebruary 15, 1995. At the same time, the authors whose paper is accepted will receive detailed instructions on the p 詑P訂ationof camera‑ready manuscripts. All出epapers have to 紅’Ch31, 1995. be submitted before M First Announcement and Call for Papers Please send all correspondence to: Prof. Folker H. Wittmann FRAMCOS・2 FRAMCOS‑2 Laboratory for Building Materials Swiss Federal Institute of Technology, ETH Second Intemational Conference αf ・8093Zurich, Switzerland on Fracture Mechanics Tel: +41 1 633‑2709 or 2712 Fax: +411 633 1087 of Concrete and Concrete Structures July 25・28,1995 Important deadlines: Dec. 15, 1994: Submission of abs位acts Information on acceptance and on prep訂ation , 1995: Feb. 15 of camera‑ready manuscript Sub 訂.31,1995: 凶ssionof camera‑ready manuscripts M Swiss Federal Institute of Technology, ETH Laboratory for Building Materials Zurich , Switzerland .. 圃圃園田…Eidgenossische Ecole polytechnique ledereJle de ZUflch ̲̲ ̲ ̲ Technische Hochschule
Recent developments in numerical analysis of cracking are briefly reviewed and summarized. 1. Recent Developments in the Analysis of Cracking the recent past a number of exciting developments have changed the field of failure analysis by reconciling in part the fundamental differences between plasticity and fracture. The formation of discon- tinuities, which has been addressed
Anchoring elements such as headed-, expansion-, grouted or under- cut anchors are often used for the transfer of loads into concrete members. In order to better understand the failure mechanism, a large number of experiments has been carried out the past. In the present paper the influence of geometrical and material para- meters on the
pullout forces. This has been the subject of considerable experimental and numerical research. Design recommendations are normally based on empirical equations or on upper bound plasticity solutions, which usually overestimate pullout forces, leading to conservative design. Experiments on Bond Behavior in Curved Bars Bars are often bent through angles of up to 90° to meet
fastening technology safety relevant domain substrates is mainly covered by anchors. the …,…, ………… f”,, anchor a predrilled hole and process can be “”‘””” … …, …………… …, …… forming a numerical analysis based on finite element ……….. , ………. v …. . element program utilizing the crack concept has been at AG for the
Fracture mechanics and Damage mechanics are two corelated theories. In some instances, e.g. for large specimens, crack propagation may be viewed equivalently as a sudden localisation of damage. Relationship between the two theories have been shown in this paper. Two major uses of the proposed equivalence between fracture and damage are shown and applications confirm
The discrete crack model is applied to both linear and non-linear fracture mechanics analyses of anchor bolt pull-out experiments. automated mesh generation is used for remeshing at each step of crack propagation.
The description of cracking and failure within element ana- lysis of quasi-brittle structures and materials such as concrete has led to two fundamentally different approaches: the discrete and the smeared crack methodology. Traditionally, they represent two dis- tinct viewpoints: The discrete approach is based on the principles of fracture mechanics or fictitious crack concepts which