TY - JOUR A1 - Borrmann, André A1 - Schorr, Markus A1 - Obergrießer, Mathias A1 - Ji, Yang A1 - Wu, I-Chen A1 - Günthner, Willibald A. A1 - Euringer, Thomas A1 - Rank, Ernst ED - Caldas, Carlos H. ED - O'Brien, William J. T1 - Using product data management systems for civil engineering projects - Potentials and obstacles JF - Computing in civil engineering : proceedings of the 2009 ASCE International Workshop on Computing in Civil Engineering ; June 24 - 27, 2009, Austin, Texas Y1 - 2009 VL - 346 SP - 359 EP - 369 PB - ASCE ER - TY - JOUR A1 - Ledentsov, Dmitry A1 - Düster, Alexander A1 - Volk, Wolfram A1 - Wagner, Marcus A1 - Heinle, Ingo A1 - Rank, Ernst T1 - Model adaptivity for industrial application of sheet metal forming simulation JF - Finite Elements in Analysis and Design N2 - finite element simulation of sheet metal forming, shell elements are widely used. The limits of applicability of the shell elements are sometimes disregarded, which leads to an error in predictions of important values such as springback geometry. The underlying kinematic assumptions of the shell elements do not hold where the thickness of In the metal sheet approaches the value of the radius of curvature. Complex three-dimensional material behavior effects cannot be represented precisely as the result of the simplified kinematics. Here we present a model adaptivity scheme based on a model error indicator. The model-adaptive technique presented in this paper aides to resolve only the critical areas of the structure with a three-dimensional discretization while keeping reasonable computational cost by utilizing shell elements for the rest of the structure. The model error indicator serves as a guide for subsequent automatic adaptive re-meshing of the work-piece followed by a model-adaptive finite element analysis. The accuracy of the approximation obtained by the model-adaptive technique coincides well with that of a more expensive solution obtained with solid elements only. KW - Finite elements KW - Model adaptivity KW - Coupled analysis KW - Model error KW - Sheet metal forming Y1 - 2010 U6 - https://doi.org/10.1016/j.finel.2010.02.006 VL - 46 IS - 7 SP - 585 EP - 600 ER - TY - CHAP A1 - Euringer, Thomas A1 - Obergrießer, Mathias A1 - Borrmann, André A1 - Rank, Ernst T1 - Integration of geotechnical design and analysis processes using a parametric and 3D-model based approach T2 - International Workshop on Computing in Civil Engineering, 19.-22.06.2011, Miami, Florida, USA N2 - The aim of this work is to improve the integration between the geotechnical and infrastructural designing, modeling and analyzing processes. Up to now these three planning stages are executed isolated and without the required data exchange between each other. This separation leads to time-consuming and expensive manual re-input of geometric and semantic data. Currently, roads are designed using the traditional approach which is based on various 2D drawings. The current design process focuses on the roadway itself, additional geotechnical conditions such as the slope angle of the dam or the position of a retaining wall are not considered. To solve these problems, a new parametric and 3D-model based approach has been developed in the research project ForBAU — The virtual construction site. This new approach is based on the traditional 2D infrastructure planning process, but includes a new parameterized 3D modeling concept. Different open data formats such as LandXML and GroundXML allow data integration with both, a parametric Computer Aided Design (CAD) system and a geotechnical engineering software. An automatic update function ensures data flow without loss of information. Usage of this new approach will accelerate the infrastructure design and provide a parametric 3D-model approach to close the gap between the geotechnical and the infrastructure planning process. This paper provides detailed information about this new integration concept and gives an overview on the various implementation steps. Y1 - 2011 U6 - https://doi.org/10.1061/41182(416)53 SP - 430 EP - 437 PB - American Society of Civil Engineers ER - TY - CHAP A1 - Euringer, Thomas A1 - Obergrießer, Mathias A1 - Ji, Yang A1 - Baumgärtel, T. A1 - Borrmann, André A1 - Rank, Ernst ED - Topping, B. H. V. ED - Costa Neves, L. F. ED - Baros, R. C. T1 - GroundXML: An addition of aligmnent and subsoil specific cross-sectional data to the LandXML scheme T2 - Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing, Funchal, Madeira, Portugal, 1-4 September 2009 Y1 - 2009 SN - 9781905088300 SN - 9781905088324 PB - Civil-Comp Press CY - Stirlingshire, UK ER - TY - JOUR A1 - Schorr, Markus A1 - Borrmann, André A1 - Obergrießer, Mathias A1 - Ji, Yang A1 - Günthner, Willibald A. A1 - Rank, Ernst T1 - Employing product data management systems in civil engineering projects: Functionality analysis and assessment JF - Journal of soft computing in civil engineering : SCCE N2 - Product Data Management (PDM) systems are well established in the manufacturing industry. Here, they form the standard solution for the central storage of all data relating to a product and the processes involved in its manufacture. Particularly the consistent management of CAD models, including sophisticated versioning techniques and access rights management as well as the integrated workflow management are attractive features for using PDM systems also for civil engineering projects. This paper investigates the technical concepts behind PDM systems and compares their suitability as a data management solution in civil engineering projects with that of Document Management Systems and Product Model Servers. Alongside a comparative study of the major PDM systems available on the market, we also present a case study involving a PDM system that has been employed for a concrete civil engineering project. Y1 - 2011 UR - https://publications.cms.bgu.tum.de/2011_Schorr_PDM.pdf VL - 25 IS - 6 SP - 430 EP - 441 PB - ASCE CY - New York, NY ER -