Modellierung und Simulation eines Verbunds von Sandwichplatten zur Entwicklung einer mechanischen Verbindungstechnik
type: CreativeWork
description: The use of sandwich materials can lead to economical advantages in many applications by means of weight reduction. In spite of its large demand, its distribution in the field of mechanical engineering is constrained due to unsolved problems in the connection technology and uncertainties in the mechanics of such structures. Hence, in this filed, there exists a demand for the support of design engineers in designing of sandwich structures. Today, the Finite-element-method (FEM) for the simulation of the mechanical behaviours of complex structures is well established at the CAD-workstation; however the particularities of composite materials require advanced modelling- and analysis strategies. This work shall give the design engineer hints, with which a suitable FEM-system can be chosen for appropriate modelling of the loading cases and for evaluating the calculated results. To achieve this, simulations were carried out with different FEM-systems, whose results are validated by experiments. In the framework of this thesis, only plate materials with steel face and a PUR foam core that is very common in the mechanical engineering applications are considered. The simulated loading case is the four-point-bending-test according to DIN 53293, which is established as a test procedure and creates a practice relevant stress condition. After describing the possible approaches for FE-Modelling of the loading case, results of the simulation of a 3D-CAD/FEM-Integration with the FEM-Systems ANSYS, ABAQUS and ALGOR and their corresponding working steps are presented. Here the sandwich plate was created either completely through volume elements or through volume elements and shell/plate elements. In the experimental part of the work, the simulated loading case was experimentally repeated on the servo-hydraulic test machine as test series, whereby the linear elastic behaviour and the different failure of sandwich plate were investigated. The results obtained with aid of the FEM were com…
abstract: The use of sandwich materials can lead to economical advantages in many applications by means of weight reduction. In spite of its large demand, its distribution in the field of mechanical engineering is constrained due to unsolved problems in the connection technology and uncertainties in the mechanics of such structures. Hence, in this filed, there exists a demand for the support of design engineers in designing of sandwich structures. Today, the Finite-element-method (FEM) for the simulation of the mechanical behaviours of complex structures is well established at the CAD-workstation; however the particularities of composite materials require advanced modelling- and analysis strategies. This work shall give the design engineer hints, with which a suitable FEM-system can be chosen for appropriate modelling of the loading cases and for evaluating the calculated results. To achieve this, simulations were carried out with different FEM-systems, whose results are validated by experiments. In the framework of this thesis, only plate materials with steel face and a PUR foam core that is very common in the mechanical engineering applications are considered. The simulated loading case is the four-point-bending-test according to DIN 53293, which is established as a test procedure and creates a practice relevant stress condition. After describing the possible approaches for FE-Modelling of the loading case, results of the simulation of a 3D-CAD/FEM-Integration with the FEM-Systems ANSYS, ABAQUS and ALGOR and their corresponding working steps are presented. Here the sandwich plate was created either completely through volume elements or through volume elements and shell/plate elements. In the experimental part of the work, the simulated loading case was experimentally repeated on the servo-hydraulic test machine as test series, whereby the linear elastic behaviour and the different failure of sandwich plate were investigated. The results obtained with aid of the FEM were com…
author: Torsakul, Sirichai
language: ger
keywords: info:eu-repo/classification/ddc/620, Sandwich-Verbindungen, Finite-Elemente-Methode, Computersimulation, Modellierung, Werkstoffprüfung, Ingenieurwissenschaften, Sandwichmaterial, Verbindungstechnik, Finite-Element-Methode, Simulation, ANSYS, ABAQUS, ALGOR, Vier-Punkt-Biegung, Sandwich material, Joining Technology, Finite element method, Modelling, Four point bending
date published: 2007
date modified: 2026-07-30T19:43:10Z
provider: RWTH Aachen University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Lehrstuhl u. Inst. für Allg. Konstruktionstechnik des Maschinenbaus