| Title: |
Finite element based optimization of a novel metal-composite-joint |
| Authors: |
Ucsnik, Stephan A.; Gradinger, Rudolf; Noster, Ulf; Pahr, Dieter H. |
| Publication Year: |
2008 |
| Description: |
Aerospace and automotive industries employ three main techniques to set up joints between metal and fibre reinforced plastics parts (FRP); adhesive bonding, mechanical fastening with rives/bolts and a hybrid combination. A new joint technique has been developed to combine the two advantageous mechanisms form-closure and adhesion in a fibre-friendly way. Prior is established through metal structures (pins) which are perpendicularly welded onto metal surfaces with an arc-welding-process. They intrude into the FRP during lay-up and therefore set up a first connection. The composite-matrix is responsible for latter adhesive bonding and final form closure. Finite-element-analyses of cylindrically shaped joints are carried out to get detailed knowledge of the influence of parameters like pin-number, pin-position, pin-height, pin-form sleeve-geometry, and stiffness behaviour. Long calculation times of 3D-models lead to the introduction of a corresponding 2D-axisymmetric-model which is used to run parameter-studies within a reasonable time. For this novel technique the combination of fibre-friendly form closure and adhesive bonding of interface plays a major role. A well selected amount of vertical reinforcements, their placement and geometrical dimensions will lead to a stiffer joint. Goal is to minimize fibre-deletion and overlap length to improve load-transfer and joint-strength, to reduce weight in high-strength-applications as well as the avoidance of safety rivets. |
| Document Type: |
conference object |
| Language: |
English |
| Availability: |
https://opus4.kobv.de/opus4-oth-regensburg/frontdoor/index/index/docId/5277 |
| Rights: |
http://www.gesetze-im-internet.de/urhg/__53.html ; info:eu-repo/semantics/closedAccess |
| Accession Number: |
edsbas.14C64DAF |
| Database: |
BASE |