α'-martensite formation and a new method for the detection of damage in sheet metal components

authored by: B. A. Behrens, K. Voges-Schwieger, K. Weilandt, J. Schrödter, J. Jocker
Abstract: At the IFUM, a novel material inherent load sensor based on martensite transformation is under development. In metastable austenitic steels, mechanical load induces a partial transformation of austenite to martensite. The martensite content correlates with the magnitude of the load applied. The threshold of stress that initiates the phase transformation can be decreased locally by means of prior forming (e.g. stamping). This enables the detection of load below the yield stress by means of martensite content. A numerical material model to consider the load induced formation of martensite in the simulation is presented in this paper. Afterwards, an approach to detect the effective direction of load applied to the sensor is discussed.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
Type: Conference contribution
Publication date: 01.01.2011
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Metals and Alloys, Surfaces, Coatings and Films
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{48bcab6e92d24941a60ca39106eab7df,
title = "α'-martensite formation and a new method for the detection of damage in sheet metal components",
abstract = "At the IFUM, a novel material inherent load sensor based on martensite transformation is under development. In metastable austenitic steels, mechanical load induces a partial transformation of austenite to martensite. The martensite content correlates with the magnitude of the load applied. The threshold of stress that initiates the phase transformation can be decreased locally by means of prior forming (e.g. stamping). This enables the detection of load below the yield stress by means of martensite content. A numerical material model to consider the load induced formation of martensite in the simulation is presented in this paper. Afterwards, an approach to detect the effective direction of load applied to the sensor is discussed.",
keywords = "FEM-simulation, Martensite, Metal forming, Phase transformation, Sensor, Stamping",
author = "Behrens, {B. A.} and K. Voges-Schwieger and K. Weilandt and J. Schr{\"o}dter and J. Jocker",
year = "2011",
month = jan,
day = "1",
language = "English",
series = "7th European Stainless Steel Conference: Science and Market, Proceedings",
publisher = "Associazione Italiana di Metallurgia",
booktitle = "7th European Stainless Steel Conference",
address = "Italy",
note = "7th European Stainless Steel Conference: Science and Market ; Conference date: 21-09-2011 Through 23-09-2011",
}