Advanced material model for numerical simulations of fine blanking

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F19%3AN0000118" target="_blank" >RIV/26316919:_____/19:N0000118 - isvavai.cz</a>

Result on the web

<a href="https://www.google.com/search?q=Advanced+material+model+for+numerical+simulations+of+fine+blanking&oq=Advanced+material+model+for+numerical+simulations+of+fine+blanking&aqs=edge.0.69i59.1278j0j1&sourceid=chrome&ie=UTF-8" target="_blank" >https://www.google.com/search?q=Advanced+material+model+for+numerical+simulations+of+fine+blanking&oq=Advanced+material+model+for+numerical+simulations+of+fine+blanking&aqs=edge.0.69i59.1278j0j1&sourceid=chrome&ie=UTF-8</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Advanced material model for numerical simulations of fine blanking

Original language description

Advanced manufacturing processes, including fine blanking, are widely used in the mass production of sheet metal parts. In the present article, numerical modelling and a real-world test of fine blanking are discussed with a focus on material characterization. The material was 1.4301 stainless steel and its model was constructed using measured mechanical properties. Tensile tests, plane strain tests and shear tests were carried out to determine steel characteristics under various stress states. All the tests were performed at room temperature and under quasi-static conditions. Local strains were determined using the ARAMIS digital image correlation (DIC) system from GOM company. After testing, metallographic analysis of the specimens was conducted for characterizing their fracture surfaces. By correlating the data from the DIC system, results of numerical modelling and metallographic examination, the instant of failure initiation in a specimen can be determined. When a ductile failure model is calibrated against tests under various stress states and used for modelling of blanking, it improves the description and the accuracy of the computational model of the process. The choice of the failure model has a substantial impact on the calculated magnitude of fine blanking force. To validate the material models chosen, an additional fine blanking test and metallographic examination were performed in order to assess the creation and shape of the sheared edge. A material model developed and validated by this procedure becomes useful in the design and optimization of real-world blanking processes.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/LO1412" target="_blank" >LO1412: Development of the West Bohemian Centre of Materials and Metallurgy</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

57th International Scientific Conference on Experimental Stress Analysis (EAN 2019)

ISBN

978-802145766-9

ISSN

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e-ISSN

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Number of pages

9

Pages from-to

151-159

Publisher name

Czech Society for Mechanics

Place of publication

Praha

Event location

Luhačovice

Event date

Jun 3, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000568113800025