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Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation
The application of instrumented indentation to assess material properties like Young’s modulus and microhardness has become a standard method. In recent developments, indentation experiments and simulations have been combined to inverse methods, from which further material parameters such as yield s...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7412220/ https://www.ncbi.nlm.nih.gov/pubmed/32668811 http://dx.doi.org/10.3390/ma13143126 |
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author | Sajjad, Hafiz Muhammad ul Hassan, Hamad Kuntz, Matthias Schäfer, Benjamin J. Sonnweber-Ribic, Petra Hartmaier, Alexander |
author_facet | Sajjad, Hafiz Muhammad ul Hassan, Hamad Kuntz, Matthias Schäfer, Benjamin J. Sonnweber-Ribic, Petra Hartmaier, Alexander |
author_sort | Sajjad, Hafiz Muhammad |
collection | PubMed |
description | The application of instrumented indentation to assess material properties like Young’s modulus and microhardness has become a standard method. In recent developments, indentation experiments and simulations have been combined to inverse methods, from which further material parameters such as yield strength, work hardening rate, and tensile strength can be determined. In this work, an inverse method is introduced by which material parameters for cyclic plasticity, i.e., kinematic hardening parameters, can be determined. To accomplish this, cyclic Vickers indentation experiments are combined with finite element simulations of the indentation with unknown material properties, which are then determined by inverse analysis. To validate the proposed method, these parameters are subsequently applied to predict the uniaxial stress–strain response of a material with success. The method has been validated successfully for a quenched and tempered martensitic steel and for technically pure copper, where an excellent agreement between measured and predicted cyclic stress–strain curves has been achieved. Hence, the proposed inverse method based on cyclic nanoindentation, as a quasi-nondestructive method, could complement or even substitute the resource-intensive conventional fatigue testing in the future for some applications. |
format | Online Article Text |
id | pubmed-7412220 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-74122202020-08-17 Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation Sajjad, Hafiz Muhammad ul Hassan, Hamad Kuntz, Matthias Schäfer, Benjamin J. Sonnweber-Ribic, Petra Hartmaier, Alexander Materials (Basel) Article The application of instrumented indentation to assess material properties like Young’s modulus and microhardness has become a standard method. In recent developments, indentation experiments and simulations have been combined to inverse methods, from which further material parameters such as yield strength, work hardening rate, and tensile strength can be determined. In this work, an inverse method is introduced by which material parameters for cyclic plasticity, i.e., kinematic hardening parameters, can be determined. To accomplish this, cyclic Vickers indentation experiments are combined with finite element simulations of the indentation with unknown material properties, which are then determined by inverse analysis. To validate the proposed method, these parameters are subsequently applied to predict the uniaxial stress–strain response of a material with success. The method has been validated successfully for a quenched and tempered martensitic steel and for technically pure copper, where an excellent agreement between measured and predicted cyclic stress–strain curves has been achieved. Hence, the proposed inverse method based on cyclic nanoindentation, as a quasi-nondestructive method, could complement or even substitute the resource-intensive conventional fatigue testing in the future for some applications. MDPI 2020-07-13 /pmc/articles/PMC7412220/ /pubmed/32668811 http://dx.doi.org/10.3390/ma13143126 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Sajjad, Hafiz Muhammad ul Hassan, Hamad Kuntz, Matthias Schäfer, Benjamin J. Sonnweber-Ribic, Petra Hartmaier, Alexander Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation |
title | Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation |
title_full | Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation |
title_fullStr | Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation |
title_full_unstemmed | Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation |
title_short | Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation |
title_sort | inverse method to determine fatigue properties of materials by combining cyclic indentation and numerical simulation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7412220/ https://www.ncbi.nlm.nih.gov/pubmed/32668811 http://dx.doi.org/10.3390/ma13143126 |
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