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Original Article
He Xue
Xi'an University of Science and Technology
Corresponding Author
ORCiD: https://orcid.org/0000-0003-0315-9386
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The welding and other hot or cold processing region behavior in important structures is the key characteristics for the structural integrity assessment, it is necessary to accurately derive the material mechanical properties in the failure driving force (such as stress and strain) analysis in the local area. The hot or cold processing would induce the change and the inhomogeneous of the material mechanical properties in the local processing region of the structure, and it is difficult to obtain the precise mechanical properties in these regions by the traditional material tensile test. To accurately obtain actual material mechanical properties in the local region of structures, a micro-indentation test system has been established, which incorporated by a CMT6103 Material Test Device, an indenter displacement sensor and a group of special micro-indenter assemblies are established, and a numerical testing inversion analysis method by using ABAQUS software is also proposed in this paper. Based on above test system and analysis platform, an approach to obtain material mechanical properties in local region of structure is proposed and established. The verification experiment and analysis is performed by using a group of various changed mechanical property of 316L austenitic stainless steel through different cold-work hardening. The investigated results indicate the material mechanical properties and the micro-indentation morphological change have evidently relevance, and the material mechanical parameters, such as the yield stress σ y , the strain hardening exponent n and others could be conveniently and effectively obtained by the proposed approach in this paper.
Keywords
Structural integrity assessment, Micro-indentation test, Numerical testing inversion analysis, Local material mechanical property
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CURRENT STATUS: Under Review
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Posted 06 Jan, 2021
No community comments so far
Review #2 received
Received 05 Feb, 2021
Editorial decision: Major revision
On 05 Feb, 2021
Review #1 received
Received 28 Jan, 2021
Reviewer #2 agreed
On 06 Jan, 2021
Reviewers invited
Invitations sent on 05 Jan, 2021
Reviewer #1 agreed
On 05 Jan, 2021
First submitted
On 28 Dec, 2020
Editor assigned
On 28 Dec, 2020
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On 28 Dec, 2020
Editor invited
On 28 Dec, 2020
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Subject Areas
Mechanical Engineering
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This preprint is under consideration at Chinese Journal of Mechanical Engineering. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Original Article
He Xue
Xi'an University of Science and Technology
Corresponding Author
ORCiD: https://orcid.org/0000-0003-0315-9386
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 06 Jan, 2021
No community comments so far
Review #2 received
Received 05 Feb, 2021
Editorial decision: Major revision
On 05 Feb, 2021
Review #1 received
Received 28 Jan, 2021
Reviewer #2 agreed
On 06 Jan, 2021
Reviewers invited
Invitations sent on 05 Jan, 2021
Reviewer #1 agreed
On 05 Jan, 2021
First submitted
On 28 Dec, 2020
Editor assigned
On 28 Dec, 2020
Submission checks complete
On 28 Dec, 2020
Editor invited
On 28 Dec, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Mechanical Engineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The welding and other hot or cold processing region behavior in important structures is the key characteristics for the structural integrity assessment, it is necessary to accurately derive the material mechanical properties in the failure driving force (such as stress and strain) analysis in the local area. The hot or cold processing would induce the change and the inhomogeneous of the material mechanical properties in the local processing region of the structure, and it is difficult to obtain the precise mechanical properties in these regions by the traditional material tensile test. To accurately obtain actual material mechanical properties in the local region of structures, a micro-indentation test system has been established, which incorporated by a CMT6103 Material Test Device, an indenter displacement sensor and a group of special micro-indenter assemblies are established, and a numerical testing inversion analysis method by using ABAQUS software is also proposed in this paper. Based on above test system and analysis platform, an approach to obtain material mechanical properties in local region of structure is proposed and established. The verification experiment and analysis is performed by using a group of various changed mechanical property of 316L austenitic stainless steel through different cold-work hardening. The investigated results indicate the material mechanical properties and the micro-indentation morphological change have evidently relevance, and the material mechanical parameters, such as the yield stress σ y , the strain hardening exponent n and others could be conveniently and effectively obtained by the proposed approach in this paper.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
The full text of this article is available to read as a PDF.
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