A new method for identifying elastic parameters of isotropic materials based on square specimens.

Longxin Zhang, Wenbin Zhang, Han Xu, Yaxing Ma

Abstract read

In one paragraph

Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

Identification of frame geometry and boundary conditions from free-vibration modal signatures.Scientific reports · 2026
Article

4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Longxin ZhangFaculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, 650500, China.

Wenbin ZhangCollege of Mechanical and Electrical Engineering, Kunming University, Kunming, 650214, China. 190322507@qq.com.

Han XuFaculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, 650500, China.

Yaxing MaFaculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, 650500, China.

Funding

Support Program for Xingdian Talents YNWR-QNBJ-2018-349

6 · The paper itself

Abstract

This paper proposes a new impulse excitation technique using a square plate. First, the functional relationship between the modal frequency of the specimen and the geometrical dimensions and mechanical parameters was established by using the finite element method. Then, the continuous functional relationship derived by a homotopy method allowed the frequency ratios to be related to the thickness-to-length ratio and Poisson's ratio. By measuring the frequency ratios and thickness-to-length ratio, Poisson's ratio could be calculated using this functional relationship. When the density and Poisson's ratio were known, Young's modulus could be identified inversely in conjunction with the finite element analysis. Finally, a comparison test between this method and the traditional impulse excitation technique was designed and implemented, and the results showed that this method has advantages in both testing efficiency and accuracy. The study provides a new idea for system identification, which has important application value and promotion significance.

Indexed as

Homotopy methodImpulse excitation techniquePoisson’s ratioYoung’s modulus

Identifiers

PMID39251673

DOI10.1038/s41598-024-71111-0

PMCPMC11385557

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Textmetadata

LicenceCC BY-NC-ND

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.