Aluminum Strain Measurement by Beam Propagation

Heredia, Alonso Saldaña; Aguilar, P.A. Márquez; Ocampo, Arturo Molina

doi:10.1007/978-3-319-28513-9_2

Emerging Challenges for Experimental Mechanics in Energy and Environmental Applications, Proceedings of the 5th International S

2016

DOI: 10.1007/978-3-319-28513-9_2

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Aluminum Strain Measurement by Beam Propagation

Alonso Saldaña Heredia

P.A. Márquez Aguilar

Arturo Molina Ocampo

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2020

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“…Accuracy and error of the four tests. With this developed technique, taking the focal length as a parameter for measuring the stress-strain relation of a material, we proved an 89% effectiveness following standardized compression tests using aluminum samples; we also obtained a K value for this material of 4.5, which stablishes the relation between the slopes of the real and the experimental graphs [26]. Summarizing these tests, steel and aluminum, we observed that the present methodology can measure the stress-strain relation of a ductile material with an average error of 11%.…”

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confidence: 77%

Digital Image Processing Applied to Optical Measurements

Saldaña-Heredia¹,

Aguilar²,

Lara³

et al. 2020

Digital Imaging

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Digital image processing is a useful tool that improves pictorial information for human interpretation and is mainly used for storage, transmission, and representation of different data. In this chapter, we want to introduce an optical technique which couples physical analysis with image processing for a measurement system. Optical methods were used to obtain the stress-strain relation by different invasive and noninvasive methods. This chapter talks about a novel noninvasive methodology to measure stress-strain evolution; this technique is based upon a single laser beam reflected on the cross section of ductile materials (steel and aluminum) while they are under a compression load. The way we measure one laser beam is by using the Gaussian beam propagation equations; we propose that the reflection area of the laser is going to change as the material surface area is compressed and we analyze these differences by using digital image processing. With this technique we are able to construct a stress-strain diagram.

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mentioning

confidence: 77%

Digital Image Processing Applied to Optical Measurements

Saldaña-Heredia¹,

Aguilar²,

Lara³

et al. 2020

Digital Imaging

View full text Add to dashboard Cite

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Aluminum Strain Measurement by Beam Propagation

Cited by 1 publication

References 11 publications

Digital Image Processing Applied to Optical Measurements

Digital Image Processing Applied to Optical Measurements

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