Optics and Precision Engineering, Volume. 32, Issue 22, 3266(2024)
Phase-contrast optical coherence tomography method for full-field mechanical measurements of films
Figures & Tables(16)
Fig. 1. Schematic diagram of PC-OCT based film tomographic mechanical measurement system SLD： superluminscent diode； L1-L4： lens； CL： cylindrical lens； CBS： cube beam splitter； R：reference wedge； CF： center filter； CCD： CCD camera； M： mirror； F： filter； G： grating； AAP： Aluminum alloy platen； MPT： Micrometer pressure tablet； HX50-R： R-axis rotary table； TSX-L1： Single-axis translation stage
Fig. 2. PC-OCT based film tomographic mechanical measurement system
Fig. 5. Stress-strain curve of silicone rubber film under compression test
Fig. 8. Relationship between average strain and tensile displacement of silicone rubber film under tensile test
Fig. 10. Stress-strain curve of three-layer hybrid film under compression test.
Fig. 12. Relationship between average strain and tensile displacement of hybrid film under tensile test
Table 1. Results of stress and strain measurement
View tableView in ArticleTable 1. Results of stress and strain measurement
Compression amount/μm Sensor force/N Compressive force/N Stress/kPa Strain/mε 0 6.400 6 / / / 20 6.440 4 0.039 8 1.592 -0.627 1 40 6.480 3 0.079 7 3.188 -1.244 1 60 6.520 1 0.119 5 4.780 -1.887 5 80 6.544 6 0.144 0 5.760 -2.362 9
Table 2. Stress and strain measurements of three-layer hybrid film （Layer 1）
View tableView in ArticleTable 2. Stress and strain measurements of three-layer hybrid film （Layer 1）
Compression amount/μm Sensor force/N Compressive force/N Stress/kPa Strain/mε 0 2.906 3 / / / 20 2.930 8 0.024 5 0.980 -0.268 6 40 2.943 1 0.036 8 1.472 -0.500 9 60 2.967 6 0.061 3 2.452 -0.882 5 80 2.985 9 0.079 6 3.184 -1.273 4
Table 3. Stress and strain measurements of three-layer hybrid film （Layer 2）
View tableView in ArticleTable 3. Stress and strain measurements of three-layer hybrid film （Layer 2）
Compression amount/μm Sensor force/N Compressive force/N Stress/kPa Strain/mε 0 2.906 3 / / / 20 2.930 8 0.024 5 0.980 -0.926 9 40 2.943 1 0.036 8 1.472 -1.651 3 60 2.967 6 0.061 3 2.452 -2.550 9 80 2.985 9 0.079 6 3.184 -3.070 5
Table 4. Stress and strain measurements of three-layer hybrid film （Layer 3）
View tableView in ArticleTable 4. Stress and strain measurements of three-layer hybrid film （Layer 3）
Compression amount/μm Sensor force/N Compressive force/N Stress/kPa Strain/mε 0 2.906 3 / / / 20 2.930 8 0.024 5 0.980 -0.507 8 40 2.943 1 0.036 8 1.472 -0.784 7 60 2.967 6 0.061 3 2.452 -1.087 2 80 2.985 9 0.079 6 3.184 -1.428 3
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Rui WU, Yulei BAI, Bo DONG. Phase-contrast optical coherence tomography method for full-field mechanical measurements of films[J]. Optics and Precision Engineering, 2024, 32(22): 3266
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Received: Jun. 24, 2024
Accepted: --
Published Online: Mar. 10, 2025
The Author Email: DONG Bo (b.dong@gdut.edu.cn)
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