Crack Propagation and Fracture Process Zone (FPZ) of Wood in the Longitudinal Direction Determined Using Digital Image Correlation (DIC) Technique
As a state-of-the-art method, the digital image correlation (DIC) technique is used to capture the fracture properties of wood along the longitudinal direction, such as the crack propagation, the strain field, and the fracture process zone (FPZ). Single-edge notched (SEN) specimens made of Douglas f...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-07-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/11/13/1562 |
| _version_ | 1819001775627173888 |
|---|---|
| author | Ying Yu Weihang Zeng Wen Liu He Zhang Xiaohong Wang |
| author_facet | Ying Yu Weihang Zeng Wen Liu He Zhang Xiaohong Wang |
| author_sort | Ying Yu |
| collection | DOAJ |
| description | As a state-of-the-art method, the digital image correlation (DIC) technique is used to capture the fracture properties of wood along the longitudinal direction, such as the crack propagation, the strain field, and the fracture process zone (FPZ). Single-edge notched (SEN) specimens made of Douglas fir (<i>Pseudotsuga menziesii</i>) from Canada with different notch-to-depth ratios are tested by three-point-bending (3-p-b) experiment. The crack mouth opening displacements (CMOD) measured by the clip gauge and DIC technique agree well with each other, verifying the applicability of the DIC technique. Then, the quasi-brittle fracture process of wood is analyzed by combing the load-CMOD curve and the strain field in front of the preformed crack. Additionally, the equivalent elastic crack length is calculated using the linear superposition hypothesis. The comparison between the FPZ evolution and the equivalent elastic crack shows that specimens with higher notch-to-depth ratios have better cohesive effect and higher cracking resistance. |
| first_indexed | 2024-12-20T22:54:34Z |
| format | Article |
| id | doaj.art-be927148b8c7434abcfb61969a8e5201 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-12-20T22:54:34Z |
| publishDate | 2019-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-be927148b8c7434abcfb61969a8e52012022-12-21T19:24:10ZengMDPI AGRemote Sensing2072-42922019-07-011113156210.3390/rs11131562rs11131562Crack Propagation and Fracture Process Zone (FPZ) of Wood in the Longitudinal Direction Determined Using Digital Image Correlation (DIC) TechniqueYing Yu0Weihang Zeng1Wen Liu2He Zhang3Xiaohong Wang4Department of Civil Engineering, Shantou University, Shantou 515063, ChinaDepartment of Civil Engineering, Shantou University, Shantou 515063, ChinaDepartment of Civil Engineering, Beijing Forestry University, Beijing 10083, ChinaCollege of Civil Engineering and Architecture, Zhejiang University, Hanghzou 310027, ChinaDepartment of Civil and Environmental Engineering, University of Wisconsin, Platteville, WI 53818, USAAs a state-of-the-art method, the digital image correlation (DIC) technique is used to capture the fracture properties of wood along the longitudinal direction, such as the crack propagation, the strain field, and the fracture process zone (FPZ). Single-edge notched (SEN) specimens made of Douglas fir (<i>Pseudotsuga menziesii</i>) from Canada with different notch-to-depth ratios are tested by three-point-bending (3-p-b) experiment. The crack mouth opening displacements (CMOD) measured by the clip gauge and DIC technique agree well with each other, verifying the applicability of the DIC technique. Then, the quasi-brittle fracture process of wood is analyzed by combing the load-CMOD curve and the strain field in front of the preformed crack. Additionally, the equivalent elastic crack length is calculated using the linear superposition hypothesis. The comparison between the FPZ evolution and the equivalent elastic crack shows that specimens with higher notch-to-depth ratios have better cohesive effect and higher cracking resistance.https://www.mdpi.com/2072-4292/11/13/1562woodmode I fracturedigital image correlation (DIC), fracture process zone (FRP), crack propagation |
| spellingShingle | Ying Yu Weihang Zeng Wen Liu He Zhang Xiaohong Wang Crack Propagation and Fracture Process Zone (FPZ) of Wood in the Longitudinal Direction Determined Using Digital Image Correlation (DIC) Technique Remote Sensing wood mode I fracture digital image correlation (DIC), fracture process zone (FRP), crack propagation |
| title | Crack Propagation and Fracture Process Zone (FPZ) of Wood in the Longitudinal Direction Determined Using Digital Image Correlation (DIC) Technique |
| title_full | Crack Propagation and Fracture Process Zone (FPZ) of Wood in the Longitudinal Direction Determined Using Digital Image Correlation (DIC) Technique |
| title_fullStr | Crack Propagation and Fracture Process Zone (FPZ) of Wood in the Longitudinal Direction Determined Using Digital Image Correlation (DIC) Technique |
| title_full_unstemmed | Crack Propagation and Fracture Process Zone (FPZ) of Wood in the Longitudinal Direction Determined Using Digital Image Correlation (DIC) Technique |
| title_short | Crack Propagation and Fracture Process Zone (FPZ) of Wood in the Longitudinal Direction Determined Using Digital Image Correlation (DIC) Technique |
| title_sort | crack propagation and fracture process zone fpz of wood in the longitudinal direction determined using digital image correlation dic technique |
| topic | wood mode I fracture digital image correlation (DIC), fracture process zone (FRP), crack propagation |
| url | https://www.mdpi.com/2072-4292/11/13/1562 |
| work_keys_str_mv | AT yingyu crackpropagationandfractureprocesszonefpzofwoodinthelongitudinaldirectiondeterminedusingdigitalimagecorrelationdictechnique AT weihangzeng crackpropagationandfractureprocesszonefpzofwoodinthelongitudinaldirectiondeterminedusingdigitalimagecorrelationdictechnique AT wenliu crackpropagationandfractureprocesszonefpzofwoodinthelongitudinaldirectiondeterminedusingdigitalimagecorrelationdictechnique AT hezhang crackpropagationandfractureprocesszonefpzofwoodinthelongitudinaldirectiondeterminedusingdigitalimagecorrelationdictechnique AT xiaohongwang crackpropagationandfractureprocesszonefpzofwoodinthelongitudinaldirectiondeterminedusingdigitalimagecorrelationdictechnique |