Fracture toughness determination for epoxy-based polymer concrete mixtures: Applicability of different rectangular beam and circular disc specimens
The purpose of this study was to examine the potential impact of the testing procedure, the shape of the test sample, loading method and sample size on the KIc value of polymer concrete (PC) materials. The research involved experimental investigations using five different testing techniques and spec...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-07-01
|
| Series: | Composites Part C: Open Access |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666682024000173 |
| _version_ | 1797253938991333376 |
|---|---|
| author | M.R.M. Aliha H.G. Kouchaki M.H. Mohammadi P.J. Haghighatpour N. Choupani P. Asadi M. Akbari M.G. Darvish T. Sadowski |
| author_facet | M.R.M. Aliha H.G. Kouchaki M.H. Mohammadi P.J. Haghighatpour N. Choupani P. Asadi M. Akbari M.G. Darvish T. Sadowski |
| author_sort | M.R.M. Aliha |
| collection | DOAJ |
| description | The purpose of this study was to examine the potential impact of the testing procedure, the shape of the test sample, loading method and sample size on the KIc value of polymer concrete (PC) materials. The research involved experimental investigations using five different testing techniques and specimen types, namely the single edge notched beam (SENB), short bend beam (SBB), semi-circular bend (SCB), edge notch disc bend (ENDB), and center cracked Brazilian disc (CCBD). A typical PC mixture made of mineral silicious aggregate, ML506 epoxy resin, chopped E-glass, and foundry sand filler. Despite the difference in the shape and loading type of the tested samples, the KIc data obtained from all groups of specimens are in good agreement with together and with the SENB proposed by RILEM. Depending on the test type, the KIc value varied from 1.43 to 1.74 MPa.m0.5 and the discrepancy between the data was mainly attributed to the type of loading (compression or bending) and the crack type (center crack or edge crack). The T-stress affects the fracture toughness for different testing samples and configurations. The lowest fracture toughness corresponds to the CCBD specimen (the center cracked disc loaded diametrically). The other test samples with edge cracks and loaded by a three-point bend setup showed KIc = 1.7 - 1.74 MPa.m0.5. Moreover, the fracture toughness data for PC mixtures can be achieved by utilizing sub-sized samples like SBB (for smaller amounts of PC material) instead of larger beam samples (i.e., SENB). |
| first_indexed | 2024-04-24T21:42:01Z |
| format | Article |
| id | doaj.art-da96ddd1ff6440c19387c77edde6d18d |
| institution | Directory Open Access Journal |
| issn | 2666-6820 |
| language | English |
| last_indexed | 2024-04-24T21:42:01Z |
| publishDate | 2024-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Composites Part C: Open Access |
| spelling | doaj.art-da96ddd1ff6440c19387c77edde6d18d2024-03-21T05:37:53ZengElsevierComposites Part C: Open Access2666-68202024-07-0114100446Fracture toughness determination for epoxy-based polymer concrete mixtures: Applicability of different rectangular beam and circular disc specimensM.R.M. Aliha0H.G. Kouchaki1M.H. Mohammadi2P.J. Haghighatpour3N. Choupani4P. Asadi5M. Akbari6M.G. Darvish7T. Sadowski8Welding and Joining Research Center, School of Industrial Engineering, Iran University of Science and Technology (IUST), Narmak, 16846-13114, Tehran, Iran; Department of Mechanical Engineering, Engineering Faculty, Gebze Technical University, 41400, Gebze, Kocaeli, TurkeyWelding and Joining Research Center, School of Industrial Engineering, Iran University of Science and Technology (IUST), Narmak, 16846-13114, Tehran, Iran; School of Mechanical Engineering, Iran University of Science and Technology (IUST), Narmak, 16846-13114, Tehran, IranWelding and Joining Research Center, School of Industrial Engineering, Iran University of Science and Technology (IUST), Narmak, 16846-13114, Tehran, Iran; School of Civil Engineering, Iran University of Science and Technology, Tehran, IranWelding and Joining Research Center, School of Industrial Engineering, Iran University of Science and Technology (IUST), Narmak, 16846-13114, Tehran, IranDepartment of Mechanical Engineering, Engineering Faculty, Gebze Technical University, 41400, Gebze, Kocaeli, TurkeyDepartment of Mechanical Engineering, Faculty of Engineering, Imam Khomeini International University, Qazvin, IranDepartment of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, IranFaculty of Art, Semnan University, 35131-19111, Semnan, IranDepartment of Solid Mechanics, Lublin University of Technology, Nadbystrzycka 40 Str., 20-216, Lublin, Poland; Corresponding author.The purpose of this study was to examine the potential impact of the testing procedure, the shape of the test sample, loading method and sample size on the KIc value of polymer concrete (PC) materials. The research involved experimental investigations using five different testing techniques and specimen types, namely the single edge notched beam (SENB), short bend beam (SBB), semi-circular bend (SCB), edge notch disc bend (ENDB), and center cracked Brazilian disc (CCBD). A typical PC mixture made of mineral silicious aggregate, ML506 epoxy resin, chopped E-glass, and foundry sand filler. Despite the difference in the shape and loading type of the tested samples, the KIc data obtained from all groups of specimens are in good agreement with together and with the SENB proposed by RILEM. Depending on the test type, the KIc value varied from 1.43 to 1.74 MPa.m0.5 and the discrepancy between the data was mainly attributed to the type of loading (compression or bending) and the crack type (center crack or edge crack). The T-stress affects the fracture toughness for different testing samples and configurations. The lowest fracture toughness corresponds to the CCBD specimen (the center cracked disc loaded diametrically). The other test samples with edge cracks and loaded by a three-point bend setup showed KIc = 1.7 - 1.74 MPa.m0.5. Moreover, the fracture toughness data for PC mixtures can be achieved by utilizing sub-sized samples like SBB (for smaller amounts of PC material) instead of larger beam samples (i.e., SENB).http://www.sciencedirect.com/science/article/pii/S2666682024000173Polymer concreteKIc testingDifferent beam and disc shape test samplesGeometry and loading type effectsTheoretical prediction |
| spellingShingle | M.R.M. Aliha H.G. Kouchaki M.H. Mohammadi P.J. Haghighatpour N. Choupani P. Asadi M. Akbari M.G. Darvish T. Sadowski Fracture toughness determination for epoxy-based polymer concrete mixtures: Applicability of different rectangular beam and circular disc specimens Composites Part C: Open Access Polymer concrete KIc testing Different beam and disc shape test samples Geometry and loading type effects Theoretical prediction |
| title | Fracture toughness determination for epoxy-based polymer concrete mixtures: Applicability of different rectangular beam and circular disc specimens |
| title_full | Fracture toughness determination for epoxy-based polymer concrete mixtures: Applicability of different rectangular beam and circular disc specimens |
| title_fullStr | Fracture toughness determination for epoxy-based polymer concrete mixtures: Applicability of different rectangular beam and circular disc specimens |
| title_full_unstemmed | Fracture toughness determination for epoxy-based polymer concrete mixtures: Applicability of different rectangular beam and circular disc specimens |
| title_short | Fracture toughness determination for epoxy-based polymer concrete mixtures: Applicability of different rectangular beam and circular disc specimens |
| title_sort | fracture toughness determination for epoxy based polymer concrete mixtures applicability of different rectangular beam and circular disc specimens |
| topic | Polymer concrete KIc testing Different beam and disc shape test samples Geometry and loading type effects Theoretical prediction |
| url | http://www.sciencedirect.com/science/article/pii/S2666682024000173 |
| work_keys_str_mv | AT mrmaliha fracturetoughnessdeterminationforepoxybasedpolymerconcretemixturesapplicabilityofdifferentrectangularbeamandcirculardiscspecimens AT hgkouchaki fracturetoughnessdeterminationforepoxybasedpolymerconcretemixturesapplicabilityofdifferentrectangularbeamandcirculardiscspecimens AT mhmohammadi fracturetoughnessdeterminationforepoxybasedpolymerconcretemixturesapplicabilityofdifferentrectangularbeamandcirculardiscspecimens AT pjhaghighatpour fracturetoughnessdeterminationforepoxybasedpolymerconcretemixturesapplicabilityofdifferentrectangularbeamandcirculardiscspecimens AT nchoupani fracturetoughnessdeterminationforepoxybasedpolymerconcretemixturesapplicabilityofdifferentrectangularbeamandcirculardiscspecimens AT pasadi fracturetoughnessdeterminationforepoxybasedpolymerconcretemixturesapplicabilityofdifferentrectangularbeamandcirculardiscspecimens AT makbari fracturetoughnessdeterminationforepoxybasedpolymerconcretemixturesapplicabilityofdifferentrectangularbeamandcirculardiscspecimens AT mgdarvish fracturetoughnessdeterminationforepoxybasedpolymerconcretemixturesapplicabilityofdifferentrectangularbeamandcirculardiscspecimens AT tsadowski fracturetoughnessdeterminationforepoxybasedpolymerconcretemixturesapplicabilityofdifferentrectangularbeamandcirculardiscspecimens |