Wedge Splitting Test;
Fracture Energy;
Digital Image Correlation;
Crack Tip Opening Distance (CTOD);
D O I:
10.3795/KSME-A.2016.40.3.253
中图分类号:
TH [机械、仪表工业];
学科分类号:
0802 ;
摘要:
The effect of temperature on the fracture energy, crack propagation, and crack tip opening displacement (CTOD) was determined for particulate reinforced composites using the wedge splitting test. The materials that were used consisted of a polymer binder, an oxidizing agent, and aluminum particles. The test rate of the wedge splitting specimen was 50 mm/min, the temperature conditions were 50 degrees C, room temperature, -40 degrees C, and -60 degrees C. The fracture energy, calculated from splitting load-crack mouth opening displacement(CMOD) curves, increased with decreasing temperature from 50 degrees C to -40 degrees C. In addition, the strength of the particulate reinforced composites increased sharply at 60 degrees C, and the composites evidenced brittle fracture due to the glass transition temperature. The strain fields near the crack tip were analyzed using digital image correlation.
机构:
Univ Leon, ESTIA, Av Portugal 41, E-24071 Leon, Spain
Univ Ghent, Magnel Lab Concrete Res, Technol Pk Zwijnaarde 904, B-9052 Ghent, BelgiumUniv Leon, ESTIA, Av Portugal 41, E-24071 Leon, Spain
Garcia-Gonzalez, J.
Barroqueiro, T.
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机构:
Univ Lisbon, Inst Super Tecn, DECivil, CERIS ICIST, Av Rovisco Pais, P-1049001 Lisbon, PortugalUniv Leon, ESTIA, Av Portugal 41, E-24071 Leon, Spain
Barroqueiro, T.
Evangelista, L.
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机构:
Univ Stavanger, Inst Konstruksjonstekn & Mat Teknol, UiS, CERIS ICIST, N-4036 Stavanger, NorwayUniv Leon, ESTIA, Av Portugal 41, E-24071 Leon, Spain
Evangelista, L.
de Brito, J.
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机构:
IST Univ Lisboa, Dept Civil Engn Architecture & Georresources, CERIS ICIST, Av Rovisco Pais, P-1049001 Lisbon, PortugalUniv Leon, ESTIA, Av Portugal 41, E-24071 Leon, Spain
de Brito, J.
De Belie, N.
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机构:
Univ Ghent, Magnel Lab Concrete Res, Technol Pk Zwijnaarde 904, B-9052 Ghent, BelgiumUniv Leon, ESTIA, Av Portugal 41, E-24071 Leon, Spain
De Belie, N.
Moran-del Pozo, J.
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机构:
Univ Leon, ESTIA, Av Portugal 41, E-24071 Leon, SpainUniv Leon, ESTIA, Av Portugal 41, E-24071 Leon, Spain
Moran-del Pozo, J.
Juan-Valdes, A.
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机构:
Univ Leon, ESTIA, Av Portugal 41, E-24071 Leon, SpainUniv Leon, ESTIA, Av Portugal 41, E-24071 Leon, Spain
机构:
Dept. of Environ. Sci. and Tech., Faculty of Bioresources, Mie Univ., Tsu, 514-8507, Kamihama-choDept. of Environ. Sci. and Tech., Faculty of Bioresources, Mie Univ., Tsu, 514-8507, Kamihama-cho
机构:
Nanjing Hydraul Res Inst, Mat & Struct Engn Dept, Nanjing 210024, Jiangsu, Peoples R China
Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing 210098, Jiangsu, Peoples R ChinaNanjing Hydraul Res Inst, Mat & Struct Engn Dept, Nanjing 210024, Jiangsu, Peoples R China
Hu, Xin
Hu, Shaowei
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机构:
Nanjing Hydraul Res Inst, Mat & Struct Engn Dept, Nanjing 210024, Jiangsu, Peoples R ChinaNanjing Hydraul Res Inst, Mat & Struct Engn Dept, Nanjing 210024, Jiangsu, Peoples R China
Hu, Shaowei
Fan, Xiangqian
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机构:
Nanjing Hydraul Res Inst, Mat & Struct Engn Dept, Nanjing 210024, Jiangsu, Peoples R ChinaNanjing Hydraul Res Inst, Mat & Struct Engn Dept, Nanjing 210024, Jiangsu, Peoples R China