Publisher : The Korean Society of Mechanical Engineers
DOI : 10.3795/KSME-A.2016.40.3.253
Title & Authors
Wedge Splitting Test and Fracture Energy on Particulate Reinforced Composites Na, Seong Hyeon; Kim, Jae Hoon; Choi, Hoon Seok; Park, Jae Beom; Kim, Shin Hoe; Jung, Gyoo Dong;
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 , room temperature, , and . The fracture energy, calculated from splitting load-crack mouth opening displacement(CMOD) curves, increased with decreasing temperature from to . In addition, the strength of the particulate reinforced composites increased sharply at , 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.
Wedge Splitting Test;Fracture Energy;Digital Image Correlation;Crack Tip Opening Distance (CTOD);
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