Download Pes 2013 Crack 14 [UPDATED]
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The following supporting information can be downloaded at: , Figure S1. GPC curves of PCL-Vi-PCL and PCL-b-PCOE-b-PCL; Table S1. The parameters of three-bending tests for the thermosets containing 10 wt% of PCL-b-PE-b-PCL triblock copolymer; Scheme S1. Schematic diagram of three-point bending specimen for the measurement of critical stress intensity factor (KIC).
Mode-I fracture tests were conducted using a single edge notched beam (SENB) geometry, according to the ASTM D5045-99 standard test method. To ensure the plane strain conditions, the following specimen sample geometry was employed: 24 × 6 × 3 mm3. According to the standard, the crack length, a, was selected such that 0.45 < a/W < 0.55, where W is the sample width. The fracture tests were performed using the Lonos tenso test TT1 (Lonos Test, Monza, Italy) dynamometer equipped with 250 N load cell and at a displacement rate of 10 mm/min. The KIC values were calculated, according to the standard as:
where U is the corrected value of the energy and Φ is the energy calibration factor; U is obtained by subtracting Ui from UQ, i.e., the areas underneath the load-displacement curves for the cracked and un-cracked sample, respectively.
Mode I interlaminar fracture toughness tests were carried out to measure the crack propagation energy of the CFRPs in the mode I configuration, according to the standard ASTM D5528. The opening of the Mode I interlaminar fracture toughness, GIC, was measured by testing the DCB (double cantilever beam) specimens and for the statistical purpose, five samples were tested from each set of materials. The aluminum loading blocks were glued on the cracked side of the sample and starting with the tip of the crack, a series of markers were drawn on the lateral side: for the first 5 mm the marker spacing was 1 mm, while the subsequent markers were 5 mm apart from each other. The loading blocks were loaded in tension, with a crosshead speed equal to 1 mm/min, and the monitoring of the crack length and specimen aperture was performed using a speed camera. The crack length is 50 mm and it was introduced into the CFPR during the lamination stage interleaving a releasing film with a 13 µm thickness. The final sample dimensions were 125 × 25 × 4 mm3. 2b1af7f3a8