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Analysis of Strenght Properties of Carbon Fibre-Reinforced Composites


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Figure 1.

Instron ZWICk Z100 testing machine [op. cit.]
Instron ZWICk Z100 testing machine [op. cit.]

Figure 2.

Sample in the machine’s grips [op. cit.]
Sample in the machine’s grips [op. cit.]

Figure 3.

Machine wires connected to the strain gauges [op. cit.]
Machine wires connected to the strain gauges [op. cit.]

Figure 4.

Composite specimen after tensile strength testing [op. cit.]
Composite specimen after tensile strength testing [op. cit.]

Figure 5.

D-series composite specimen after tensile strength tests [op. cit.]
D-series composite specimen after tensile strength tests [op. cit.]

Figure 6.

TestXpert test control program [op. cit.]
TestXpert test control program [op. cit.]

Figure 7:

Characteristics of tensile stresses as a function of linear deformation for specimen D1 [op. cit.]
Characteristics of tensile stresses as a function of linear deformation for specimen D1 [op. cit.]

Figure 8:

Tensile force characteristics of specimen D1 as a function of time [op. cit.]
Tensile force characteristics of specimen D1 as a function of time [op. cit.]

Figure 9:

Characteristics of tensile stresses as a function of linear deformation for specimen E1 [op. cit.]
Characteristics of tensile stresses as a function of linear deformation for specimen E1 [op. cit.]

Figure 10:

Tensile force characteristic of specimen E1 as a function of time [op. cit.]
Tensile force characteristic of specimen E1 as a function of time [op. cit.]

Figure 11.

Characteristics of tensile stresses as a function of linear deformation for specimen E2 [op. cit.]
Characteristics of tensile stresses as a function of linear deformation for specimen E2 [op. cit.]

Figure 12.

Tensile force characteristic of specimen E2 as a function of time [op. cit.]
Tensile force characteristic of specimen E2 as a function of time [op. cit.]

Figure 13.

Characteristics of tensile stresses as a function of linear deformation for specimen E4 [op. cit.]
Characteristics of tensile stresses as a function of linear deformation for specimen E4 [op. cit.]

Figure 14.

Tensile force characteristic of specimen E4 as a function of time [op. cit.]
Tensile force characteristic of specimen E4 as a function of time [op. cit.]

Figure 15.

Characteristics of tensile stresses as a function of linear deformation for specimen E5 [op. cit.]
Characteristics of tensile stresses as a function of linear deformation for specimen E5 [op. cit.]

Figure 16.

Tensile force characteristic of specimen E5 as a function of time [op. cit.]
Tensile force characteristic of specimen E5 as a function of time [op. cit.]

Figure 17.

Comparative characteristics of tensile stresses as a function of deformation linear deformation [op. cit.]
Comparative characteristics of tensile stresses as a function of deformation linear deformation [op. cit.]

Figure 18.

Comparative characteristics of tensile force as a function of time [op. cit.]
Comparative characteristics of tensile force as a function of time [op. cit.]

Geometrical parameters of C-series specimens [op. cit.]

Designation Width [mm] Thickness [mm] Length [mm]
1C 25 2 250
2C 25 2 250
3C 25 2 250
4C 25 2 250
5C 25 2 250
6C 25 2 250
7C 25 2 250
8C 25 2 250
9C 25 2 250

Geometrical parameters of D-series specimens [op. cit.]

Designation Width [mm] Thickness [mm] Length [mm]
1D 26 2 250
2D 26 2 250
3D 26 2 250
4D 26 2 250
5D 26 2 250
6D 26 2 250
7D 26 2 250
8D 26 2 250
9D 26 2 250

Parameters of fabrics used as reinforcements of composites [39].

Parameter Biaxial fabric IMS65 CTLX Symmetric Interglass 02037 Modular fabric IMS65
Density of fabric sheet g/m2] 6,8 47,5 27,2
thickness [mm] 0,19 0,21 0,21
tensile strength [MPa] 513 443 1450

Geometrical parameters of E-series specimens [op. cit.]

Designation Width [mm] Thickness [mm] Length [mm]
1E 26 2 250
2E 26 2 250
3E 26 2 248
4E 26 2 250
5E 26 2 250
6E 26 2 250
7E 26 2 250
8E 26 2 250

Summary results of strength tests of D-series composite laminate [op. cit.]

Designation Section area S0 [mm2] Maximum tensile force Fm [kN] Tensile strength limit Rm [MPa]
D1 50 16.950 339.009
D2 50 40.040 800.795
D3 50 36.356 727.115
D4 50 26.894 537.885
D5 50 33.539 670.782
D6 50 14.555 291.109

Summary results of strength tests of the E series composite laminate [op. cit.]

Designation Section area S0 [mm2] Maximum tensile force Fm [kN] Tensile strength limit Rm [MPa]
E1 50 18.425 368.501
E2 50 21.414 428.278
E4 50 9.995 199.897
E5 50 13.102 262.031

Averaged results of strength tests [op. cit.]

Parameter D-series E-series
Maximum tensile force Fm [kN] 28.056 15.734
tensile strength limit Rm [MPa] 561.116 314.677

Results of strength tests of specimen D1 [op. cit.]

Lp. Time t [s] Force F [kN] Tension σ [MPa] Tensometer 1 Tensometer 2 Poisson’s ratio [-]
1 44 0.308 6.152 120.776 4.623 -0.038
2 44.2 0.310 6.202 121.518 4.547 -0.037
3 44.4 0.312 6.242 122.241 4.585 -0.038
4 44.6 0.314 6.287 123.060 4.585 -0.037
5 44.8 0.316 6.328 123.859 4.585 -0.037
6 45 0.318 6.362 124.563 4.566 -0.037
7 45.2 0.320 6.402 125.400 4.642 -0.037
8 45.4 0.322 6.449 126.275 4.642 -0.037
9 45.6 0.324 6.489 126.846 4.566 -0.036
10 45.8 0.327 6.532 127.455 4.623 -0.036
11 46 0.328 6.559 128.101 4.452 -0.035
12 46.2 0.330 6.600 129.053 4.566 -0.035
13 46.4 0.332 6.639 129.757 4.623 -0.036
14 46.6 0.334 6.685 130.308 4.604 -0.035
15 46.8 0.337 6.734 130.955 4.490 -0.034
16 47 0.339 6.774 131.526 4.414 -0.034
17 47.2 0.341 6.814 132.287 4.262 -0.032
18 47.4 0.343 6.858 133.200 4.224 -0.032
19 47.6 0.345 6.894 133.847 4.319 -0.032
20 47.8 0.347 6.935 134.437 4.414 -0.033
21 48 0.349 6.981 135.331 4.585 -0.034
22 48.2 0.351 7.026 136.302 4.776 -0.035
23 48.4 0.354 7.076 137.234 4.699 -0.034
24 48.6 0.357 7.131 138.261 4.776 -0.035
25 48.8 0.358 7.167 139.060 4.699 -0.034
26 49 0.361 7.211 139.917 4.604 -0.033
27 49.2 0.363 7.266 140.830 4.433 -0.031
28 49.4 0.366 7.312 141.705 4.528 -0.032
29 49.6 0.368 7.356 142.599 4.661 -0.033
30 49.8 0.370 7.401 143.551 4.680 -0.033

Technical parameters of the Instron ZWICK Z100 testing machine [40].

Maximum test force FN (tension, compression) 100 kN
Test temperature Room up to 1,200°C
Number of furnaces 2
Temperature control Three thermocouples in furnace chamberThree thermocouples next to sample
Traverse speed 0.0005 do 750 mm/min
Accuracy of set rate 0.003% Vnom
Measurement of force in the range from 0.4% to 100% Fnom Class 1
Measurement of force in the range from 2% to 100% Fnom Class 0.5
Initial measurement length of extensometer 11–50 mm
eISSN:
2545-2835
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Engineering, Introductions and Overviews, other, Geosciences, Materials Sciences, Physics