Advances in Civil Engineering / 2010 / Article / Tab 4

Research Article

Integration of Networks of Sensors and Electronics for Structural Health Monitoring of Composite Materials

Table 4

Material without and with embedded inclusions: tensile strength and acoustic behavior.

Number of samples Average (MPa)DS CV % Strength Average (MPa)DSCV %

Blank samples5319.620.076.151729.4402.33
Samples with integrated device589.722.1824.7168539.92.37

Results / 97.42 % / 3.56
Number of samples Average (MPa)DS CV % Strength Average (MPa)DSCV %

Blank samples334.468.0523.372205.192.36
Samples with integrated device312.531.6112.892295.032.19

Results / 36.37% / 2.9

: tensile strength of the material with integrated inclusion; : tensile strength of blank samples; : stress at which the acoustic events start in blank samples; : stress at which the events begin in sample with embedded device.
DS: Standard Deviation; CV: coefficient of variation; definitions according to ASTM 3039M.

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