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Patterns of Acoustic Emission Changes with Alterations in the Damage Area of a Composite Material According to the Mises Criterion

 y   
26 jun 2025

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Figure 1.

Dependence in the variation of equivalent stress over time, according to expression (1), during the failure of CM based on the Mises criterion. The deformation rate is set to α˜=20
Dependence in the variation of equivalent stress over time, according to expression (1), during the failure of CM based on the Mises criterion. The deformation rate is set to α˜=20

Figure 2.

Graphs of the variation in AE signal amplitudes over time in relative units during the failure of CM under transverse force, based on the Mises criterion, with varying numbers of CM elements. Simulation parameter values: v˜0=100000
; α˜=20
; r˜=10000
;t˜0=0.0001
. Number of CM elements: 1 − N0; 2 − 2 · N0; 3 − 3 · N0; 4 − 4 · N0; 5 − 5 · N0
Graphs of the variation in AE signal amplitudes over time in relative units during the failure of CM under transverse force, based on the Mises criterion, with varying numbers of CM elements. Simulation parameter values: v˜0=100000 ; α˜=20 ; r˜=10000 ;t˜0=0.0001 . Number of CM elements: 1 − N0; 2 − 2 · N0; 3 − 3 · N0; 4 − 4 · N0; 5 − 5 · N0

Figure 3.

Dependencies of the maximum amplitude of the AE signal (a) and the duration of the AE signal (b) on the increasing damage area (number of elements) in CM under transverse force, based on the Mises criterion
Dependencies of the maximum amplitude of the AE signal (a) and the duration of the AE signal (b) on the increasing damage area (number of elements) in CM under transverse force, based on the Mises criterion

Figure 4.

Dependence of the area under the AE signal curve on increasing damage area (number of elements) in CM under transverse force based on the Mises criterion
Dependence of the area under the AE signal curve on increasing damage area (number of elements) in CM under transverse force based on the Mises criterion

Figure 5.

Dependencies of the percentage increase in maximum amplitude (1), area under the signal curve (2), and duration (3) of the AE signal on the increasing number of elements (damage area) in CM
Dependencies of the percentage increase in maximum amplitude (1), area under the signal curve (2), and duration (3) of the AE signal on the increasing number of elements (damage area) in CM