Research on the Mechanical Characteristics of Cyclic Loading and Unloading of Rock Based on Infrared Thermal Image Analysis

Figure 10

Thermal imaging of the unidirectional cyclic load at 60% of the range; Area 1: 50 mm × 100 mm; Area 2: 240 mm × 40 mm. (a) Sample F-12 before failure (five cycles). (b) Sample F-12 during failure (five cycles). (c) Sample F-12 after failure (five cycles). (d) Sample F-21 before failure (ten cycles). (e) Sample F-21 after failure (ten cycles).

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