Bi-directional driving type pipeline fracture simulation experiment device and experiment method
A simulated experimental device and driving technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, can solve the problems of difficult preparation, high risk, and high cost of pipeline fracture test specimens, and achieve reduced work risks and convenience Obtaining and reducing the effect of size error
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[0023] Example one
[0024] Such as Figure 1 to Figure 6 As shown, the two-way hydraulically driven pipeline fracture simulation experiment device includes: pipeline support system 19, pipeline expansion system 18, DIC test system 7, first tie rod 5A, second tie rod 5B, hydraulic cylinder body 16; experimental pipe section 1 The side wall is provided with an axially penetrating pre-crack 9 which is symmetrical about the axial midplane of the experimental pipe section 1; the pipe support system 19 supports both ends of the experimental pipe section 1; the pipe expansion system 18 is provided by the first tie rod 5A, the second tie rod 5B traction expands the side wall of the experimental pipe section 1, causing the experimental pipe section 1 to break; the hydraulic cylinder body 16 provides power for the first tie rod 5A and the second tie rod 5B at the same time; the DIC test system 7 is on the experimental pipe section 1 Real-time observation of the fracture process.
[0025] P...
Example Embodiment
[0036] Example two
[0037] Such as Figure 7 to Figure 10 As shown, the difference between the two-way screw-driven pipeline fracture simulation experiment device and the first embodiment is that the electric motor 24 is used to replace the hydraulic cylinder body 16, and the first screw 23A and the second screw 23B are used to replace the first tie rod 5A. , The second pull rod 5B; the first screw 23A, the second screw 23B and the first taper block 3A, the second taper block 3B are respectively connected by threads.
[0038] Experimental methods for pipe fracture simulation experiments, such as Figure 7 to Figure 10 As shown, the above-mentioned two-way screw-driven pipeline fracture simulation experiment device is different from the first embodiment in that: during the experiment, the motor 23 converts the rotational motion into the first cone block 3A and the second cone block 3B Rotate around the axis and move linearly outward along the axial direction. At the same time, th...
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