Femoral static compression and compression-compression fatigue test method
A technology of fatigue test and compression test, which is applied in the direction of applying stable tension/compression to test the strength of materials, measuring devices, instruments, etc., which can solve the problems of testing the fatigue mechanical properties of the femur, being unable to explore the mechanical properties of the femur, etc.
Active Publication Date: 2020-09-11
HARBIN INST OF TECH
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Problems solved by technology
[0003] At present, there are relatively few test methods for testing the mechanical properties of the femur, and the existing test fixture can only be used to compress the femur in one direction, and it is impossible to explore the mechanical properties of the femur in multiple directions
On the other hand, the existing femur test fixture can only perform static compression tests to test the static mechanical properties of the femur, but cannot perform compression-compression fatigue tests to test the fatigue mechanical properties of the femur
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[0022] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of them. Based on the present invention All other embodiments obtained by persons of ordinary skill in the art without creative efforts, all belong to the scope of protection of the present invention.
[0023] Such as Figure 1 to Figure 5 As shown, the present invention discloses a femoral static compression and compression-compression fatigue test method, which is supported by the National Natural Science Foundation of China (Project Approval Number: 11772105), and the test device used is a fatigue testing machine, and the fatigue testing machine includes The support table 30 and the crossbeam 26 that can be controlled vertically above the support table 30 by the control button 32, the lowe...
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The invention discloses a femoral static compression and compression-compression fatigue test method, and relates to a femur test method. A fatigue testing machine is started, a test fixture is assembled between two chucks; the test fixture has the characteristic of multiple degrees of freedom; a femur is completely put into the test fixture; a lower chuck is controlled by a computer terminal to move upwards; a preload is applied to the femur, the static compression test is carried out and adjustment into a static compression test program is performed; a loading speed and a loading terminationcondition of the force are set; and the compression-compression fatigue test is carried out and adjustment into a compression-compression fatigue test program is performed, the amplitude and the vibration frequency of the lower chuck are set, the loading termination condition of the fatigue testing machine is set, the program is started, the test is started, the test data are recorded, then the force of the fatigue testing machine is unloaded, and the inclination angle of the femur is adjusted to carry out repeated tests. Therefore, the femur can be tested in different directions, and the mechanical property of the femur can be explored more comprehensively.
Description
technical field [0001] The invention relates to a femur test method, in particular to a femur static compression and compression-compression fatigue test method, belonging to the technical field of femoral mechanics tests. Background technique [0002] In recent years, the intersection of medicine and engineering has gradually become a hot issue of scientific research workers. For the field of solid mechanics, it is more closely related to medicine and biology. Biomechanics has become a hot topic in the field of biomechanics and solid mechanics. In the field of biomechanics, there are more and more studies on the femur. [0003] At present, there are relatively few test methods for testing the mechanical properties of the femur, and the existing test fixtures can only be used to compress the femur in one direction, and it is impossible to explore the multi-directional mechanical properties of the femur. On the other hand, the existing femur test fixture can only perform sta...
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Login to View More IPC IPC(8): G01N3/04G01N3/08G01N33/483
CPCG01N3/04G01N3/08G01N33/4833G01N2203/0019G01N2203/0073G01N2203/0075G01N2203/04
Inventor 于红军郝留磊孙锐坚果立成骆杨王天宇许铎
Owner HARBIN INST OF TECH