A True Triaxial Test System with Variable Dimensions
A test system, true triaxial technology, applied in the direction of applying stable tension/pressure to test the strength of materials, can solve problems such as limitations, and achieve the effects of convenient operation, uniform loading and cost saving
Active Publication Date: 2016-03-16
POWERCHINA ZHONGNAN ENG +1
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a variable-size true triaxial test system that can perform both small-scale tests and large-scale model tests in view of the deficiencies in the prior art, so as to solve the problem of existing true triaxial test machines. Limitations on Specimen Size
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[0024] Such as figure 1 As shown, an embodiment of the present invention includes a first loading frame 1 and a second loading frame 2. The first loading frame 1 includes an upper end face for loading in the Z direction, and a test frame opposite to the upper end face for placing a test frame. The lower end face of the member 8, the right end face for loading in the X direction, the left end face opposite to the right end face, the rear end face for loading in the Y direction; the upper end face, the right end face and / or the left end face, and the rear end face A loading device for loading the test piece 8 is fixed on each of them; the front end face opening of the first loading frame 1 at the relative position of the rear end face; A loading frame 1 is provided with a mounting bar 10; the second loading frame 2 is provided with a chute 15 matching the shape and size of the mounting bar 10; one side of the first loading frame 1 outside the front face is fixed with Two push-p...
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Abstract
The invention discloses a size variable true triaxial test system which comprises first loading frames and a second loading frame, wherein each first loading frame comprises an upper end surface used for loading in the Z direction, a lower end surface opposite to the upper end surface in position and used for placing test pieces, a right end surface used for loading in the X direction, a left end surface opposite to the right end surface in position, and a rear end surface used for loading in the Y direction; loading devices used for loading the test pieces are fixed on the upper end surface, the right end surface and / or the left end surface and the rear end surface; mounting strips are arranged on the first loading frame on the outer side on the front end surface of the first loading frame on the relative position of the rear end surface; sliding grooves matched with the mounting strips in shape and size are formed in the second loading frame; a push-and-pull mechanism used for pushing the second loading frame to slide along the mounting strips is fixed on one side of the first loading frame on the outer side of the front end surface. The size variable true triaxial test system solves the problem of the limitation of test pieces in size in the conventional true triaxial tester.
Description
technical field [0001] The invention relates to the field of test devices, in particular to a true triaxial test system with variable dimensions. Background technique [0002] At present, the existing true triaxial testing machines can only perform small-scale tests, and the sample size is generally about 100mm. Another part of large-scale true triaxial testing machines can only perform large-scale model tests, and the sample size is generally about 1000mm. If it is necessary to conduct both conventional size laboratory tests and large-scale model tests, it is necessary to purchase two sets of test equipment, which constitutes a great waste of space and funds. In addition, when the existing large-scale model testing machines are loaded, usually the entire pressure plate on one side is directly loaded, which is not conducive to the uniform distribution of stress, and it is impossible to meet the requirements of multiple different loading paths on a single loading surface. ...
Claims
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IPC IPC(8): G01N3/12
Inventor 赵海斌刘大安梅松华牛晶蕊陈建胜王洪建
Owner POWERCHINA ZHONGNAN ENG