A device for testing surface strength
A test device and surface strength technology, which is applied in the direction of applying repeated force/pulsation force to test the strength of materials, and can solve problems such as sharp edges of thin film specimens
Active Publication Date: 2017-06-23
BEIHANG UNIV
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In order to overcome the above problems, the present invention provides a surface strength testing device, which can effectively solve the problem of sharp corners on the edge of the film test piece, and select the fatigue test method of the film test piece to resist punching and impact to obtain the fatigue life of the test piece
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] See figure 1 — Figure 7 , the specific embodiment of the present invention will be further described in conjunction with accompanying drawing:
[0028] The invention provides a surface strength testing device, which includes a machine base, a film fixing part, a stamping part and a stamping driving part. The position connection relationship among them is: the film fixed part, the stamping part and the stamping driving part are all fixedly connected on the machine base.
[0029] Step 1: Install the film fixing part. The fixed part of the film consists of a left clamp body 2, a right clamp body 3, and a film test piece 20. The left clamp body 2 is a cylinder as a whole, and the left clamp body 2 has a round hole on the central axis of the left end surface (the diameter of the round hole is larger than the diameter of the stamping head and smaller than that of the film. The diameter of the test piece), the central axis of the right end face has a counterbore with the s...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A surface strength testing device includes a machine base, a film fixing part, a punching part, and a punching driving part. The film fixing mechanism is connected to the machine base through the bracket, and the film is clamped between the left and right clamps; the design of the stamping head is a cylinder, and when one end of the cylinder is in contact with the punching of the thin test piece, it is an arc surface , the stamping method is designed as two stamping heads fixedly connected to the stamping frame, so that the two stamping heads alternately hit the front and rear surfaces of the film in a cycle; The parts are connected; the force sensor is arranged on the telescopic cylinder, and the actuator and the force sensor are electrically connected with the data acquisition system; the fatigue testing machine of the present invention is mainly used for testing the fatigue characteristics of the thin film specimen, and its operation period is short and energy consumption is low , and effectively improve the efficiency of the fatigue life test.
Description
technical field [0001] The invention relates to a surface strength testing device, in particular to a fatigue test device for testing the fatigue life of a thin film specimen. The device of the present invention utilizes a fatigue test of punching and breaking the center of the thin film specimen, and belongs to the material performance test field. The device has simple structure, high working efficiency and wide applicability. Background technique [0002] In modern industry, fatigue fracture is the main cause of failure of mechanical parts and engineering components. Therefore, it is very important to perform fatigue strength tests on these parts in advance. In order to avoid damage to components due to fatigue fracture, when performing strength check experiments on new equipment or equipment in operation, only by simulating real loads and environments can their fatigue characteristics be truly evaluated. [0003] With the development of modern industry, the research an...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/38
Inventor 陈志同卢延钧牛永松汪广平屈新河
Owner BEIHANG UNIV