Six-dimension loading material mechanical test machine

Abstract

Six-dimensional loading testing machine for materials mechanics disclosed by this invention can realize dynamic and static material mechanics performance test for three-dimensional force and three-dimensional moment. A basic platform is fixed with six Hooke hinges, the movable platform is fixed with six spherical hinges. The test piece is clamped by an upper clamp and a lower clamp. The upper clamp is fixedly connected with the movable platform capable of moving therewith. The lower clamp is fixed on a six-dimensional force sensor. The test piece receives load via the upper and lower clamps. Movement of the movable platform is realized by six retracting rods. Driven by respective actuating motor, the retracting rod parts can realize precise axial retraction. With combination of the six retracting rods, various movement driving processes can be realized on the clamps to exert various single or combined load on the test piece, in order to realize dynamic and static material mechanics performance test for three-dimensional force and three-dimensional moment.

Description

(1) Technical field [0001] The patent of the present invention relates to a testing device for mechanical properties of materials, in particular to a testing device suitable for multi-dimensional loading mechanical properties of standard material mechanical test pieces. It belongs to the technical field of mechanical experiments. (2) Background technology [0002] At present, the test forms of mechanical specimens are basically simple tension, compression, bending, twisting and other forms. However, the actual force of the actual component is quite different from the standard test force (simple tension, compression, bending, twist, etc.), and it is often a combination of various simple test forces, that is, there is a very large gap between the current material use environment and the design basis. difference. This gap causes errors in the strength design and causes early failure of the structure. In general product design, the method of increasing the safety factor is al...

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Problems solved by technology

This gap causes errors in the strength design, leading to early failure of the structure

In general product design, the method of increasing the safety factor is always used to keep the working stress of the parts away from the limit conditions to deal with the above-mentioned design errors, but this will cause bulky structures and waste of materials.

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