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34 results about "Compliance method" patented technology

Compliance techniques are subliminal methods used in advertising that are designed to induce a consumer to purchase a particular product. Compliance advertising is distinct from informational advertising, in which information is simply passed on to the consumer.

Testing device for fatigue crack growth rate under seawater corrosive environment and measuring method for testing device

The invention provides a testing device for fatigue crack growth rate under a seawater corrosive environment and a measuring method for the testing device. The testing device is characterized by comprising a three-point bending fixture and a seawater environment container tank, wherein the seawater environment container tank is connected with a circulating seawater supplying device positioned outside the seawater environment container tank. The testing device and the measuring method disclosed by the invention are suitable for measuring the fatigue crack growth rate of a single edge notch SE (B) sample; a conventional three-point bending fixture is inversely mounted, and a machining gap of the SE (B) sample and a compliance measurement COD (Crack Opening Displacement) gauge are enabled to be positioned above the sea level, so that the COD gauge can be measured by a compliance method and the condition that the COD gauge is corroded since the COD gauge is placed in seawater can be avoided; besides, by using an anti-splashing cover plate, the phenomenon that a fixture system and a fatigue testing machine are corroded due to seawater splashing during a fatigue test is prevented; the testing device has high practicality.
Owner:武汉钢铁有限公司

A corrosion fatigue crack growth test device

The invention relates to the field of corrosion fatigue crack measurement, in particular to a corrosion fatigue crack growth test device, which is suitable for measuring the corrosion fatigue crack growth rate and threshold value of materials by the flexibility method, and solves the problem of the fatigue test when the sample is clamped in the prior art. The loading direction of the machine has special requirements, or the parameters of the flexibility formula need to be modified during the clamping extension timing, and the solution is easy to leak. The device includes a load application system, a crack detection system and a temperature control system. The device of the present invention is easy to operate, install and use, and the conventional vertical fatigue testing machine can be used to load the CT sample in the solution, which effectively avoids the leakage of the solution, does not need to modify the flexibility formula, and is suitable for the calculation of the flexibility method at room temperature or high temperature solution Testing of corrosion fatigue crack growth rate and threshold value of materials. Its temperature control is accurate, and it can measure the corrosion fatigue crack growth rate and threshold value of materials under normal temperature solution and high temperature solution, and it is easy to observe the corrosion state of the sample in real time.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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