Testing device suitable for fabric yarn out-of-plane extraction slip mechanical properties

Abstract

The invention belongs to the field of fabric mechanical property testing, and particularly relates to a testing device suitable for fabric yarn out-of-plane extraction slippage mechanical property. The device comprises a prestress applying system, a middle support, a bottom rotating support, a supporting rod, an external steel frame and a single-shaft loading system. The prestress applying systemcomprises a short cross-shaped steel frame, a sliding block type plain end clamp and a crank rocker force applying component, and bidirectional pre-tensioning loads needed by engineering can be applied through the crank rocker force applying component. Yarn can be drawn out at different angles through cooperation of the middle support and the bottom rotating support. The uniaxial loading system can control the loading rate and obtain an extraction force and an extraction displacement value. According to the invention, engineering practice can be efficiently simulated under test conditions, andthe scientificity and applicability of the test are significantly improved; the device has excellent performance in terms of stability of an applied load, stability of obtaining an extraction force and a displacement value, synchronism, and operability of a test.

Description

technical field [0001] The invention belongs to the field of testing the mechanical properties of fabrics, and in particular relates to a testing device suitable for testing the mechanical properties of fabric yarns pulled out of the plane. Background technique [0002] Fabrics are often damaged due to various reasons during use. When the fabric is damaged, the fabric yarns break or are pulled out of the plane at an angle to the plane of the fabric rather than strictly in the plane of the fabric. The force between the yarns and the mechanical properties of the yarn itself have a decisive influence on the overall mechanical properties of the fabric. Therefore, performing out-of-plane yarn pullout tests will help to understand the physical nature of punctures, chip impacts, and other failures that occur in real fabrics. [0003] Nowadays, there are few devices that can carry out the in-plane extraction test of the yarn at home and abroad, especially the test equipment for th...

AI Technical Summary

Problems solved by technology

The test device has problems such as limited test conditions, poor synchronization of the obtained load-displacement values, large differences between the test conditions and the actual engineering, and it is impossible to realize the out-of-plane extraction test of the yarn at different angles.

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