JPH0221546U

JPH0221546U -

Info

Publication number: JPH0221546U
Application number: JP10032088U
Authority: JP
Priority date: 1988-07-28
Filing date: 1988-07-28
Publication date: 1990-02-13

Description

[Brief explanation of drawings]

第１図は本考案の据え込み性試験装置の実施例
を示すブロツク図、第２図は同実施例による検出
値の処理を示すブロツク図、第３図は同実施例に
おけるＡＥ波および試験片寸法の検出部の概略図
、第４図はＡＥ波の出力電圧値と加圧プレートの
下降量（圧縮量）の関係図、第５図は従来技術の
据え込み性試験装置の部分図である。１……加圧プレート、２……受台、３……試験
片、４……試験片寸法測定装置、５……ＡＥ波検
出装置、６……管理装置、７……ＡＥ波整波装置
、８……変形破壊判定装置、９……寸法測定演算
装置、１０……表示装置。 Fig. 1 is a block diagram showing an embodiment of the upsetting test device of the present invention, Fig. 2 is a block diagram showing processing of detected values by the embodiment, and Fig. 3 is an AE wave and a test piece in the same embodiment. A schematic diagram of the dimension detection unit, Figure 4 is a relationship diagram between the output voltage value of the AE wave and the amount of descent (compression amount) of the pressure plate, and Figure 5 is a partial diagram of the conventional upsetting test device. . 1... Pressure plate, 2... pedestal, 3... test piece, 4... test piece dimension measuring device, 5... AE wave detection device, 6... management device, 7... AE wave rectifying device , 8... Deformation failure determination device, 9... Dimension measurement calculation device, 10... Display device.

Claims

[Claims for Utility Model Registration] A compressive load applying device that applies a compressive load to a material test piece; an AE wave detection device that detects AE waves generated from the material test piece during the application of the compressive load; An AE wave rectifier that distinguishes it from noise waves and extracts it as an AE signal; A deformation/destruction determination device that outputs a pulse signal when the output value of the AE signal outputted by the AE wave rectifier reaches a set value or more; and compression. a test piece dimension measuring device that measures the dimensions of the material test piece during load application; and a pulse signal output from the deformation failure determination device and a dimension measurement value outputted by the test piece dimension measuring device. The dimensional measurements of the test piece at the first and second output points of the pulse signal output from the deformation failure determination device are read, and the difference between the first and second dimensional measurements is used to determine the size of the test piece. An upsetting test device comprising: a dimensional change calculation device for calculating a dimensional change amount;