JPS5954837U - Crack propagation velocity measuring device - Google Patents
Crack propagation velocity measuring deviceInfo
- Publication number
- JPS5954837U JPS5954837U JP15043182U JP15043182U JPS5954837U JP S5954837 U JPS5954837 U JP S5954837U JP 15043182 U JP15043182 U JP 15043182U JP 15043182 U JP15043182 U JP 15043182U JP S5954837 U JPS5954837 U JP S5954837U
- Authority
- JP
- Japan
- Prior art keywords
- measuring device
- crack
- propagation velocity
- notch
- test piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は応力腐食割れ試験法の説明図、第２図は同試験
で生じる試験片の亀裂状態を示す図、第３図は本考案の
一実施例を示す亀裂伝播速度計測装置の説明図、第４図
は第３図のＡ部の拡大斜視図、第５薗及び第６図はそれ
ぞれ応力腐食割れ試験に通常使用される試験片の形状、
寸法を示す説明図である。
１１・・・切欠き、１２・・・試験片、１３・・・ピン
、１４・・・Ｕリンク、１５・・唄ツド、１６・・・固
定壁、１７・・・ピン、１８・・・ロッド、２０・・田
−ドセル、２１・・・重錘、２２・・・環境槽、２３・
・・環境液、２４・・・シール、２５・・・演算器、２
６・・・ひずみゲージ、２７・・・換算器、２８・・・
微分器。Fig. 1 is an explanatory diagram of the stress corrosion cracking test method, Fig. 2 is a diagram showing the state of cracks in a test piece that occurs in the test, and Fig. 3 is an explanatory diagram of a crack propagation velocity measuring device showing an embodiment of the present invention. , FIG. 4 is an enlarged perspective view of part A in FIG. 3, and FIGS. 5 and 6 are the shapes of test pieces normally used in stress corrosion cracking tests,
It is an explanatory view showing dimensions. DESCRIPTION OF SYMBOLS 11... Notch, 12... Test piece, 13... Pin, 14... U link, 15... Shot, 16... Fixed wall, 17... Pin, 18... Rod, 20... Field cell, 21... Weight, 22... Environmental tank, 23...
...Environmental liquid, 24...Seal, 25...Arithmetic unit, 2
6...Strain gauge, 27...Converter, 28...
Differentiator.
Claims (1)
切欠き底部に生じる亀裂の伝播速度を計測する亀裂伝播
速度計測装置において、上記試験片の切欠きを形成した
側面と対向する側面に貼付される歪ゲージと、試験片に
作用する引張荷重の値と歪ゲージの出力とを入力として
コンプライアンスを求める演算器と、同演算器の出力を
受けあらかじめ求めであるコンプライアンスと亀裂長さ
との関係値から亀裂長さを求めをる換算器と、同換算器
の出力を時間で微分して伝播速度を求める微分器とを具
備したことを特徴とする亀裂伝播速度計測装置。In a crack propagation speed measuring device that applies a tensile load to a plate-shaped test piece having a notch on the side surface and measures the propagation speed of a crack that occurs at the bottom of the notch, the side surface of the test piece that faces the side surface where the notch is formed. a strain gauge affixed to the specimen, a computing device that calculates compliance by inputting the value of the tensile load acting on the test piece and the output of the strain gauge, and a computing device that receives the output of the computing device and calculates the compliance and crack length determined in advance. A crack propagation velocity measuring device comprising: a converter for determining a crack length from a related value; and a differentiator for determining a propagation velocity by differentiating the output of the converter with respect to time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15043182U JPS5954837U (en) | 1982-10-05 | 1982-10-05 | Crack propagation velocity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15043182U JPS5954837U (en) | 1982-10-05 | 1982-10-05 | Crack propagation velocity measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5954837U true JPS5954837U (en) | 1984-04-10 |
Family
ID=30333650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15043182U Pending JPS5954837U (en) | 1982-10-05 | 1982-10-05 | Crack propagation velocity measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5954837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613445U (en) * | 1984-06-13 | 1986-01-10 | 三菱重工業株式会社 | Crack length measuring device |
-
1982
- 1982-10-05 JP JP15043182U patent/JPS5954837U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613445U (en) * | 1984-06-13 | 1986-01-10 | 三菱重工業株式会社 | Crack length measuring device |
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