JPS6468628A - Evaluation testing method for metal plate residual strain - Google Patents
Evaluation testing method for metal plate residual strainInfo
- Publication number
- JPS6468628A JPS6468628A JP62225890A JP22589087A JPS6468628A JP S6468628 A JPS6468628 A JP S6468628A JP 62225890 A JP62225890 A JP 62225890A JP 22589087 A JP22589087 A JP 22589087A JP S6468628 A JPS6468628 A JP S6468628A
- Authority
- JP
- Japan
- Prior art keywords
- residual strain
- steel sheet
- sheet piece
- metal plate
- moire fringes
- 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.)
- Granted
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE:To shorten a weighing time and to greatly improve evaluation efficiency by evaluating residual strain with the component quantity of vibration frequency generated by vibrating a metal plate. CONSTITUTION:A vibration sensor 2 is fitted to one end of a steel sheet piece 1 and fixed with a hand or jig, and the steel sheet piece 2 is vibrated. The vibration sensor 2 measures the vibration frequency of the steel sheet piece 2, a sensor controller 3 and an analyzer 4 analyze the frequency, which is component-displayed. In this case, there are four kinds of steel sheet pieces, i.e. A (superior), B (good), C (normal), and D (abnormal) in the increasing order of residual strain, and a grating irradiation type moire topography type residual strain distribution diagram shows that A and B have no moire fringes, C has moire fringes at the peripheral part of the steel sheet piece, and D has moire fringes entirely. Those are compared to decide the quantity of the residual strain of the metal sheet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225890A JP2655846B2 (en) | 1987-09-09 | 1987-09-09 | Metal plate residual strain evaluation test method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225890A JP2655846B2 (en) | 1987-09-09 | 1987-09-09 | Metal plate residual strain evaluation test method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6468628A true JPS6468628A (en) | 1989-03-14 |
JP2655846B2 JP2655846B2 (en) | 1997-09-24 |
Family
ID=16836476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62225890A Expired - Lifetime JP2655846B2 (en) | 1987-09-09 | 1987-09-09 | Metal plate residual strain evaluation test method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2655846B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100550503B1 (en) * | 2001-08-21 | 2006-02-09 | 캐논 가부시끼가이샤 | Signal output apparatus, image forming apparatus, apparatus for determining a type of sheet, and method for determining a type of sheet |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58174845A (en) * | 1982-04-07 | 1983-10-13 | Mitsubishi Electric Corp | Method of diagnosing insulation of insulated coil |
JPS62293151A (en) * | 1986-06-12 | 1987-12-19 | Nippon Telegr & Teleph Corp <Ntt> | Method and device for diagnosing deterioration of article |
JPS63186122A (en) * | 1987-01-28 | 1988-08-01 | Power Reactor & Nuclear Fuel Dev Corp | Abnormality diagnosing system for structure |
-
1987
- 1987-09-09 JP JP62225890A patent/JP2655846B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58174845A (en) * | 1982-04-07 | 1983-10-13 | Mitsubishi Electric Corp | Method of diagnosing insulation of insulated coil |
JPS62293151A (en) * | 1986-06-12 | 1987-12-19 | Nippon Telegr & Teleph Corp <Ntt> | Method and device for diagnosing deterioration of article |
JPS63186122A (en) * | 1987-01-28 | 1988-08-01 | Power Reactor & Nuclear Fuel Dev Corp | Abnormality diagnosing system for structure |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100550503B1 (en) * | 2001-08-21 | 2006-02-09 | 캐논 가부시끼가이샤 | Signal output apparatus, image forming apparatus, apparatus for determining a type of sheet, and method for determining a type of sheet |
Also Published As
Publication number | Publication date |
---|---|
JP2655846B2 (en) | 1997-09-24 |
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