US3757562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of impact testing a metallic structure
Assignee: ThyssenKrupp Budd Co
•
Filing: 1971-10-20
•
Granted: 1973-09-11
•
Expires: 1991-10-20
Abstract
Abstract A method of testing a metallic structure comprises the steps of providing data relating to the structure, which may be data from a drawing or other source. A scale model of the metallic structure is then made of the metallic structure. The scale model is made of superplastic material having a stress-strain characteristic which is related to the stress-strain characteristic of the metallic structure. The scale model is then subjected to impact or collision testing with the test data acquired being used to determine what the reaction of the metallic structure would be if it were subjected to related impact or collision tests.
Inventors
- 👤 G Goldberg
- 👤 H Wessells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:45
CPC Classifications
G; G01; G01M; G01M7/00; G01M7/08; G01M17/00; G01M17/007; G01M17/0078; G01N; G01N3/00; G01N3/30; G01N33/00; G01N33/0078; G01N33/0083; G01N2203/00; G01N2203/02; G01N2203/022; G01N2203/0244; G01N2203/0246
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
A method of acquiring test data relating to a metallic structure comprising the steps of providing a representation of said metallic structure, providing a forming member shaped to form a scale mOdel of said metallic structure, providing a mass of superplastic metallic material, heating said superplastic material to a superplastic condition, applying a deforming force to force said superplastic material against said member to deform said mass of superplastic material while in a superplastic condition to form a scale model of said metallic structure, permitting said superplastic material to cool to assume stressstrain characteristics related to the stress-strain characteristics of said metallic structure, and subjecting said scale model to an impact testing operation to obtain data corelated to said metallic structure.
Claim 2
Independent Claim
121 words
A method of acquiring test data relating to a metallic structure comprising the steps of providing a representation of said metallic structure, providing a forming member shaped to form a scale mOdel of said metallic structure, providing a mass of superplastic metallic material, heating said superplastic material to a superplastic condition, applying a deforming force to force said superplastic material against said member to deform said mass of superplastic material while in a superplastic condition to form a scale model of said metallic structure, permitting said superplastic material to cool to assume stressstrain characteristics related to the stress-strain characteristics of said metallic structure, and subjecting said scale model to an impact testing operation to obtain data corelated to said metallic structure.
Claim 3
Dependent Claim
28 words
A method of testing a metallic structure as set forth in claim 1 wherein the step of applying a deforming force comprises applying pressure to said superplastic material.
Claim 4
Dependent Claim
29 words
A method of testing a metallic structure as set forth In claim 2 wherein the step of heating said superplastic material comprises heating said superplastic material to approximately 450*F.
Claim 5
Dependent Claim
43 words
A method of testing a metallic structure as set forth in claim 3 wherein the step of subjecting said scale model to an impact testing operation comprises moving said scale model at a predetermined rate of speed into colliding contact with an obstacle.
Claim 6
Dependent Claim
41 words
A method as set forth in claim 4 wherein an additional step is provided of analyzing said scale model after said impact testing to determine what the effect of a related type of impact testing would have on said metallic structure.
References Cited (Backward Citations)
US2446566A
Cited
US3513687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |