Equivalent acceleration method of creep loads based on consistent failure mode
US11965861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2022 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Jan 7, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0226
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is an equivalent acceleration method of creep loads based on a consistent failure mode. The equivalent acceleration method includes obtaining corresponding tensile strengths; obtaining corresponding creep rupture time; establishing rupture time law, minimum creep rate law and rupture strain law; calculating the value of parameter p in creep damage accumulation model; and dividing the failure mode consistency interval of creep load under variable temperature and variable load. The damage caused by the creep load in the failure mode consistency interval is calculated by using the multi-grade variable temperature and variable load creep nonlinear damage accumulation model, the damage is accelerated to the maximum creep load state in the failure mode consistency interval according to the principle of damage equivalence, and finally the equivalent acceleration of creep load is realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.