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US 12,613,172 B2Granted
Method for estimating elastic constants of anisotropic material
AssigneeSeoul National University R&Db Foundation
InventorsJu-Hyi Yim, Ki-Bok Min, Seung-Ki Hong, Yoon-Sung Lee
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a method for estimating the elastic constants of an anisotropic material such as anisotropic rocks such as gneiss and shale even when using a general loader, the method enabling anisotropic elastic constants to be estimated even with only a single core sample, thereby significantly reducing time and costs.
Claims15
A method for estimating elastic constants, comprising:
- collecting a core sample from an anisotropic material;
- applying a load to respective ends of the core sample;
- measuring a strain value on a surface of the core sample to which the load is applied;
- calculating a strain in the same position as a position in which the strain was measured by performing a computer numerical simulation test under the same load condition applied to a core sample while changing an input elastic constant value;
- and
- determining an elastic constant value when an error between the measured strain and the calculated strain is the lowest, as an elastic constant value of the core sample,
- wherein at least one of the load applied to respective ends of the core sample is a concentrated load applied only to a portion of a surface of an end.
4 more elements
A method for estimating elastic constants, comprising:
- collecting a core sample from an anisotropic material;
- applying a load to respective ends of the core sample;
- measuring a strain value on a surface of the core sample to which the load is applied;
- calculating a strain in the same position as a position in which the strain was measured by performing a computer numerical simulation test under the same load condition applied to a core sample while changing an input elastic constant value;
- and
- determining a value of an elastic constant obtained when the error between the measured strain and the calculated strain falls within an allowable range, as an elastic constant value of the core sample,
- wherein at least one of the load applied to respective ends of the core sample is a concentrated load applied only to a portion of a surface of an end.
4 more elements
Dependencies are inferred from the claim text.