Material Creep Evaluation Using Reference Rate-to-Life Data
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Solution Overview
Problem
Creep tests typically take longer than 1000 hours, necessitating a more efficient evaluation method for creep properties.
Innovation Solution
An evaluation system and method that utilize reference materials within a certain group of materials to efficiently evaluate creep properties by applying parameters from a known reference material to a target material, allowing for conversion calculations based on shared parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a creep test is performed using a creep tester, then creep properties can be investigated, but the test takes longer than 1000 hours
Solution Approach 1:
The patent applies preliminary action by pre-establishing the relationship between steady-state creep rate and creep fracture life through reference material data before evaluating the target material. The system stores reference information including steady-state creep rates and corresponding creep fracture lives, and uses this pre-collected data to predict target material properties without conducting full-duration creep tests, thus significantly reducing test time while maintaining evaluation accuracy
Solution Approach 2:
The patent uses copying by utilizing data from reference materials to represent and predict the properties of the target material. The system acquires steady-state creep rate data from the target material and copies the established relationship pattern from reference materials to estimate the target material's creep fracture life, avoiding the need to perform actual long-duration creep fracture tests on the target material
2Loss of time
If reference information from a reference material is used to evaluate the target material, then evaluation time is reduced, but the evaluation accuracy may be affected by material differences
Solution Approach 1:
The patent applies parameter changes by utilizing the steady-state creep rate as a key parameter that can be measured quickly and used to predict creep fracture life. The system changes from direct measurement of creep fracture life (requiring 1000+ hours) to measurement of steady-state creep rate (much shorter time), then uses the established relationship between these parameters to derive the predicted fracture life, thus achieving both time reduction and maintained accuracy
Data Source
AI summary
An evaluation system for evaluating target members is provided. The evaluation system comprises an information processing device having a processor. The processor is configured to: in a first acquiring step, acquire reference information related to a relationship between a first physical amount and a second physical amount for a reference material, wherein a target material of the target member and the reference material belong to a group of materials, and wherein the first physical amount and the second physical amount for the reference material are different physical amounts related to a creep test of a reference member composed of the reference material; in a second acquiring step, acquire a first physical amount related to a creep test performed on the target member; and in an evaluating step, evaluate a second physical amount of the target member based on the reference information and the first physical amount of the target member.