In-situ Material Testing System for Complex Load Spectra
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Solution Overview
Problem
Conventional mechanical testing technologies struggle to accurately evaluate the mechanical properties of materials under complex service conditions, particularly in static and dynamic load spectra, due to limitations in revealing the relationship between microstructure evolution and mechanical behavior, leading to insufficient service safety and reliability of critical materials.
Innovation Solution
A system for in-situ testing of materials that integrates an Arcan biaxial clamping subsystem, press-in test subsystem, biaxial fatigue test subsystem, and biaxial pre-tension loading subsystem, compatible with optical imaging and digital speckle strain analysis, capable of applying various static and dynamic loads to study fatigue failure mechanisms and microstructure evolution under complex stress states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional mechanical testing technology is used, then testing simplicity is maintained, but the ability to reveal the relationship between microstructure evolution and mechanical behavior deteriorates
Solution Approach 1:
The patent combines mechanical testing capabilities with in-situ microscopy observation into a single integrated system. The testing apparatus is designed to accommodate optical or electron microscopy, allowing simultaneous application of loads and real-time observation of microstructure evolution. This merging enables direct correlation between mechanical behavior and microstructural changes without requiring separate testing and observation systems.
Solution Approach 2:
The patent introduces optical or electron microscopy as an intermediary tool to bridge the gap between macroscopic mechanical testing and microscopic microstructure observation. The microscopy system acts as a mediator that translates invisible microstructural changes into visible images, enabling researchers to observe and analyze microstructure evolution during mechanical testing without directly interfering with the testing process.
2Reliability
If conventional testing methods are used, then testing cost is reduced, but service safety and reliability of critical materials deteriorates
Solution Approach 1:
The patent replaces conventional separate mechanical testing and microstructure analysis methods with an integrated in-situ testing system. This substitution allows simultaneous acquisition of mechanical property data and microstructure evolution data, eliminating the need for multiple separate tests and reducing overall testing costs while improving material reliability assessment.
Solution Approach 2:
The integrated system enables self-service by automatically correlating mechanical test data with microstructure observation data. The system captures and processes information from both mechanical sensors and microscopy systems simultaneously, reducing the need for manual data collection and analysis from multiple separate tests, thereby reducing time and cost while improving reliability.
3Measurement precision
If separate testing of mechanical properties and microstructure is conducted, then testing simplicity is maintained, but the ability to obtain real-time dynamic micro-domain deformation behavior deteriorates
Solution Approach 1:
The patent ensures continuous observation and data collection throughout the mechanical testing process. The microscopy system operates continuously during loading, maintaining uninterrupted observation of microstructure evolution. This continuous action captures real-time dynamic deformation behavior without interruption, providing complete information about micro-domain changes throughout the entire testing process.
Data Source
AI summary
A system for in-situ testing of mechanical properties of materials in static and dynamic load spectra, that includes: an Arcan biaxial clamping subsystem, a press-in test subsystem, a biaxial fatigue test subsystem, a biaxial pre-tension loading subsystem, a signal detection subsystem, and a support and adjustment subsystem. A combined guide mechanism in the Arcan biaxial clamping subsystem is rigidly connected to a guide mechanism support block, an x-direction three sensor base and a y-direction force sensor base in the support and adjustment subsystem by threaded connections, respectively. A laser transmitter, a voice coil motor and a laser receiver in the press-in test subsystem are rigidly connected to a two-degree-of-freedom electric moving platform for the laser transmitter, a two-degree-of-freedom electric moving platform for the voice coil motor and a two-degree-of-freedom electric moving platform for the laser receiver in the support and adjustment subsystem by threaded connections, respectively.