In-situ Material Testing Instrument for High Temperature Complex Loads
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Solution Overview
Problem
Current testing instruments and technologies are inadequate for evaluating the mechanical properties of materials under high temperature and complex mechanical loads, failing to meet the stringent requirements of key industries like aerospace, automobile manufacturing, and nuclear industry, which restricts the guarantee of material properties and quality control.
Innovation Solution
A modular instrument system incorporating a support frame, high-frequency fatigue load applying module, static-dynamic mechanical load applying module, high/low temperature applying module, and in-situ monitoring module, utilizing electro-hydraulic servo driving technology, piezoelectric ultrasonic driving technology, and uniformly distributed resistance wire radiation heating, to apply precise series-parallel hybrid static-dynamic mechanical loads and monitor deformation damage and microstructure evolution in situ.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing testing instruments and technologies are used, then testing can be conducted under standard conditions, but they cannot meet the requirements for testing mechanical properties under high temperature and complex mechanical loads in situ
Solution Approach 1:
The patent combines multiple testing functions into a single integrated instrument system that can simultaneously apply complex mechanical loads (tension, compression, bending, torsion) and control high temperature environments, enabling in situ testing that merges previously separate testing capabilities into one unified platform
Solution Approach 2:
The testing instrument is designed with universal applicability to test various materials under diverse loading conditions and temperature ranges, featuring interchangeable test specimens and programmable control systems that can adapt to different testing requirements across aerospace, automobile manufacturing, and nuclear industry applications
2Measurement precision
If separate testing instruments are used for different load types and temperature conditions, then each instrument can be optimized for its specific function, but the system complexity increases and in situ testing capability is lost
Solution Approach 1:
The instrument system is divided into modular functional components including independent load applying modules for different load types, separate temperature control subsystems, and distinct measurement assemblies, allowing each module to be optimized for its specific function while maintaining overall system integration
Solution Approach 2:
The patent employs a nested structure where measurement assemblies are positioned within the loading chamber, temperature control elements are integrated into the specimen holders, and multiple functional subsystems are hierarchically organized with smaller components nested within larger structural frameworks, reducing spatial requirements and simplifying system architecture
3Ease of operation
If conventional testing methods are used, then testing procedures are simple, but they cannot capture micromechanical behavior and deformation damage modes under complex loads
Solution Approach 1:
The instrument incorporates real-time feedback systems where measurement data from strain gauges, extensometers, and optical sensors are continuously fed back to the control system, enabling dynamic adjustment of loading parameters and providing immediate information on micromechanical behavior and deformation damage modes during testing
Solution Approach 2:
The patent introduces intermediary measurement devices such as extensometers and strain gauges that act as mediators between the specimen and measurement system, capturing detailed micromechanical behavior and deformation information without directly interfering with the loading process, while optical systems serve as intermediaries for non-contact measurement
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables precise measurement of micromechanical behavior and deformation damage modes under complex loads, simulating actual service conditions with a wide temperature range and rich test functions, providing high measurement accuracy and innovative means for material testing.
Implementation Method 1
uniformly distributed resistance wire radiation heating technology
Implementation Method 2
piezoelectric ultrasonic driving technology
Implementation Method 3
electro-hydraulic servo driving technology
Data Source
AI summary
An instrument and method for mechanical properties in situ testing of materials under a high temperature and complex mechanical loads are provided. The instrument includes: a support frame module used to provide a stable support and an effective vibration isolation for each functional module of the instrument; a high-frequency fatigue load applying module used to apply a high-frequency fatigue load on a tested sample; a static-dynamic mechanical load applying module used to apply a combination of static-dynamic tension/compression/bending loads on the tested sample; a high/low temperature applying module used to apply a variable temperature environment from a low temperature to a high temperature on the tested sample; and an in-situ monitoring module that may integrate a surface deformation damage measurement assembly, a three-dimensional strain measurement assembly, a microstructure measurement assembly, and an internal damage detection assembly according to a practical testing requirement.