In-situ Material Testing Under Multi-Load and Multi-Physical Fields
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Solution Overview
Problem
Current material testing equipment is limited to single-load conditions, failing to simulate the complex composite load and multi-physical field environments that materials encounter in real-world applications, which restricts the development of new materials and high-end equipment manufacturing.
Innovation Solution
A material in-situ test device with a vertical asymmetric arrangement, featuring a precise six-degree-of-freedom composite load applying module, precise torsion module, clamp and electrothermal coupling module, digital speckle strain measurement, and infrared thermal imaging, enabling the application of composite loads and multi-physical fields like cold/hot-electric fields, while using non-contact digital speckle measurement technology to monitor strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If single-load testing equipment is used, then device complexity is reduced, but the ability to simulate real-world composite load conditions deteriorates
Solution Approach 1:
The patent combines multiple load applying mechanisms (tension/compression, bending, torsion) into a single integrated testing device. The support frame integrates multiple actuators and loading mechanisms that can simultaneously apply composite loads, resolving the contradiction by merging separate functions into one unified system.
Solution Approach 2:
The testing device is designed with multi-functional capabilities to apply various types of loads (tension, compression, bending, torsion) and simulate different physical fields (thermal, electric, magnetic). This universal design allows a single device to perform multiple testing functions, improving adaptability while managing complexity through standardized modular components.
2Adaptability or versatility
If conventional single-function test instruments are used, then ease of operation is maintained, but the ability to evaluate material properties under composite loads deteriorates
Solution Approach 1:
The device incorporates real-time monitoring systems with sensors that provide feedback on load application and material response. This feedback mechanism allows operators to control complex composite load testing through standardized interfaces, maintaining ease of operation while achieving advanced evaluation capabilities.
Solution Approach 2:
The patent introduces a control system and software interface as an intermediary between the operator and the complex multi-load mechanisms. This intermediary layer simplifies operation by automating the coordination of multiple actuators and providing user-friendly control, resolving the contradiction between operational simplicity and testing capability.
3Measurement precision
If contact-based strain measurement is used, then measurement precision may be sufficient, but the ability to measure under complex multi-physical fields deteriorates
Solution Approach 1:
The patent replaces traditional contact-based mechanical strain measurement systems with non-contact optical measurement methods. This substitution eliminates interference from contact sensors in complex multi-physical field environments while maintaining or improving measurement precision, resolving the contradiction between precision and adaptability.
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
Enables comprehensive testing of materials under conditions simulating real-world stress states, providing detailed insights into deformation behavior and damage mechanisms, and facilitating the development of advanced materials and equipment by applying composite loads and multi-physical fields.
Implementation Method 1
The strain of the test piece in the test process is measured with the new measurement method—non-contact digital speckle measurement technology
Implementation Method 2
infrared thermal imaging module 6
Data Source
AI summary
Provided are a material in-situ test device and method under multi-load and multi-physical field coupled service conditions. The device is composed of a precise six-degree-of-freedom composite load applying module, a precise torsion module, a precise indentation module, a clamp module and a control module which work together to complete a composite-load and multi-physical field coupled experiment, and is integrated with a digital speckle strain measurement and infrared thermal imaging module and a microscope observation module, so as to carry out in-situ observation and quantitative characterization on material deformation behaviors and damage mechanism phenomena in a composite-load and multi-physical field loading process. For example, loading methods of “cantilever type pure bending, cantilever type tension/compression-torsion, and cantilever type bending-torsion”, etc. can realize the loading of composite load. Silicon nitride ceramic heating sheets, Peltier tiles and current loading are used for achieving simulation of multiple physical fields such as cold/hot-electricity fields.