Thermomechanical Testing Device for Burn-Through Resistance
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Solution Overview
Problem
Existing methods for thermomechanical testing of fire-resistant materials lack repeatability and precision in determining burn-through resistance, making it difficult to objectively assess and compare different materials for fire protection applications.
Innovation Solution
A method and device for thermomechanical testing that involves subjecting a test specimen to a high-speed thermal mass flow while continuously measuring the force applied, allowing for the determination of a force-time profile and burn-through resistance, which includes temperature and momentum measurement, and synchronized data acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If real-world testing methods with human observation are used, then the testing setup is simple, but the measurement precision and repeatability are very poor
Solution Approach 1:
The patent replaces manual human observation with automated measurement systems including force sensors, temperature sensors, and data acquisition systems. This substitution of mechanical/manual systems with automated sensing and data processing equipment directly improves measurement precision while accepting increased device complexity as a necessary trade-off for objective, repeatable results.
2Reliability
If continuous force measurement is implemented, then the repeatability and objectivity increase, but the device complexity and cost increase
Solution Approach 1:
The patent implements continuous force measurement during the thermal mass flow exposure, creating a feedback loop where real-time data is captured and recorded. This feedback mechanism enables objective assessment of burn-through resistance and significantly improves test repeatability, as the same conditions can be reproduced and measured consistently across multiple tests.
Solution Approach 2:
The patent introduces force sensors and data acquisition systems as intermediary elements between the thermal mass flow and the test specimen. These intermediaries enable precise measurement and recording of the forces applied during testing, providing objective data that improves reliability and repeatability while necessitating additional device components.
3Measurement precision
If detailed force-time profile determination is performed, then the assessment accuracy improves, but the data processing complexity increases
Solution Approach 1:
The patent employs continuous force measurement throughout the entire exposure duration, capturing the complete force-time profile rather than discrete snapshots. This continuous data collection provides comprehensive information about the burn-through process, improving assessment accuracy by capturing the full temporal evolution of forces applied to the test specimen.
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 precise, repeatable, and cost-effective testing of materials for fire protection, allowing for accurate determination of burn-through resistance and ignition time, facilitating objective comparison and pre-selection of materials.
Implementation Method 1
the test specimen is subjected to a high-speed thermal mass flow
Implementation Method 2
a force acting on the test specimen by the subjection is continuously determined
Data Source
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Figure 4b~5
AI summary
The invention relates to a method for thermomechanically testing a test object (50), which is supplied with a high-speed thermal mass flow (22). The invention additionally relates to a testing device (10) for thermomechanically testing the test object (50), comprising a mounting (30) with a receiving section (32) and supplying means (20) for providing the high-speed mass flow (22).