Composite Specimen Environmental Testing Chamber
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Solution Overview
Problem
Mechanical testing of composite specimens in controlled temperature and humidity environments is limited by the need for direct contact between the test chamber and the specimen, which can alter the specimen's properties and is not representative of real-world conditions.
Innovation Solution
A test apparatus with a temperature and humidity control system that envelops the specimen without direct contact, using a test chamber with a cylindrical design and separate control systems for temperature and humidity, allowing for simulation of desired environmental conditions without contacting the specimen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the test chamber is configured to control humidity and/or wetness, then the environmental control capability is improved, but the test chamber comes into contact with and/or seals relative to the composite specimen, which alters the specimen's properties
Solution Approach 1:
The test chamber is divided into two separate chambers: a first test chamber that contacts the specimen for mechanical testing, and a second test chamber that does not contact the specimen but controls the environmental conditions. This segmentation allows the environmental control functions (humidity, temperature) to be separated from the specimen contact path, eliminating property alteration while maintaining environmental adaptability.
Solution Approach 2:
A transfer mechanism acts as an intermediary between the two chambers, allowing the specimen to be moved from the first chamber to the second chamber without direct contact between the specimen and the environmental control systems. This intermediary enables environmental control while preventing harmful interactions with the specimen.
2Temperature
If the test chamber contacts the composite specimen for environmental control, then the humidity and temperature control is improved, but the testing accuracy is reduced due to non-representative conditions
Solution Approach 1:
By separating the test chamber into two distinct chambers, the invention allows the second chamber to provide accurate temperature and humidity control without physically interacting with the specimen. The first chamber maintains contactless environmental conditions that better represent real-world scenarios, thereby improving measurement precision while retaining environmental control capabilities.
3Adaptability or versatility
If the test chamber is sealed relative to the composite specimen, then the environmental control is improved, but the device complexity increases
Solution Approach 1:
The chamber is segmented into two independent sealed chambers, each optimized for its specific function. The first chamber handles specimen contact and mechanical testing, while the second chamber handles environmental control. This segmentation allows each chamber to be independently sealed and controlled, managing complexity through functional separation rather than requiring a single complex sealed system.
Solution Approach 2:
The transfer mechanism serves as an intermediary that connects the two sealed chambers, allowing specimen movement while maintaining the seal integrity of both chambers. This intermediary enables environmental control in the second chamber without requiring the entire system to be a single complex sealed unit.
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 mechanical testing of composite specimens in controlled temperature and humidity conditions that simulate real-world environments, providing accurate and relevant data without altering the specimen's properties.
Implementation Method 1
a test chamber with a cylindrical design and separate control systems for temperature and humidity
Implementation Method 2
separate control systems for temperature and humidity, allowing for simulation of desired environmental conditions
Data Source
AI summary
A test apparatus includes a first grip, a second grip movable relative to the first grip, a test specimen disposed to provide a load path between the first grip and the second grip, and a test chamber disposed to both substantially envelope the test specimen and move with one of the first grip and the second grip. The test chamber does not contact the test specimen. Another test apparatus includes, a first grip, a second grip movable relative to the first grip, a test specimen disposed to provide a load path between the first grip and the second grip, a first test chamber disposed to both substantially envelope the test specimen and move with one of the first grip and the second grip, and a second test chamber disposed to both substantially envelope both the test specimen and the first test chamber.