Creep and Stress-Relaxation Testing Service

Creep and stress-relaxation testing are critical methodologies employed to evaluate the mechanical properties of materials, particularly under prolonged exposure to stress at elevated temperatures. Creep refers to the slow, time-dependent deformation of a material when subjected to a constant load over time, while stress relaxation denotes the gradual reduction in stress experienced by a material held at a constant strain. These tests are particularly significant for assessing the performance of environment-friendly materials, which are increasingly used in various applications due to their sustainable characteristics.

What is Creep and Stress-Relaxation Testing?

Why Do Creep and Stress-Relaxation Testing?

• Creep Testing

Predict Material Failure: By understanding the creep behavior, engineers can predict the time until material failure, ensuring the safety and reliability of structures and components.

Temperature Dependence Analysis: Creep testing at various temperatures helps in understanding how materials behave under high-temperature conditions, which is vital for high-temperature applications.

Design Optimization: Creep data allows for the optimization of material usage and design, leading to more efficient and durable products.

• Stress-Relaxation Testing

Alignment Maintenance: Stress-relaxation testing is crucial for applications where maintaining alignment under load is essential, such as in engine mountings.

Material Durability: It provides insights into the durability of materials under constant strain, which is important for long-term performance in various industries.

Our Services

At CD BioSciences, we offer a comprehensive range of creep and stress-relaxation testing services tailored to the needs of environment-friendly materials analysis. Our services are designed to provide detailed insights into the mechanical properties of materials, ensuring their suitability for sustainable applications.

Sample Requirements

• Geometry and Size: Specimens must conform to specific geometric dimensions as outlined in relevant testing standards.
• Material Type: Suitable materials for testing include polymers, composites, and biocomposites, particularly those developed for environmental sustainability.
• Preparation: Samples should be prepared to eliminate any pre-existing stresses or defects that could affect the test outcomes.

Sample Types

Metals

Alloys and environmentally friendly metal composites.

Polymers

Biodegradable plastics and other eco-friendly polymer formulations.

Composites

Natural fiber-reinforced composites and other innovative materials.

Workflow of Creep and Stress-Relaxation Testing

• Sample Preparation: Specimens are prepared according to standardized dimensions and conditioning protocols.
• Equipment Calibration: Testing equipment is calibrated to ensure accuracy and reliability.
• Testing Procedure: The specimen is subjected to the chosen testing method, with continuous monitoring of deformation and stress.
• Data Collection: Results are recorded and analyzed to determine creep rates, stress relaxation characteristics, and time to rupture.
• Reporting: A comprehensive report detailing the findings, methodologies, and recommendations is provided to the client.

Through a thorough understanding of creep and stress-relaxation testing, combined with a commitment to quality and innovation, our services aim to support the advancement of environment-friendly materials in various industries. If you are interested in our services, please contact us for more information.

Our products and services are for research use only and cannot be used for any clinical purposes.