ASTM E2948 Rotating Bending Fatigue Testing for Solid Round Fine Wire
ASTM E2948 test method covers the application of rotating bending fatigue tests on a small diameter solid fine wire to measure the specific fatigue strength at a specified life in the fatigue reign, with the strains being linearly elastic. The pre-strain that can impact fatigue life is not considered in this method. The final results are expressed in inch-pound units.
TRUSTED BY
- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
ASTM E2948 Rotating Bending Fatigue Testing Overview
ASTM E2948 provides a test method for determining the fatigue performance of solid round fine wires using rotating bending. The wire specimen is subjected to cyclic bending stresses while rotating until failure occurs.
This standard is widely used to evaluate fatigue life and durability of fine wires used in applications where repeated loading and flexibility are critical.
Scope, Applications, and Benefits
Scope
ASTM E2948 focuses on assessing the fatigue behavior of fine wire under rotating bending conditions. It ensures accurate determination of fatigue life and resistance to cyclic stresses.
The test evaluates:
- Fatigue life (number of cycles to failure)
- Endurance limit
- Crack initiation and propagation
- Material durability under cyclic loading
- Wire quality
Applications
- Medical devices (guidewires, springs)
- Electrical and electronic wires
- Aerospace components
- Fine wire manufacturing
- Quality control laboratories
Benefits
- Provides accurate fatigue performance data
- Simulates real cyclic loading conditions
- Supports product design and reliability
- Enables comparison of materials
- Improves quality assurance
ASTM E2948 Rotating Bending Fatigue Test Process
Sample Preparation
Fine wire specimen is prepared and mounted.
1Rotation and Loading
Wire is rotated under bending stress.
2Cycle Monitoring
Number of cycles until failure is recorded.
3Data Recording & Evaluation
Fatigue life and behavior are analyzed.
4ASTM E2948 Rotating Bending Fatigue Technical Specifications
| Parameter | Details |
|---|---|
| Applicable Materials | Solid round fine wires |
| Loading Type | Cyclic bending stress |
| Frequency | Typically high-speed rotation |
| Specimen Diameter | Fine wire range (sub-mm to mm) |
| Measured Outputs | Cycles to failure, endurance limit |
Instrumentation Used for Testing
- Rotating bending fatigue machine
- Motor and rotation control system
- Specimen holders
- Cycle counter
- Failure detection system
- Data acquisition system
Results and Deliverables
- Fatigue life (cycles to failure)
- Endurance limit
- Failure analysis
- Test condition summary
- ASTM compliance report
Partnering with Infinita Lab for Optimal Results
Infinita Lab addresses the most frustrating pain points in the ASTM E2948 testing process: complexity, coordination, and confidentiality. Our platform is built for secure, simplified support, allowing engineering and R&D teams to focus on what matters most: innovation. From kickoff to final report, we orchestrate every detail—fast, seamlessly, and behind the scenes.
Looking for a trusted partner to achieve your research goals? Schedule a meeting with us, send us a request, or call us at (888) 878-3090 to learn more about our services and how we can support you. Request a Quote
Frequently Asked Questions
ASTM E2948 is a standard test method used to conduct rotating bending fatigue tests on solid round fine wire, evaluating fatigue life under cyclic bending stresses.
ASTM E2948 is important because it helps determine durability and fatigue resistance of fine wires used in medical devices, electronics, and mechanical components subjected to repeated bending.
ASTM E2948 involves rotating a wire specimen under controlled bending stress until failure, measuring number of cycles to determine fatigue life.
ASTM E2948 requires a rotating bending fatigue testing machine, wire grips, and cycle counting systems for accurate fatigue evaluation.
ASTM E2948 results are reported as number of cycles to failure at specified stress levels, indicating fatigue performance of the wire.
Request a Quote
Submit your material details and receive testing procedures, pricing, and turnaround time within 24 hours.
Quick Turnaround and Hasslefree process
Confidentiality Guarantee
Free, No-obligation Consultation
100% Customer Satisfaction
