8615910081986
nancy@jnkason.com
enLanguage

Fatigue Testing Machine

Jinan Kason: Leading Professional Fatigue Testing Machine Manufacturer and Supplier in China

We have specialized in developing and manufacturing metal, non-metal and composite material testing equipment for many years and have served customers from more than 150 countries and regions. As a professional testing equipment factory, our advantages are specifically reflected in

Complete Production Facilities

Our company has production and office facilities such as scientific research office building, electrical installation and commissioning building, final assembly workshop, heavy machine workshop, machining workshop, blanking workshop, painting workshop, measuring room, product showroom, etc.

Diverse Product Types

Our main products include hydraulic universal testing machines, electronic universal testing machines, compression testing machines, spring testing machines, impact testing machines, torsion testing machines, hardness testers, and testing machine accessories.

Rich Service Experience

Our products are exported to international markets such as Germany, the United States, Spain, Australia, Italy, South Africa, South Korea, Pakistan, Malaysia, Thailand, and Singapore. We have a professional pre-sale, sales and after-sales service team to provide strong technical support and professional services to domestic and foreign users.

Professional Qualification Certification

Our company has successfully passed ISO9001 quality system, ISO14000 environmental management system, occupational health and safety management system, and CE certification. The company has obtained a total of 22 authorized national patents, including 2 national invention patents, 13 national utility model patents, and 7 national design patents.

First 12 Last

Purpose of Chain Sprockets

 

 

Metric Roller Chain Sprocket can be used in almost every type of system. Used in conveyor systems such as conveyors, it can transport food, beverages, grain, and other materials from one place to another. Used in the transmission system, it transfers power from a source such as the engine to various components such as the wheels. Therefore, the product is also widely used in fields such as machine manufacturing,agricultural equipment, automobiles, and military equipment.

Parts of Fatigue Testing Machines

 

Touch Screen Micro Vickers Hardness Testing Machine

Loading Mechanism

Fatigue testing machines apply cyclic loads to specimens using various loading mechanisms such as hydraulic, pneumatic or electromechanical systems. These mechanisms produce controlled forces or displacements applied to the sample.

Electric Plastic Rockwell Hardness Tester

Specimen Fixture

The specimen is securely mounted within the testing machine to ensure proper alignment and prevent any unnecessary movement during testing. The fixation mechanism may vary depending on the type of specimen and the desired loading configuration (tension, compression, bending, etc.).

300/600KN Steel Bar Bending Tester

Load Control

The machine controls the size and pattern of loads applied throughout the test. Load control can be achieved through a feedback mechanism, where a sensor measures the load or displacement and provides input to the control system for adjustment. This ensures that the required load curve is accurately maintained.

Spring Compression and Tensile Testing Machine

Monitoring and Data Acquisition

The fatigue testing machine is equipped with sensors and transducers that can measure various parameters such as load, displacement, strain, and time. These sensors continuously capture data during testing and provide real-time feedback of the sample's response to cyclic loading. The acquired data are then recorded and analyzed for further evaluation.

Automatic Mounting Press

Test Configuration

The machine allows for different test configurations based on the specific requirements of fatigue testing. These configurations include tension-compression, bending, torsion, or multi-axial loading arrangements. The selection of an appropriate test configuration depends on the load conditions expected in the application.

Metallographic Specimen Mounting Press

Test Control and Analysis

Fatigue testing machines are typically controlled by a computer system that enables precise control of loading parameters and automation of testing procedures. The collected data can be analyzed using various techniques such as stress-life (S-N) curves, strain-life curves, or crack growth analysis to evaluate the fatigue behavior of the material.

Features of Fatigue Testing Machines
 

Reliability

Fatigue testing machines provide reliable results by simulating real-life scenarios, allowing manufacturers to test the durability and endurance of their products under different conditions.

 

Cost-Effective

By using a fatigue testing machine, manufacturers can identify design weaknesses and improve product durability before the product is released to the market. This can save a lot of money by preventing costly product recalls or warranty claims.

 

Customizable

Fatigue testing machines can be customized to simulate a wide range of loading conditions and cycles, making it possible to test materials and components under specific scenarios.

 

Accuracy

Modern fatigue testing machines are highly accurate, with advanced sensors and measurement tools that can detect even the slightest changes in the material or component being tested.

 

Safety

Fatigue testing machines are designed to operate safely, with built-in safety features that prevent accidents and injuries.

 

Faster Testing

Fatigue testing machines can test materials and components faster than traditional testing methods, allowing manufacturers to quickly identify design weaknesses and improve their products.

 
Fatigue Testing Machines Parameters (Take Axial Load Fatigue Testing Machine as an Example)

 

MODEL UNITS 370.02 Axial
Max. Load(KN) KN 15, 25
Available actuator KN 15, 25
Actuator dynamic stroke mm 100, 150
Minimum vertical test space – standard height mm 144
Maximum vertical test space – standard height mm 827
Minimum vertical test space – extended height mm 398
Maximum vertical test space – extended height mm 1335
Working height mm 2308
Column spacing (test space width) mm 460
Column diameter mm 76.2
Base width mm 622
Base depth mm 577
Diagonal clearance – standard height mm 17508
Diagonal clearance – extended height mm 22508
Overall height – standard height mm 19898
Overall height – extended height mm 26248

Types of Fatigue Testing Machines

 

 

When we talk about the different types of fatigue testing machines, three types are the most common forms of this machine: strain control, low cycle fatigue, and load control high cycle fatigue.

 

Strain Control

Strain control is a process of controlling the load on an object. It ensures the strain in a component does not exceed the specified value. It refers to controlling the strains within allowable limits and maintaining the controlled strains for long periods.

 

Low Cycle Fatigue

Low cycle fatigue involves applying stress of low levels on an object to reduce its fatigue strength. It is a type of fatigue that occurs due to the large plastic strains that occur before the failure under the load number of the load cycle.

 

Load Control High Cycle Fatigue

Load control high cycle fatigue is when the load applied to an object is changed very quickly and frequently. High cycle fatigue is when a material breaks down due to repeated loading.

Popular Fatigue Testing Machines Applications

 

 

Computer Control Fatigue Testing Machine

Cracked Round Bar

The cracked round bar method is an exciting new standard that has been developed to test polyethylene materials, pipes, and fittings. Polyethylene is being used increasingly for these applications due to the strong, tough, and durable nature of the material enabling it to provide both a long service and low life cycle costs. The purpose of the standard is to accelerate the process of determining the fracture mechanical behavior of the material and ranking the different PE pipe grades.

Nitinol Wire

Nitinol wire is a shape memory alloy composed of Nickel and Titanium in even proportions. This material has shown to be invaluable in a wide range of applications, particularly in the medical field, but is also used for the frames of glasses or in some mechanical watch springs. It is highly biocompatible and flexible which makes it ideal for use as catheter stents, guidewires, super elastic needles, and other critical medical applications. There is a growing need in the medical industry to research its durability limit as it has shown fatigue failure in some crucial applications. To solve this problem, a fatigue test can be created with increasing frequency to monitor the material ability to withstand such deformation.

Auto-Injector Testing

The auto-injector is becoming an ever more popular choice for patients and doctors to replace the traditional syringe injection method. To design the ideal auto-injector, the delivery time of the syringe must be optimized so that drug release is as comfortable as possible for the patient. Factors affecting this delivery time include drug viscosity, needle diameter, and the lubricant used. Subjecting springs with varying degrees of stiffness to different loads is one way to determine the appropriate spring and preload for a given syringe/drug system.

Testing Dental Implants to Standard ISO 14801

A dental implant is a surgical component used to provide resistance to displacement and/or to anchor a prosthesis such as a crown, bridge, or removable prosthesis. ISO 14801 creates a benchmark for in vitro testing to determine the fatigue strength and behavior of endosseous dental implants under simulated worst case conditions for different designs and geometries. A reliable test instrument and a specialized dental fixture are required to meet the full requirements of ISO 14801.

Athletic Shoes

Many shops now offer a full gait analysis service prior to purchase to find the perfect match for your feet. Shoe and shoe material manufacturers alike must be able to prove that their products will withstand a substantial amount of wear and tear before releasing them to market. A popular method of analyzing this is to simulate the impact and rebound of a runner on the sole of the shoe. During a typical gait cycle, these impacts can be higher than 3KN for an adult runner.

Spinal Implant

The load required to result in spinal fracture can be determined via a simple static test, whilst the number of cycles to failure can be resolved by a cyclic test. ASTM F1717-12 is a standard that specifies three static tests (compression bending, tensile bending, and torsion) and one fatigue test (compression bending to fatigue) for spinal implant assemblies in a vertebrectomy (removal of vertebral body) model. This standard is not intended to define levels of performance, but to provide guidelines for evaluating displacements, determining yield load, and evaluating the stiffness and strength of the spinal implant assembly.
 
Preventative Maintenance and Inspection for Fatigue Testing Machine
 
Extend Service Life

Ensure your materials testing machines and instruments are operating properly and reliably by performing preventive, regular maintenance and inspections. Maintenance and inspections preserve the value of the machine and prevent unplanned repairs, thereby extending the life of the test system.

 
Correct the Loopholes

During the inspection process, loopholes can be discovered and corrected in advance, which may otherwise lead to erroneous test results and thus product defects. The system's overall condition, functionality and, most importantly, safety critical points should be checked regularly. In addition, the wear and tear of worn parts should be assessed and recorded.

 
Use the Checklist for Detailed Inspection

Determine the condition of materials testing machines and instruments during inspections. If possible, necessary repairs and replacement of worn parts should be completed immediately. Our service technicians will point out preventive measures and actions so that appropriate steps can be planned and initiated in a timely manner.

 
Replace Engine Oil and Filter

During operation, hydraulic oil will be subject to wear and aging and must be replaced regularly. We recommend preventive oil and filter changes every two years to ensure a fresh oil supply to the hydraulic system. This will minimize wear on all hydraulic components and extend the life of the test system.

 
 
Our Certifications

 

Our company has obtained the following certificates

productcate-1367-853

 
Factory Pictures

 

Below are photos of our factory for you to view

productcate-1500-932

productcate-400-400
productcate-400-400
productcate-400-400
productcate-400-400
productcate-400-400

productcate-1500-987

FAQ

Q: What is the purpose of fatigue testing?

A: Typically, the purpose of fatigue testing is to determine the expected life of a material subjected to cyclic loading, but fatigue strength and crack resistance are also commonly sought values. The fatigue life of a material is the total number of cycles the material can withstand under a single loading scheme. Fatigue testing is also used to determine the maximum load a sample can withstand over a specified number of cycles. All of these properties are extremely important in any industry where materials are subject to fluctuations rather than constant forces.

Q: How to conduct fatigue testing?

A: To perform fatigue testing, the sample is loaded into a fatigue tester or fatigue testing machine with a predetermined test stress and then unloaded to zero load or the opposite load. This load and unload cycle is then repeated until the test is complete.

Q: What are the basis of fatigue testing?

A: Fatigue testing is performed by repeated tension-tension, compression-compression, tension-compression, or other combinations of cyclic loading. Fatigue stress is repeatedly applied to the specimen using various load waveforms.

Q: What is the need for machine testing, repair and maintenance?

A: Regular maintenance and inspections keep your test system running and keep you and the machine safe. Additionally, you can significantly minimize wear and reduce downtime.

Q: What are the three stages of fatigue failure?

A: Fatigue failure is divided into three stages: initiation, extension and final fracture.

Q: What is fatigue in mechanical testing?

A: Fatigue testing is defined as the process by which a material undergoes progressive localized permanent structural changes under conditions which produce fluctuating stresses and strains at some point or points and which, after a sufficient number of fluctuations, may ultimately lead to cracks or complete fracture.

Q: What is the first step or procedure for fatigue analysis?

A: The first stage is the initiation of fatigue cracks from the component surface, where fatigue damage begins with shear cracks on the crystal slip plane. The second stage is crack propagation, which occurs in the direction perpendicular to the applied stress and ultimately leads to fracture.

Q: How frequent are fatigue tests?

A: Fatigue testing is typically performed using low-frequency cyclic loading in the frequency range of 10 to 200 Hz. The norm specifies the number of cycles NF = 107 or 108 for determining the fatigue behavior.

Q: What are the standards for fatigue testing?

A: Tested according to ASTM standards, low cycle fatigue testing targets a run of no more than 100,000 cycles. Depending on the material and customer requirements, the test frequency range can be from 0.25 Hz to over 5 Hz.

Q: What are some examples of fatigue materials?

A: Fatigue occurs when a material is subjected to alternating stress for an extended period of time. Examples of places where fatigue can occur are: springs, turbine blades, aircraft wings, bridges, and bones.

Q: What are the limitations of fatigue testing?

A: This method also has some disadvantages, such as the need for precise strain measurement and control, sensitivity to specimen geometry and alignment, and difficulty in simulating complex loading conditions.

Q: What is the principle of fatigue testing machine?

A: Fatigue testing is a specialized form of mechanical testing that is performed by subjecting a specimen or structure to cyclic loading. These tests are used to generate fatigue life and crack growth data, identify critical locations, or demonstrate the safety of structures that may be prone to fatigue.

Q: How does frequency affect fatigue testing?

A: Generally speaking, the higher the frequency, the higher the fatigue strength. In particular, although the tests performed at 2 and 20 Hz showed the same fatigue limits, a relatively higher fatigue limit was found in the 140 Hz tests.

Q: What is the factor of safety in fatigue testing machine analysis?

A: The fatigue safety factor is the safety factor from fatigue failure for a given design life. The maximum safety factor is 15. For a fatigue safety factor, a value less than 1 indicates failure before the design life is reached.

Q: Can rubber fatigue be reversed?

A: If fatigue is due to oxygen aging, the process cannot be reversed. The properties within the rubber are irreparably changed, meaning entirely new parts have to be made from scratch. When it comes to fatigue due to extreme weather conditions, it's up to the customer to leave the component to continue to wear out before trying to fix the problem.

Q: What types of fatigue testing machines do you offer?

A: We can provide static testing and fatigue testing machines. Fatigue testing system designs include bench top and floor-standing machines. Their fatigue controllers also come in a variety of options.

We're well-known as one of the leading fatigue testing machine manufacturers in China. Please rest assured to buy high quality fatigue testing machine for sale here from our factory. For price consultation, contact us.

Concrete Compressive Strength Testing Machine, Compressive Strength Of Concrete Machine, Digital Display High Stroke Rockwell Hardness Tester