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8802 Servohydraulic Fatigue Testing System

8802 Servohydraulic Fatigue Testing System

8802 Servohydraulic Fatigue Testing System

Product catalog summary
Overview
The Instron® 8802 is a versatile servohydraulic fatigue testing system designed to meet a wide range of static and dynamic testing requirements. It is suitable for advanced materials and component testing, particularly in fatigue testing and fracture mechanics.

Features
  • High-stiffness load frame with a force capacity of up to ±250 kN.
  • Precision-aligned load frame with twin columns and actuator options.
  • 150 mm of usable stroke, suitable for dynamic and static testing.
  • Various hydraulic configurations and dynamic performance options.
  • Adjustable upper crosshead with hydraulic lifts and locks.
  • Patented Dynacell™ advanced load cell technology for faster testing.
  • Floor-standing system requiring less than 1.2 m² of floor space.
  • Optional hydrostatic bearing actuators for higher side-load resistance.
  • Compatible with the 3520 Series of Hydraulic Power Units and a wide range of accessories.

Controller and Software
The system includes a digital 8800 controller with features like automatic loop tuning, amplitude control, and adaptive control technology. It supports WaveMatrix™ Dynamic Testing Software and Bluehill® Software for static tests.

Typical Testing Applications
  • Fatigue Testing: Supports high-frequency fatigue testing with various grips and extensometers.
  • Fracture Mechanics: Configurable with CT grips and crack measurement sensors.
  • Thermomechanical Fatigue (TMF): Simulates mechanical fatigue with thermal cycling.
  • High-Temperature Testing: Supports low-cycle fatigue and other tests at high temperatures.

Specifications
  • Dynamic Load Capacity: Up to 250 kN.
  • Actuator Stroke: Standard offering of 150 mm.
  • Load Weighing Accuracy: ±0.5% of indicated load or ±0.005% of load cell capacity.
  • Hydraulic Pressure Supply: 207 bar (3000 psi).
  • Operating Environment: +10 to +38°C with 10 to 90% humidity.

Accessories
  • Various grips and fixtures for specific testing needs, including fatigue-rated hydraulic wedge grips and fracture mechanics grips.

Dimensions
The document provides detailed dimensions for standard, extra, and extra-extra height frames, with specifications for actuator placement and load cell interfaces.
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Catalog excerpts

8802 Servohydraulic Fatigue Testing System-1

8802 Servohydraulic Fatigue Testing System Up to 250 kN The Instron® 8802 is a versatile servohydraulic fatigue testing system that meets the challenging demands of a varied range of static and dynamic testing requirements. 8802 systems provide complete testing solutions to satisfy the needs of advanced materials and component testing, and are ideally suited for fatigue testing and fracture mechanics. With a large number of configurations and options available, the 8802 system provides a versatile platform for any laboratory. Features • High stiffness load frame with force capacity of to ±250 kN • High-stiffness, precision-aligned load frame with twin columns and actuator in lower base or upper crosshead • 150 mm (6 in) of usable stroke • Designed for both dynamic and static testing on a variety of materials and components • Patented1, Dynacell™ advanced load cell technology for faster testing and reduction of inertial errors • Floor-standing servohydraulic fatigue testing system – frame requires less than 1.2 m² (12.9 ft²) of floor space • Optional hydrostatic bearing actuators for higher side-load resistance or material critical applications, such as low-cycle fatigue • Choice of hydraulic configuration and dynamic • Designed to be used with the performance to suit application 3520 Series of Hydraulic Power Units • Extra-height and Extra-extra height frame options for • Compatible with a large range testing longer load strings of grips, fixtures, chambers, video extensometers, • Adjustable upper crosshead protective shields, and with hydraulic lifts and locks fitted as standard for easy other accessories adjustment of daylight Controller and Software The Instron 8802 is supplied with a digital 8800 controller that provides full system control including features such as automatic loop tuning, amplitude control, specimen protect, 19-bit resolution across the full range of transducers, and adaptive control technology. It also allows access to WaveMatrix™ Dynamic Testing Software, Bluehill® Software for static tests, and other application specific software, such as the Low Cycle Fatigue or Fracture Mechanics suite.

 Open the catalog to page 1
8802 Servohydraulic Fatigue Testing System-2

Typical Testing Applications A wide range of system options, grips, fixtures, and accessories, allow Instron® 8802 systems to be customized for specific applications. Whether the test application demands low or high temperatures, crack measurement, or complex specimen gripping geometry, Instron offers a complete tailored package. Fatigue Testing Mechanical or hydraulic wedge-action or collet grips, fastener grips, and dynamic extensometers allow high-frequency fatigue testing of a variety of specimens. Tests can be at ambient conditions or combined with environmental accessories for testing at...

 Open the catalog to page 2
8802 Servohydraulic Fatigue Testing System-3

High-Temperature Testing Low-cycle fatigue (LCF) and other tests can be carried out at very high temperatures using furnace technologies and specialized load strings. T-Slot Table Options T-Slot base machines with the actuator in crosshead are available for testing components and structures. Thermomechanical Fatigue (TMF) Using specialized heating technologies, TMF systems simulate the combined effects of mechanical fatigue with the thermal cycling, normally experienced by gas turbines and similar equipment during operation. www.instron.com

 Open the catalog to page 3
8802 Servohydraulic Fatigue Testing System-4

8802 Servohydraulic Fatigue Testing System | Up to 250 kN Note! All dimensions in mm System is with ±75 mm stroke 250 kN actuator Dynamic Load Capacity Actuator Stroke Actuator Force Rating Extra-Extra Height Frame (Maximum Between Load Cell and Actuator at Mid-stroke, with Largest Capacity Actuator) Extra Height Frame Standard Height Frame Daylight Opening Hydraulically-Powered Lifts and Locks Patented1 Dynacell™ Fatigue-Rated Load Cell with Capacity to Suit Actuator ±0.5% of Indicated Load or ±0.005% of Load Cell Capacity (1-100), Whichever is Greater Manifold Options Single Valve, Dual Valve,...

 Open the catalog to page 4

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