An internal/external pressure, tension/compression multiaxial fatigue system
As computers become increasingly powerful, the constitutive models used in structural analysis codes become increasingly sophisticated. With the current generation of supercomputers, it now seems reasonable to consider incorporating relatively detailed representations of the multiaxial deformation response of engineering alloys. To aid in the development of such models and to allow measurement of their constituent parameters, we have designed a complex multiaxial deformation test system. The system to be described has been developed to perform non-proportional cycling of thin-walled metal tubes using internal/external fluid pressure and tensile/compressive axial loading. It has been added to an existing MTS 490 kN load frame with a PDP 11/34-based computer control system. Features of interest include; specimen grips, the high pressure chamber, the hydraulic intensifier and controller, and associated valving and switching. Initial software for this system has been written on the PDP 11/34 in the MTS MultiUser-BASIC language to perform simple proportional multiaxial cyclic deformation to a prescribed effective plastic strain limit.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7158951
- Report Number(s):
- SAND-90-1080C; CONF-900474-1; ON: DE90009510
- Resource Relation:
- Conference: ASTM symposium on rapid load fracture testing, San Francisco, CA (USA), 23 Apr 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
ALLOYS
FATIGUE
TUBES
DESTRUCTIVE TESTING
COMPRESSION
DEFORMATION
PRESSURE EFFECTS
PRESSURE VESSELS
STAINLESS STEEL-316
AUSTENITIC STEELS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CHROMIUM-NICKEL-MOLYBDENUM STEELS
CONTAINERS
CORROSION RESISTANT ALLOYS
HEAT RESIS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
STAINLESS STEELS
STEEL-CR17NI12MO3
STEELS
TESTING
360103* - Metals & Alloys- Mechanical Properties
420500 - Engineering- Materials Testing