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An Adaptable, Multitest, Multichannel Fatigue Test System
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Abstract
A highly adaptable fatigue testing computer system is presented for controlling single or multichannel test machines. The system imposes most common varieties of waveforms and also provides time synchronization between channels, such as in the case of variable amplitude biaxial load histories, and monitors various feedback signals for both data acquisition and alarm purposes. The program operates in a real-time Unix system as a separate stand-alone process. Communication with other users or the operator is done only through a reserved common block of shared memory. This feature allows control and monitoring of all tests over the computer network. A user can simply login remotely and check the test or start a data acquisition task from any workstation in the company, and then take the data files and analyze them on other computers. This paper describes the operation of the software, the methodology behind the hardware selection and the software structure.
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Citation
Bonnen, J. and Conle, F., "An Adaptable, Multitest, Multichannel Fatigue Test System," SAE Technical Paper 950703, 1995, https://doi.org/10.4271/950703.Also In
References
- Boggs, B. C Mondol, N. K. McQuown, R.E. Anderson, J. G. ‘Digital and Analog computer Equipment and Its Application to In-House Testing’ ASTM STP 613 American Society for Testing and Materials 1976 2 26
- Ewing, D. K. ‘Computer-based full scale fatigue’ Int J Fatigue 1 2 1979 89 92
- Downing, S. D. Galliart, D. R. ‘A Fatigue Test System for a Notched Shaft in Combined Bending and Torsion’ ASTM STP 853 American Society for Testing and Materials 1985 24 36
- Nowack, H. Hanschmann, D. Baumhoff, N. Jacoby, G. ‘Developments in hardware and software for computer controlled servo-hydraulic fatigue testing systems’ Int J Fatigue 1 2 1979 93 102
- Utah, D. Malik, H. J. ‘Use of Multistation Computer System for Laboratory Data Acquitision and Control’ ASTM STP 613 American Society for Testing and Materials 1976 61 77
- Nisar, R. ‘Hardware for a General Purpose Materials Testing Computer System Using a Distributed Parallel Processing Architecture’ ASTM STP 710 American Society for Testing and Materials 1980 48 57
- Sunder, R. ‘Automated Fatigue and Fracture Laboratory with Multiple Load Frames and Single Host Computer System’ ASTM STP 1092 American Society for Testing and Materials 1990 232 249
- McGaw, M. A. Bonacuse, P. J. ‘Automation software for a Materials Testing Laboratory’ ASTM STP 1092 American Society for Testing and Materials 1990 211 231
- Lim, C. K. Kuklentz, R. J. ‘Application of the Digital computer to an Accelerated Fatigue Model’ ASTM STP 613 American Society for Testing and Materials 1976 126 141
- Meyn, D. A. Moore, P. G. Bayles, R. A. Denney, P. E. ‘An Inexpensive, Multiple-Experiment Monitoring, Recording, and Control System’ ASTM STP 877 American Society for Testing and Materials 1985 27 43
- Austen, I. M. Holdsworth, K. ‘New developments in the computer control of fatigue machines’ Int Conf Fatigue Eng Mater Struct Institution of Mechanical Engineers 1986 2 485 493
- Sooley, P. M. Hoeppner, D. W. ‘Low-Cost Microprocessor-Based Data Acquisition and Control System for Fatigue Crack Growth Testing’ ASTM STP 877 American Society for Testing and Materials 1985 101 117
- Fleck, N. A. Hooley, T. ‘Development of Low Cost Computer Control’ SEE Conf - Int Conf on Digit Tech in Fatigue Society of Environmental Engineers 1983 309 316
- Richards, F. D. ‘A New Software Concept for Computerized Materials Testing’ ASTM STP 613 American Society for Testing and Materials 1976 50 60
- Pompetzki, M. A. Saper, R. H. Topper, T. H. ‘Software for High Frequency Control of Variable Amplitude fatigue Tests’ Canadian Met Quart 25 2 1986 181 194
- Leese, G. Socie, D. Multiaxial Fatigue: Analysis and Experiments, SAE AE-14 1989
- Bonnen, J. J. F. Conle, F. A. Chu, C.-C. ‘Biaxial Torsion-Bending Fatigue of SAE Axle Shafts’ 1991 SAE Transactions , SAE reprint #910164 February 1991
- Chu, C.-C Conle, F. A. Bonnen, J. J. F. ‘Multiaxial Stress-Strain Modeling and Fatigue Life Prediction of SAE Axle Shafts,’ Symposium on Multiaxial Fatigue, ASTM STP 1191 37 54 1993