Analytical evaluation of the two-rail shear test method for composite materials
Source abstract
Abstract
Linear three-dimensional finite element analyses were conducted to evaluate various rail and specimen configurations of the two-rail shear test procedure. Additional analytical evaluations were performed to investigate the effects of specimen aspect ratio, material orientation, loading direction, and the rigidity of the rails on stress distributions. Shear stresses were found to be distributed uniformly over a large region in the specimen gage section for most of the models analyzed, but normally accompanied by significant transverse and axial normal stresses. The results indicated that an axial loading applied to a test fixture of uniform steel rails and a test specimen with aspect ratio of 6 was the preferred test procedure. Simple test specimens of trapezoidal and rectangular geometries, and specimens with tabs, were chosen for further evaluation. Also, the new Wyoming-Modified Two-Rail Shear test fixture was established based on these analyses.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Railway Engineering and Dynamics · Mechanical stress and fatigue analysis · Geotechnical Engineering and Underground Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (20)
Show source-provided references
1. 1995
2. The Wyoming-modified two-rail shear test fixture for composite materials10.1520/CTR10984J ↗
3. Boller KH. A method to measure intralaminar shear properties of composite laminates. Technical report AFML-TR-69-311. Dayton (OH): Air Force Materials Laboratory; December 1969.
4. An experimental and analytical investigation of the rail shear-test method as applied to composite materials10.1007/BF02328411 ↗
5. Black JB Jr., Hart-Smith LJ. The Douglas bonded tapered rail-shear test specimen for fibrous composite laminates. In: Proceedings of the 32nd International SAMPE Symposium, April 1987. p. 360–71.
6. Whitney · 1982
7. Bergner HW, Davis JG, Herakovich CT. Analysis of shear test methods for composite laminates. Report VPI-E-77-14, Blacksburg (VA): Virginia Polytechnic Institute and State University. April 1977.
8. Advanced composites design guide; 3rd ed. Wright Patterson Air Force Base (OH): Air Force Systems Command; 1977. vol. IV.
9. Chatterjee SN, Adams DF, Oplinger DW. Test methods for composites—a status report, vol. III. Shear test methods. Report DOT/FAA/CT-93/17, III. FAA Technical Center, Atlantic City International Airport (NJ): Federal Aviation Administration; June 1993.
10. Hussain AK, Adams DF. An analytical and experimental evaluation of the two-rail shear test for composite materials. Report no. UW-CMRG-R-98-105. Laramie (WY): Composite Materials Research Group, University of Wyoming; February 1998.
11. ASTM Standard D 5379-93. Standard test method for shear properties of composite materials by the V-notched beam method. West Conshohocken (PA): American Society for Testing and Materials.
12. Lewis EQ, Adams DF. An evaluation of composite material shear test methods. Report no. UW-CMRG-R-91-103, Laramie (WY): Composite Materials Research Group, University of Wyoming; May 1991.
13. A comparative study of composite shear specimens using the finite element method
14. The in situ ply shear strength distributions in graphite/epoxy laminated composite10.1177/002199838702100802 ↗
15. Analysis of the rail shear test—applications and limitations10.1177/002199837100500103 ↗
16. MSC/PATRAN version 6.0. Los Angeles (CA): The Macneal-Schwendler Corporation; August 1996.
17. Xie M, Adams DF. A study of compression and shear test methods for composite materials using a nonlinear finite element analysis. Report no. UW-CMRG-R-94-102. Laramie (WY): Composite Materials Research Group, University of Wyoming; June 1994.
18. 1987
19. Results of the ASTM round-robin on the rail shear test for composites10.1520/CTR10728J ↗
20. Kotha S, Adams DF. Analytical investigation of crack initiation and propagation in composite materials. Report no. UW-CMRG-R-98-119. Laramie (WY): Composite Materials Research Group, University of Wyoming; December 1997.