MH Strap Model Test

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Description

The MC portion of the MH module was stacked using the copper buttons as spacers. Stainless steel bars measuring 3-inch wide by 1/8-inch thick were welded along all the corner edges, except the outer radius edges, where the bars were bolted to plates 1,2,13 and 14. The buttons were then knocked out. Nine strain gauge rosettes were mounted on the model. Three rosettes were placed at various locations on along the bottom or inner radius side. Each rosette was centered in a gap between two absorber plates. The same pattern was duplicated on the opposite side. In addition, two rosettes ... continued below

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32 pages

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Weber, K. July 22, 1987.

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Description

The MC portion of the MH module was stacked using the copper buttons as spacers. Stainless steel bars measuring 3-inch wide by 1/8-inch thick were welded along all the corner edges, except the outer radius edges, where the bars were bolted to plates 1,2,13 and 14. The buttons were then knocked out. Nine strain gauge rosettes were mounted on the model. Three rosettes were placed at various locations on along the bottom or inner radius side. Each rosette was centered in a gap between two absorber plates. The same pattern was duplicated on the opposite side. In addition, two rosettes were placed on the top stainless straps that were bolted down. One rosette was placed on each side, located in the center of the strap and the center of the model. The last rosette was placed on the bottom or inner radius of the model, in the first gap. The included graphs plot stress intensity versus load applied for each of the nine rosetts, and for all three load cases. The stress curves are linear in all cases, except for the rosettes mounted on the unwelded straps, where buckling did occur. The maximum stress occurring in the model was between plate 14 and the ground plate on the side near the inner radius. Maximum allowable bending stress for 304 stainless is 18000 psi. Maximum stress seen by the model in this test is 13,554 psi, which represents a 25% overload condition. Deflection curves are linear as well, and all three cases are nearly identical. Gap measurements taken before loading and at 5000 lbs, and 10000 lbs, showed no appreciable difference.

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32 pages

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  • Report No.: FERMILAB-D0-EN-099
  • Grant Number: AC02-07CH11359
  • DOI: 10.2172/1030720 | External Link
  • Office of Scientific & Technical Information Report Number: 1030720
  • Archival Resource Key: ark:/67531/metadc846870

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • July 22, 1987

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

Description Last Updated

  • Aug. 30, 2016, 6:10 p.m.

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Weber, K. MH Strap Model Test, report, July 22, 1987; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc846870/: accessed August 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.