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Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing
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قراءة كتاب The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing

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The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing

The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing

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دار النشر: Project Gutenberg
الصفحة رقم: 3

href="@public@vhost@g@gutenberg@html@files@12299@[email protected]#BIB_III" class="pginternal" tag="{http://www.w3.org/1999/xhtml}a">Part III: Publications of the United States Government on the mechanical properties of wood, and timber testing

  • ILLUSTRATIONS
  • Frontispiece. Photomicrograph of a small block of western hemlock
  • 1. Stress-strain diagrams of two longleaf pine beams
  • 2. Compression across the grain
  • 3. Side view of failures in compression across the grain
  • 4. End view of failures in compression across the grain
  • 5. Testing a buggy-spoke in endwise compression
  • 6. Unequal distribution of stress in a long column due to lateral bending
  • 7. Endwise compression of a short column
  • 8. Failures of a short column of green spruce
  • 9. Failures of short columns of dry chestnut
  • 10. Example of shear along the grain
  • 11. Failures of test specimens in shear along the grain
  • 12. Horizontal shear in a beam
  • 13. Oblique shear in a short column
  • 14. Failure of a short column by oblique shear
  • 15. Diagram of a simple beam
  • 16. Three common forms of beams—(1) simple, (2) cantilever, (3) continuous
  • 17. Characteristic failures of simple beams
  • 18. Failure of a large beam by horizontal shear
  • 19. Torsion of a shaft
  • 20. Effect of torsion on different grades of hickory
  • 21. Cleavage of highly elastic wood
  • 22. Cross-sections of white ash, red gum, and eastern hemlock
  • 23. Cross-section of longleaf pine
  • 24. Relation of the moisture content to the various strength values of spruce
  • 25. Cross-section of the wood of western larch showing fissures in the thick-walled cells of the late wood
  • 26. Progress of drying throughout the length of a chestnut beam
  • 27. Excessive season checking
  • 28. Control of season checking by the use of S-irons
  • 29. Static bending test on a large beam
  • 30. Two methods of loading a beam
  • 31. Static bending test on a small beam
  • 32. Sample log sheet, giving full details of a transverse bending test on a small pine beam
  • 33. Endwise compression test
  • 34. Sample log sheet of an endwise compression test on a short pine column
  • 35. Compression across the grain
  • 36. Vertical section of shearing tool
  • 37. Front view of shearing tool

    • Pages