The Mechanical Properties of Wood eBook

This eBook from the Gutenberg Project consists of approximately 160 pages of information about The Mechanical Properties of Wood.
Table of Contents
Section Page

Start of eBook1
PART III TIMBER TESTING1
APPENDIX1
ILLUSTRATIONS1
PART I THE MECHANICAL PROPERTIES OF WOOD3
INTRODUCTION3
FUNDAMENTAL CONSIDERATIONS AND DEFINITIONS4
TENSILE STRENGTH7
COMPRESSIVE OR CRUSHING STRENGTH9
SHEARING STRENGTH16
TRANSVERSE OR BENDING STRENGTH:  BEAMS19
TOUGHNESS:  TORSION31
HARDNESS32
CLEAVABILITY33
PART II FACTORS AFFECTING THE MECHANICAL PROPERTIES OF WOOD35
INTRODUCTION35
RATE OF GROWTH35
HEARTWOOD AND SAPWOOD39
WEIGHT, DENSITY, AND SPECIFIC GRAVITY42
COLOR47
CROSS GRAIN48
KNOTS49
FROST SPLITS50
SHAKES, GALLS, PITCH POCKETS51
INSECT INJURIES[37]53
MARINE WOOD-BORER INJURIES53
FUNGOUS INJURIES[39]54
PARASITIC PLANT INJURIES.[46]56
LOCALITY OF GROWTH56
SEASON OF CUTTING58
WATER CONTENT[48]60
TEMPERATURE65
PRESERVATIVES68
PART III TIMBER TESTING[56]68
WORKING PLAN68
FORMS OF MATERIAL TESTED68
SIZE OF TEST SPECIMENS69
MOISTURE DETERMINATION70
MACHINE FOR STATIC TESTS70
SPEED OF TESTING MACHINE71
BENDING LARGE BEAMS75
BENDING SMALL BEAMS77
ENDWISE COMPRESSION79
COMPRESSION ACROSS THE GRAIN80
SHEAR ALONG THE GRAIN81
IMPACT TEST82
HARDNESS TEST:  ABRASION AND INDENTATION84
CLEAVAGE TEST85
TENSION TEST PARALLEL TO THE GRAIN86
TENSION TEST AT RIGHT ANGLES TO THE GRAIN87
TORSION TEST[64]87
SPECIAL TESTS88
APPENDIX89
MECHANICAL PROPERTIES OF WOODS GROWN IN THE UNITED STATES89
PURPOSE OF WORK89
MATERIAL89
DETAILED INSTRUCTIONS90
RECORDS93
PHOTOGRAPHS93
SHRINKAGE AND SPECIFIC GRAVITY93
PURPOSE OF WORK93
MATERIAL94
RADIAL AND TANGENTIAL SHRINKAGE94
VOLUMETRIC SHRINKAGE AND SPECIFIC GRAVITY94
STRENGTH VALUES FOR STRUCTURAL TIMBERS95
BIBLIOGRAPHY111
111
112
120
FOREST SERVICE120
122
Copyrights
Project Gutenberg
The Mechanical Properties of Wood from Project Gutenberg. Public domain.
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