FIELD: measurement equipment.
SUBSTANCE: invention relates to wood science and wood-working industry and deals with assessment of mechanical properties of natural and modified wood. Essence of the invention is as follows: indentation of a puncheon is performed into a solid wood specimen and a cavity is formed. The cavity is made in the form of a ball segment at indentation depth of 0.0007 m<h<0.0029 m, and hardness is determined by formula.
EFFECT: providing a possibility of obtaining an overall hardness index representing an integrated hardness value considering anisotropy of wood, methods and methods of its modification, and improving measurement accuracy.
1 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DETERMINING THE WOOD STATIC HARDNESS | 2006 |
|
RU2323428C1 |
| METHOD OF DETERMINING HARDNESS OF COMPOSITE HETEROGENEOUS MATERIALS | 2019 |
|
RU2725902C1 |
| 0 |
|
SU151085A1 | |
| METHOD FOR SUPERSONIC TESTING OF CRUDE WOOD | 2002 |
|
RU2224415C1 |
| METHOD OF EVALUATION OF DUCTILITY OF HARDENED METAL | 1995 |
|
RU2085902C1 |
| PROCESS DIAGNOSING RESONANCE PROPERTIES OF WOOD AND DEVICE FOR ITS IMPLEMENTATION | 1997 |
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| METHOD OF DETERMINING HARDNESS OF COATING ON ARTICLE | 2018 |
|
RU2698474C1 |
| BED FOR DETERMINING CHARACTERISTICS OF STRAINED ROCK | 0 |
|
SU1086164A1 |
| WOOD-POLYMER COMPOSITE | 2022 |
|
RU2810129C1 |
| INDENTATION DEVICE, AUTOMATED MEASUREMENT SYSTEM AND METHOD FOR MATERIALS MECHANICAL PROPERTIES DETERMINATION BY INDENTATION METHOD | 2015 |
|
RU2621935C2 |
