The Pilodyn instrument as a non-destructive tester of the shock resistance of wood

IRG/WP 2107

P Hoffmeyer

A new non-destructive shock resistance tester, the PILODYN, has been developed. The instrument measures the fracture surface area created by a constant amount of energy. It operates by shooting a blunt pin into wood by an exact amount of energy. The penetration depth is read on a scale. A wide field of application is open to a non-destructive shock resistance tester such as: 1) assessment of the residual strength of poles decaying from the outside; 2) laboratory evaluation of biodeteriorated wood; 3) the state of wood foundations and woody pilework; 4) degree of chemical decomposition of wood; 5) degree of thermal decomposition of wood; 6) measurement of the density (strength) of standing trees; 7) measurement of the density (strength) of sawn timber; 8) production control of wood based panel boards. A review of existing test results as well as new results are presented containing items 1, 6 and 7. An evaluation of the potential of the PILODYN is attempted.


Keywords: DECAY DETECTION; DENSITY; MICROSCOPY; PILODYN; POKING METHOD; MOR; POLES; TREES; NON-DESTRUCTIVE TESTING; SHOCK RESISTANCE; STRENGTH

Conference: 78-09-18/22 Peebles, Scotland, UK


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