Wood compressive strength test along the grain

Wood fibers have strong longitudinal connections, so the tensile strength along the grain is high. The compressive strength of wood along the grain is smaller than the tensile strength along the grain. The wood along-grain compressive strength test can determine the along-grain compressive strength of a small sample of wood without defects.
Zhongke Testing Reliability Experiment Center has the capability of reliability testing of various types of wood, and provides professional along-grain compressive strength testing services for wood and wood-based products.

Wood can be divided into:
according to how it is used 1) Wood restructured materials such as plywood, particleboard, fiberboard, laminated veneer lumber, laminated lumber, restructured wood, oriented strand board, restructured decorative veneer, etc.
2) Wood-based composite materials such as gypsum particleboard, cement particleboard, wood/plastic composite materials, wood/metal composite materials, wood conductive materials and wood ceramics.

Apply pressure along the grain direction of the wood at a uniform speed until failure to determine the along-grain compressive strength of the wood.
1) At the center of the sample length, measure the width and thickness to the nearest 0. 1 mm.
2) Place the sample at the center of the spherical movable support of the testing machine, load at a uniform speed, and destroy the sample within 1.5 min to 2.0 min, that is, the pointer of the testing machine retreats significantly or the load displayed on the digital display decreases significantly. The failure load is recorded, and the load is allowed to be measured with an accuracy of 100 N.
3) After the sample is destroyed, measure the moisture content of the entire sample in accordance with GB/T 1931-2009.

GB/T 1935-2009 Test method for wood compressive strength along the grain
ISO 3787-1976 Timber Test Method Determination of compressive ultimate stress along the grain
GB/T 1928-2009 General principles for physical and mechanical testing methods of wood
GB/T 1929-2009 Methods for sawing and sample interception of wood physical and mechanical test materials
GB/T 1931-2009 Determination of wood moisture content