Universal Testing Machine for Testing Mechanical Properties of Lumber (Timber) and Wood-Base Structural Material per ASTM D4761
Lumber (American English; used only in North America) or timber (used in the rest of the English speaking world) is a type of wood that has been processed into beams and planks, a stage in the process of wood production. Lumber is mainly used for structural purposes but has many other uses as well.
These test methods cover the evaluation of lumber and wood-based products in structural sizes by various testing procedures.
Significance and Use
4.1 These test methods provide procedures that are applicable under true field conditions, such as in a plant with specimens not at moisture equilibrium.
4.2 The data established by these test methods can be used as follows:
4.2.1 Develop strength and stiffness properties for the population represented by the material being tested (that is, individual grades, grade combinations, species, species groups, or any other defined, identifiable sample).
4.2.2 Confirm the validity of strength and stiffness properties for the population represented by the material being tested.
4.3 The procedures chosen in accordance with these test methods shall be fully documented in the report to facilitate correlation with test results obtained through the use of traditional procedures, such as those set forth in Test Methods D198.
1.1 These test methods cover the determination of the mechanical properties of stress-graded lumber and other wood-base structural material.
1.2 These test methods appear in the following order:
Center point loading
Third point loading
Axial strength in tension
Axial strength in compression
Bend Test – Bending Test – Compression Test – Lumber – Mechanical Properties – Tensile Test – Wood Products – Wood-Base Structural Materials