Shear
Crosssectional Inputs
All references to EN 199511:2004
unless otherwise stated.
This tests a crosssection in shear with
(a) one stress component parallel to the grain and one perpendicular to the grain or,
(b) both components parallel according to Clause 6.1.7
.
Timber type
The timber type of the crosssection. See the timber database section for the types supported by Teretron.
Characteristic strength f_{r,90,k}
The relevant standards do not provide characteristic rolling shear strength perpendicular to the grain for Finnish Birch and Finnish Conifer plywood of a 3mm width.
As such, the user has to provide a value for these types of timber for shear with both components perpendicular to the grain.
Crosssection type
The geometry type of the crosssection.
Width bThe width of a rectangular crosssection, in mm. Depth hThe depth of a rectangular crosssection, in mm. 

Diameter dThe diameter of a circular crosssection, in mm. 
Design shear stress τ_{d}
The design shear stress on a generic crosssection, in MPa.
Area reduction
The area reduction ΔA refers to reductions in the nominal crosssection size that have to be taken into account in the calculation of the member strength (e.g. holes from fasteners) according to Subclause 5.2(2)
.
It should be given as a percentage of the total nominal area of the crosssection.
Contribution of the load distribution system in the member strength properties
Includes factor k_{sys} for the calculation of the member strength, according to Clause 6.6
, for a member that functions as part of a continuous load distribution system.
Note that Subclause 6.6(3)
states that the strength verification for a continuous load distribution system should be carried out assuming shortterm load duration.