tmo182
Active Member
Hello all,
I am trying to calculate margins of safety for shear and bearing in wood. I am vary familiar with the process in steel and aluminum but this is the first time I have tried to analyze this type of connection in wood. Looking through all of my college textbooks all the joints were in metal. Can I follow the same procedure to calculate the bearing area of the fastener D*t*material bearing strength? Is there some kind of knock down factor for use with wood? I am specifically looking at the main spar attach fitting for a light homebuilt, the spar is built up from birch plywood and Sitka spruce. I have attached a few pictures to help explain what I am taking about.
I am trying to calculate margins of safety for shear and bearing in wood. I am vary familiar with the process in steel and aluminum but this is the first time I have tried to analyze this type of connection in wood. Looking through all of my college textbooks all the joints were in metal. Can I follow the same procedure to calculate the bearing area of the fastener D*t*material bearing strength? Is there some kind of knock down factor for use with wood? I am specifically looking at the main spar attach fitting for a light homebuilt, the spar is built up from birch plywood and Sitka spruce. I have attached a few pictures to help explain what I am taking about.
