Break Time II

After the side load I tested the in plane bending (trying to pull the joint apart in the the plane of the frame).  I used split blocks to support the ends of the tube and a 4' solid steel pry bar to apply the load.

 I applied almost 1/2 my body weight to the joint about 4 feet from the support block.  So, the joint was under 300+ ft-lb of torque.  After alternating this load in opposite direction a few times there was a cracking sound and this small flap of carbon pulled free.  Also, a small crack curved under and along the joint fillet..

One good hard heave (probably over 400 ft-lb) and the joint cracked further.

Eventually if failed completely...