Experimental Study on Variable-Amplitude Fatigue of Welded Cross Plate-Hollow Sphere Joints in Grid Structures

<div>Microfracture surface of KQ-4-7 magnified by 2000 times.</div>

Advances in Materials Science and Engineering

Figure 15: Experimental Study on Variable-Amplitude Fatigue of Welded Cross Plate-Hollow Sphere Joints in Grid Structures 