The Research on the Compressive Strength Test Method for Lamination Connecting Structure

Two different test methods are used to test the compressive properties of T700/5429 laminated connecting structure. The composites laminations are both connected with a single bolt, but in one test method, the sample is under the state of single side shearing and in the other test method the sample is under the double side shearing. The effect of different test methods on the compressive properties of the sample is analyzed. It is shown that effective compressive failure mode appear at the connecting hole of the sample in the two test methods. But in the single side shearing test method, the stability of the test is poor and the discreteness of the testing data is large. And the limited compressive strength and the offset compressive strength tested based on the single side shearing test method is lower than that of the double side shearing test method. So the double side shearing test method is more suited to test the allowable value of the composites laminated connected structure.