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Fatigue Properties of Aluminium Triangular Lattice Plates by Li, Yifan ;Pavier, Martyn J. ;Coules, Harry is a Engineering article available to read on EtoBox.

What is Fatigue Properties of Aluminium Triangular Lattice Plates about?

We propose a method to predict the fatigue life of triangular lattices by using fatigue data from tests on single lattice struts. The method was validated using fatigue tests on 6 identical triangular lattice plates divided into three groups with different initial crack lengths. The predicted fatigue lives of lattices agree very well with the experimental results. A three-stage mechanism of lattice fatigue was observed in the tests, and the crack propagated in the direction 30° to the horizontal axis in the upper half of lattice plate in all three groups. The fatigue crack propagation rate was also studied and calculated by using the effective mechanical parameters from the homogenized structure. Experimental fatigue crack growth rate data were compared with predictions, showing that the proposed method can also predict the crack growth rate in triangular lattices very well.

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Author

Li, Yifan ;Pavier, Martyn J. ;Coules, Harry

Publisher

Elsevier BV

Published

2020

Language

EN

Field

Engineering (Physical Sciences)