An Experimental Investigation of Mechanical Strength of Knotted NiTi SMA Fiber Composite
The paper presents a new design concept for evaluating the mechanical strength of unidirectional composite material with shape memory alloy (SMA) fiber in the presence of matrix crack. NiTi SMA fiber with both ends knotted is used to actively control the composite strength instead of straight fiber for purpose of better ensuring stress transfer from the matrix to the fiber. Experiment is conducted to verify the effectiveness of this new design concept.
Yi Tan and Dongying Ju
Y. L. Zhao "An Experimental Investigation of Mechanical Strength of Knotted NiTi SMA Fiber Composite", Materials Science Forum, Vols. 675-677, pp. 1147-1150, 2011