应用韧性损伤力学模型以及刚塑性有限元法，分析了金属板材剪切断面变形的过程。
Ductile damage mechanics model and rigid finite element method was adopted to simulate the sheet metal shearing process.
但通过控制纤维产生过程中的压力方向，可能产生在某些情况下能调整自身形状的变形复合材料。
But by controlling the direction and the tension of the fibres during their construction it is possible to produce a morphing composite, which adjusts its shape under certain conditions.
这个过程是必须的，因为这不是真的拼版和用碎纸机粉碎的文档那样碎片可以完美的拼合，撕碎的文档碎片的边缘会有轻微的变形和磨损。
This is necessary because unlike a real jigsaw or a machine-shredded document, in which the pieces fit perfectly, the shreds of a torn document are slightly distorted and frayed at the edges.
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