A Photoelasticity Cum Shearing Interferometer for the Experimental Study of Crack-tip Fields in Bimaterial Sytems

9401970 Krishnaswamy这个项目是为开发一种新的光弹型剪切干涉仪提供资金，这种干涉仪被认为在双材料系统中特别有用。在双材料系统中发展的界面裂纹本质上是混合型的，这种类型本身就有些含糊，因为它涉及到任意长度的尺度。该装置是偏振镜和剪切干涉仪的组合，它将被用来获得大范围材料失配的裂纹尖端场的全方位图。***

9401970 Krishnaswamy This project is to supply funding for the development of a new photoelastic type shearing interferometer that is considered to be especially useful in bimaterial systems. Interfacial cracks that develop in bimaterial systems are inherently of the mixed-mode type which itself is somewhat ambiguous since it involves an arbitrary length scale. The proposed device is a combination of polariscope and a shearing interferometer which will be used to obtain all around maps of the crack tip fields for a wide range of material mismatch. ***