平面ISODYNE法及其在复合材料力学中的应用

由J. T. Pindera提出的平面isodyne法是散光法的一种发展。具有非破坏性直接测取受力物体内部应力的特点。不需要大功率的激光器,条纹清晰,无畸变,对于平面应力问题可以得到应力分量的全部信息。在复合材料力学、断裂力学和接触问题等领域有广泛的应用前景。文章闸述了该方法的原理和技术,并应用它得到一受三点弯曲荷载的有裂纹的复合材料梁粘结层的应力分布。

Plane isodyne Method and Its Application in Composite Mechanics

Isodyne Method proposed by J. T. Pindera developed the scattcrlight method, the advantage of which is to measure the inside stress state by a nondestructive method, A small power laser is sufficient to get clear, distortionless fringes. All information would be carried to separate the stresses in the plane-stress field. Isodyne method is very suitible to deal with composite mechanics, fracture and contact problem, The paper described the theory and technique of Isodyne Method. The distribution of the layer stress was gotten by Isodyne Method in a composite beam with cracks under three points bending.