【摘要】 本文根据全息干涉计量学和断裂力学的的基本理论，研究裂纹尖端附近的横向应变，给出了全息干涉法研究裂纹尖端附近横向应变曲线并与力学理论得到的曲线进行比较，有较好的近似。更多还原

【Abstract】 On the basis of the theory of holographic interferometry and fracture me-chanics, the transveres strain at the tip of crack typeⅠ is studied. With the holograph of the strain field of crack tip,the strain curves are quantitatively analyzed,and the re-sults are basically in agreement with the data obtained by fracture mechanics.更多还原