CAREER: Innovative Laser-Based Stress/Strain Measurement Techniques to Solve Challenging Fundamental and Applied Research Problems

干涉应变/斜率玫瑰（ISSR）进一步发展，包括更大的能力，测量多种应变在各向同性和各向异性材料。该方法是一种准无损的残余应力评估方法。ISSR压痕也用于记录制造过程中产生的永久变形，这为工业提供了一种质量控制工具，以避免由于残余应力过大而导致的故障。采用实验与理论相结合的数值方法研究了材料的疲劳与断裂行为。一种新的衍射应变计/玫瑰花结技术也被开发出来，允许在软材料中进行测量。应用包括生物工程材料，如组织和薄层聚合物材料。

The interferometric strain/slope rosette (ISSR) is further developed to include greater capabilities of measuring multiple strains in isotropic and anisotropic materials. The method is being developed as a quasi-nondestructive method of evaluating residual stresses. ISSR indentations are also used to record permanent deformations incurred from manufacturing processes, which offers industries a quality control tool to avoid failures due to excessive residual stresses. Fatigue and fracture behavior of materials is investigated through an integrated experimental-theoretical numerical approach. A new diffraction strain gage/rosette technique is also developed to allow measurements in soft materials. Applications include bioengineering materials such as tissues, and thin-thickness polymer materials.