据《Теплоэнергетика》2009年2月号报道,对机械零件的结构应力—形变状态最有效和应用最广泛的试验研究方法是光测弹性法,这个方法对于研究复杂形状零件的应力集中是特别有效的。不仅仅是零件的形状,而且当存在加渣、未焊透、裂纹形式的缺陷时都可以引起应力集 According to the “Теплоэнергетика” February 2009 report, the most effective and widely used experimental method for the structural stress-strain behavior of mechanical parts is the photometric elastic method, which is particularly effective for studying stress concentrations in complex shaped parts . Not only the shape of the part, but also when there is slag, welding penetration, cracks in the form of defects can cause stress