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前言 有机玻璃在成型、加工、装配和使用(试验)过程中,不可避免地会产生残余应力、机械加工应力、装配应力和使用应力,因此应力的定量测定对有机玻璃制件的设计、制造和使用都是必不可少的。 考虑到有机玻璃在成型、加工、装配和使用时所受的外力会导致材料产生光学各向异性,从而形成暂时双折射效应,用光弹性仪可以测得与双折射有关的干涉条纹,这就提供了用光弹性法对这些应力进行工程定量测定的可能性。
Preface Plexiglass in the process of forming, processing, assembly and use (test), inevitably have residual stress, machining stress, assembly stress and stress, so the quantitative determination of the stress on the plexiglass parts design, manufacture and Use is essential. Taking into account the plexiglass in the forming, processing, assembly and use of external forces will cause the material to produce optical anisotropy, resulting in a temporary birefringence effect, the photoelasticity can be measured with the birefringence-related interference fringes, which Provides the possibility of using photoelastic methods to quantitatively determine these stresses.