What's it about?

This work explores quick predictive methods for calculating potentially risky stresses in cemented doublets underdoing temperature change that agree well with finite element analysis. We also provide guidelines for avoiding stress concentrations.



Cemented doublets are ubiquitous in the optics world, but it is not always clear if they will perform as intended in a specific thermal environment due to excessive stress. The stress in the optic can cause debonding or even fracture. Yoder addressed this problem using analytical results from Chen and Nelson (1979) but also expressed some skepticism as to the accuracy and usefulness of those results [1–3]. Closed form analytical solutions are extremely useful when doing trade -off studies to see if a particular geometry or glass choice will cause stress problems...