If you are dealing with complicated problems, simplified analyses with simplified models and limited analysis goals would be always helpful. Such simple analyses as your pilot study would provide you with the following benefits:
- Provide a preview to the structural behavior, with less input data (i.e reduced effort)
- Provide insight into what computational options would be appropriate
- Help to plan better on what output to request from full scale analysis, since there would be only less output to examine in the simplified analysis of pilot study.
Pilot studies are helpful in answering “what if” questions in modelling or to test the software and to see if it behaves as expected.
Source: Concepts and Applications of Finite Element Analysis by R. D. Cook et al