To whom it may concern

The falling weight deflectometers are sold around the world, however, they have not offered any dynamic analytical method or softwares that could be used for the interpretation the deflection data of the FWD. The currently used methods are all based on static analysis. This limits the use of the FWD machine greatly. I’m writing this because I've developed an accurate and fast algorithm which could calculate the dynamic deflections of the pavement under FWD pulse load. It will help the use of FWD.
I’ve made a presentation at the TRB annual meeting about this method. The paper was included in the CD of the meeting.
This paper provides a feasible algorithm which can compute the dynamic response of pavement structure under resilient load pulse. It is an accurate and fast program and can also deal with viscoelastic materials as well such as AC layer. This program will have a lot of applications in the engineering practice, such as FWD simulation, structure response calculation under vehicle load, dynamic modulus test simulation, et al. You know the currently used calculation methods for FWD are based on static analysis, which completely ignored the impact nature of the load. And I think in the future the dynamic analysis method will definitely be used in the pavement design, pavement detection and laboratory tests.
If you are interested in this program, you can contact me at any time through this email: greatchengsheng@gmail.com.