Puneeth Jakkula

Investigating the dynamic behavior of materials using novel measuring principles like Split-Hopkinson methods to achieve fast loading rates in combination with fast infrared temperature measurements. Aiming to separate adiabatic heating effects, a.k.a thermal softening, from strain-rate dependent stiffening in polymers.

Quasi-static and dynamic tension experiments of additively manufactured (AM) Al-Mg-Sc alloy Scalmalloy, Cast Aluminium and Ti64 are being investigated using High-speed synchrotron X-ray imaging coupled with a in-situ Split-Hopkinson Tension bar and in-situ Quasi-static testing device. The failure mechanisms were realized under ultra-fast X-Rays radiography captured by two High-speed cameras at 1 million FPS on each with inter-laying frames.

Quasi.-static and dynamic tension experiments of additively manufactured (AM) Al-Mg-Sc alloy Sacalmalloy are being investigated using High-speed synchrotron X-ray imaging coupled with a modified Split-Hopkinson Tension bar and in-house QS testing device. The fast failure mechanisms were realized under ultra-fast X-Rays radiography captured by a High-speed camera at 2 million FPS.

Automotive material testing and characterization using Split-Hopkinson Tension Bar. Design, manufacturing, and simulation of a new setup called Direct-Impact Tension Bar for achieving longer pulse duration.

DOI: 10.6084/m9.figshare.8218106.v1

Dynamic simulation and characterization of flax fiber materials using DFT methods.

Worked on the design and manufacturing of steam turbines and heat ex-changers.