This paper reports dependency of specific heat and ballistic thermal conductance on cross-sectional geometry (tube versus rod) and size (i.e., diameter and wall thickness), in free-standing isotropic non-metallic crystalline nanostructures. The analysis is performed using dispersion relations found by numerically solving the Pochhammer-Chree frequency equation for a tube. Estimates for the allo...

Lattice structures and thin-walled tubes are two types of energy-absorbers widely studied applied in engineering practice. In this study, a new type lattice-structure filled tube (LFT) was proposed by combining these energy absorbers designed via explainable data mining method. LFT, BCC-Z (Body- centred cubic unit cell with vertical struts) lattice structure into square tube. Then, the LFT para...

Tube systems are widely used in heat transfer and intensive research is being done on positioning tubes a platform. The platform structure constantly exposed to thermal changes under operating conditions the resulting stresses cause damage existing systems. In this study, 8 thin-walled were positioned flat curved platforms that stress behavior effects was investigated. Finite element analysis u...

This paper evaluates three critical plane criteria, namely the Findley, Matake and modified Wöhler curve method compares them to IIW’s implementation of Gough–Pollard criteria. Assessment is conducted on a large set fatigue data thin-walled tube–tube laser beam welded specimens made magnesium aluminum alloys that were tested under proportional/non-proportional constant/variable amplitude loadin...