This paper proposed a new type of unbonded areas which are preset in diffusion bonding titanium alloy laminates (DB-TAL). A group DB-TAL specimens with symmetric striped were prepared, and the fatigue experiments under tension–tension cyclic loading conducted. The crack growth behavior was studied from fracture surface. results show that this kind area can toughen based on mechanism. For toughe...

By analyzing different resistance values, this collector of this article collects signal of the Unbonded Elastic Wire Resistance Type Sensor (UEWRTS in brief) acquisition embedded in the dams, reservoirs and other hydraulic buildings, and monitors the facilities in real time view. The position of embedded sensors can be distinguished by setting the address and code. The analog signal is one-on-...

The microscopic structure of liquid methanol has been systematically investigated with Raman spectroscopy in a temperature range of 15-55 degrees C. The unbonded free -OH stretching vibrational band has been observed at approximately 3660 cm(-1) in pure liquid. With the aid of depolarization measurements and theoretical calculations, four featured spectral components have been unambiguously ide...

Descriptions of the healing and adaptation of endosseous implants have been provided; however, their effects on mechanical parameters such as maximum and minimum principal strains, strain energy density, and maximum shear strain have not been addressed. Three linear, elastic, and partially anisotropic finite element models were generated to simulate the immediate postoperative period, time of p...

We have employed ab initio techniques to study the structure and dynamics of voids in amorphous Si and hydrogenated amorphous silicon. Reconstruction effects at void surfaces and dynamical effects associated with H are particularly emphasized. We introduce unbonded H into the network, track its diffusive motion, and note a strong tendency for H to attack strained structures in the network. We c...