Inequalities in thermomechanical properties of materials at interfaces of a modern package lead to a rise in periodic stresses during normal operation, making these sites crucial to the integrity of the entire product. Proper lifetime analysis for highly miniaturized interconnects is a real challenge. In addition, broad application of 100% quality standards in various industries has caused a ra...

The purpose of this article is to present mechanical and physicochemical properties during in vitro degradation of PLGA material as craniofacial plates based on different values of injection molded temperatures. Injection molded plates were submitted to in vitro degradation in a thermostat bath at 37 ± 1°C by 16 weeks. The material was removed after 15, 30, 60, and 120 days; then bending stiffn...

The near eutectic 60%-40Pb alloy is the most commonly used solder for electrical interconnections in electronic packages. This alloy has a number of processing advantages (suitable melting point of 183°C and good wetting behavior). However, under conditions of cyclic strain and temperature (thermomechanical fatigue), the microstructure of this alloy undergoes a heterogeneous coarsening and fail...

In this paper, a real-world test problem is presented and made available for use by the EMO community. The problem deals with the optimization of polymer extrusion, in terms of setting the operating conditions and/or the screw geometry. The binary code of a computer program that predicts the thermomechanical experience of a polymer inside the machine, as a function of geometry, polymer properti...

Understanding the temperature-dependent nanofluidic transport behavior is critical for developing thermomechanical nanodevices. By using non-equilibrium molecular dynamics simulations, the thermally responsive transport resistance of liquids in model carbon nanotubes is explored as a function of the nanopore size, the transport rate, and the liquid properties. Both the effective shear stress an...

Low thermal conductivity and high thermal stability are desirable for the materials due to their characteristic roles in ablation resistance applications (e.g., reentry parts and renewable rocket nozzles) [1]. Ablation is defined as an erosive phenomenon with a removal of material by a combination of thermomechanical, thermochemical and thermophysical factors due to the high temperature, pressu...

This paper describes coherent gradient sensing (CGS) as an optical, full-field, real-time, nonintrusive, noncontact technique for measurement of curvature and curvature changes in single-layered and multilayered thin films deposited on substrates. The sensitivity of the basic CGS technique is enhanced using optical fringe multiplication to map curvature in very flat specimens (κ ≤ 0.001 m−1). S...

The possibility of using peroxyborates, produced in situ by combining aqueous alkaline hydrogen peroxide and borax, for bleaching and brightness reversion inhibition of thermomechanical pulp was investigated. The peroxyborate material was applied to BTMP paper produced in the laboratory, and from a pilot scale paper making trial. Excellent brightness retention characteristics were exhibited in ...

This paper presents a study of new two-dimensional composite structures with respect to their thermomechanical properties. The investigated structures are based on very well-known auxetic geometries-i.e., the anti-tetrachiral and re-entrant honeycomb-modified by additional linking elements, material which is highly sensitive to changes of temperature. The study shows that temperature can be use...

Objective(s): NiTi is known as the most important material for manufacturing implants and medical devises duo to its shape memory and superelasticity properties, high energy damping, and high corrosion resistance. Methods: In this project, the possibility of producing nanostructured NiTi implant with high porosity was investigated. For reaching to the nan...