Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The elasto-viscoplastic constitutive equation based on the concept of continuum damage mechanics was formulated for the niobium alloy (C103) which was used as a thruster chamber material in a satellite. Fatigue life analysis based on damage mechanics was conducted to simulate the experimental data obtained by the stra…
Hobbing is an efficient method to manufacture high quality gear. It is difficult to understand the hobbing mechanism. So there were some researches of hob cutter wear using a flytool. However in these researches, V shape grove were produced which is not an actual gear shape. In this study, new experimental method is p…
2 2 shifted-force Morse (r) b/ s (: b:
To evaluate effects of wall friction coefficients in a one-dimensional model on prediction of countercurrent flow limitation (CCFL), sensitivity computations were done for hot leg models (ratio of length to diameter, L/D = 8.6) and a pressurizer surge line model without elbows (L/D) = 63) and computed results were com…
This paper demonstrates the moisture measurement on the surface of the skin by a handy-type electrostatic sensor. The electrostatic sensor consists of the thin copper and polyimide films and measures the voltage generated by which the sensor is contacted and released the skin. The moisture condition of the skin is obt…
Thin polyimide (PI) films have been widely used for spacecraft polymeric materials. However, small defects often initiate at the surface of PI films by the erosion of atomic oxygen present in space environment, especially in low earth orbit. Mechanical strengths of polyimide films are significantly reduced by these de…
Parcialni atomove naboje jsou realna cisla přislusejici jednotlivým atomům v molekule a popisujici distribuci elektronove hustoty v dane molekule. Naboje nelze urcit experimentalně, a proto bylo vyvinuto mnoho metod pro jejich výpocet. Tyto metody lze rozdělit do dvou skupin. Prvni skupina zahrnuje kvantově-mechanicke…
Recently self-healing materials are desired from the various applications. Since replying the desires, the self-healing researchers are required to organize the collaborating research group between universities, industry and national government. For the final goal, it is required to raise the name recognition of this…
In this work, an evaluation method of the interfacial strength in thermal spray coating systems by means of an instrumented indentation machine is proposed. Based on the experimental formula for the fracture toughness of monolithic ceramics, we proposed an equation to express the apparent interfacial fracture toughnes…
Cemented carbide is typically used as material for working tool because it has superior characteristics, such as very high Young's modulus, excellent rigidity, good chemical inertness, and good thermal stability. This research focuses on investigating the possibility of WC-Co cemented carbide as structural material in…
時間分割型並列有限要素法の実機解析における有効性検証を目的として,並列化時間周期有限要素法と並列化TP-EEC法の特徴を整理し,PWMインバータ駆動IPMモータを対象としてその得失比較を行う.
Bioactive Ti alloy for implant application has been developed by producing thin hydroxyl-apatite (HAp) film on its surface. The interfacial strength between the base metal and the HAp film has to be evaluated to ensure the reliability of the implant. But the method of evaluation is not yet established because of its d…
In previous report, we observed the motion of an 1.8uL air bubble in 6.0wt%CMC aqueous solution under pressure-oscillating field. The bubble exhibited an elliptical shape flattened in the vertical direction under strong pressure-oscillation. In this study, we report the effect of the condition of pressure-oscillation…
Micro explosion experiments are carried out because it's important on the side of elucidation of phenomena and the side of atomization of fuel in engine. That discussion needs to be done with small droplet because injector's sauter's mean diameter becoming smaller and smaller. For example 50μm for gasoline engine. We…
The Japan Soclety of Mechanlcal Englneers 2F35
Ti-29Nb-l3Ta-4.6Zr alloy (TNTZ) is expected to be used as biomedical applications such as a spinal fixation device. For a practical application, high durability of the spinal fixation device is required in order to ensure mechanical safety. The durability of the spinal fixation device with a rod made of TNTZ subjected…
The aim of this work is to get rid of agricultural, paper wastes which consider a big environmental problem and their utilization in the production of economic products of some special applications. The use of paper-pulp packaging has become more attractive than traditional materials. In our work the mechanical and ph…
Slime-type type robot is a one of prototypes of molecular robots investigated in the molecular robotics project (Grant-in-Aid for Innovative Areas: Molecular Robotics). They are made of gel medium containing various molecules with functions of computing, sensing and actuating. Here we propose some possible implementat…
To clarify the effect of density of entanglement points of molecular chains on mechanical behavior of PEM, we at first employ molecular dynamic (MD) method to constitute the computational models for PEM with different density of entanglement points of molecular chains. And then, MD simulation for Nafion membrane under…
Drvo je specifičan materijal po načinu nastajanja i svojoj prirodi, što zahtjeva kontinuirano upoznavanje njegovih karakteristika. U ovom radu pozornost je posvećena nekim vrstama drvnih materijala, ponajprije onima koji se često koriste kao konstrukcijski materijali. Trenutno postoji veliki broj dostupnih prirodnih m…