Densification Behavior of Different Metal Powders by Compression and Shear Combined Loading

Densification behaviour of metal powders at high temperature

investigation of gassing behavior, electric and dielectric properties of different insulating fluids.

ترانسفورماتورهای قدرت از اجزای اصلی شبکه تامین انرژی الکتریکی می باشند که عملکرد قابل اطمینان ترانسفورماتورها یکی از فاکتورهای مهم و تعیین کننده در تامین انرژی الکتریکی محسوب می شود. در نتیجه بررسی و مانیتور عملکرد ترانسفورماتورها در شبکه و همچنین عیب یابی این ترانسفورماتورها غیرقابل اجتناب و ضروری می باشد. به طور کلی عایق های مایع در صنعت فشار قوی کاربردهای متفاوتی دارند که مهمترین وظیفه آنها...

Spark Plasma Sintering of Commercial Zirconium Carbide Powders: Densification Behavior and Mechanical Properties

Commercial zirconium carbide (ZrC) powder is consolidated by Spark Plasma Sintering (SPS). Processing temperatures range from 1650 to 2100 °C. Specimens with various density levels are obtained when performing single-die SPS at different temperatures. Besides the single-die tooling setup, a double-die tooling setup is employed to largely increase the actual applied pressure to achieve higher de...

Lumbar Compression and Shear Loading during Simulated Fireground Operations

Together with 3D kinematics of the lower extremities, pelvis, and lumbar spine, ground reaction forces (GRF) and surface EMG signals from the following bilateral trunk muscle groups were recorded: external and internal abdominal obliques; rectus abdominus; lumbar and thoracic erector spinae; and latissimus dorsi. Kinematic and GRF data were incorporated in a “bottom-up” inverse dynamical linked...

Dynamic Enhancement and Multi-axial Behavior of Honeycombs under Combined Shear- Compression Doctoral Committee

III Abstract: This study aims at the energy absorption problems in the crash of high speed vehicles, bird impact and crashworthiness design of aircraft, and the dynamic enhancement and multi-axial behavior of honeycombs under combined shearcompression are investigated. The study consists mainly of two parts. The first part is related to the dynamic strength enhancement of honeycombs under uniax...