Results 61 to 70 of about 309,293 (334)

Effects of heating durations on normal concrete residual properties: compressive strength and mass loss

IOP Conference Series: Materials Science and Engineering, 2017
This study investigates the effects of high temperature with five different heating durations on residual properties of 30 MPa normal concrete. Concrete cubes were being heated up to 600°C for 30, 60, 90, 120 and 150 minutes. The temperature will keep constant for 30, 60, 90, 120 and 150 minutes.
Fadzli Mohamed Nazri, Shahiron Shahidan, Nur Khaida Baharuddin, Salmia Beddu, Badorul Hisyam Abu Bakar   +4 more
openaire   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Analysis of the Residual Stress and Deformation of Spiral Bevel Gear Heat Treatment Process based DEDORM Software Finite Element Simulation

Jixie chuandong, 2016
Based on the basic principles of heat transfer and thermal elastic- plastic theory,by using finite element method,the heat treatment analytical model of spiral bevel gear is established.
Wang Yanzhong, Chen Yunlong, Zhang Zuzhi, Chen Yanyan, Liu Yang   +4 more
doaj  

The effect of sludge water treatment plant residuals on the properties of compressed brick

IOP Conference Series: Materials Science and Engineering, 2017
The focus of this study is on the production of compressed bricks which contains sludge water treatment plant (SWTP) residuals obtained from SAJ. The main objective of this study is to utilise and incorporate discarded material (SWTP) in the form of residual solution to produce compressed bricks.
Shamrul-Mar Shamsudin, S. Shahidan, M. A. M. Azmi, S. A. Ghaffar, M. B. Abdul Ghani, N. A. A. Saiful Bahari, S. S. M. Zuki   +6 more
openaire   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

A Theoretically Guaranteed Deep Optimization Framework for Robust Compressive Sensing MRI

, 2018
Magnetic Resonance Imaging (MRI) is one of the most dynamic and safe imaging techniques available for clinical applications. However, the rather slow speed of MRI acquisitions limits the patient throughput and potential indi cations. Compressive Sensing (
Cheng, Shichao, Fan, Xin, Liu, Risheng, Luo, Zhongxuan, Zhang, Yuxi   +4 more
core   +1 more source

Color and Material Property Changes in Concrete Exposed to High Temperatures

, 2009
When a concrete structure is exposed to heat such as a fire, its material properties, such as weight, compressive strength and elasticity, are degraded. The exposure also accompanies cracking, spalling and color changes.
Joongwon Lee, K. Choi, Kappyo Hong
semanticscholar   +1 more source

Residual Compressive Strength Prediction Model for Concrete Subject to High Temperatures Using Ultrasonic Pulse Velocity

Materials, 2023
This study measured and analyzed the mechanical properties of normal aggregate concrete (NC) and lightweight aggregate concrete (LC) subjected to high temperatures. The target temperature was set to 100, 200, 300, 500, and 700 °C, and W/C was set to 0.41,
Wonchang Kim, Hyeonggil Choi, Taegyu Lee
semanticscholar   +1 more source

Understanding the Effect of Resistance Temperature Detector Temperature Controllers on Microstructural Alignment in Magnetic Freeze Casting

Advanced Engineering Materials, EarlyView.
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley   +1 more source

Determination of surface mechanical property and residual stress stability for shot-peened SAF2507 duplex stainless steel by in situ X-ray diffraction stress analysis

Journal of Materials Research and Technology, 2020
In this study, SAF2507 duplex (austenite–ferrite) stainless steel was processed by shot peening. The depth–profile variations of the stress state and work hardening in the shot-peened layer were investigated by X-ray diffraction and microhardness tests ...
Ming Chen, Shilong Xing, Huabing Liu, Chuanhai Jiang, Ke Zhan, Vincent Ji   +5 more
doaj   +1 more source