Results 91 to 100 of about 347,005 (294)

The Measurement of the Bulk Modulus Loss Factor of Small Solid Specimens [PDF]

The Journal of the Acoustical Society of America, 1972
The bulk modulus loss factor of small, relatively loss-free solid specimens is one of the most elusive elastic constants to measure, as it is essential that the losses in the apparatus be reduced below those of the sample. One technique uses the change in decay time when the sample is introduced into a resonant body of liquid.
openaire   +1 more source

Identification of Loss Factor of Fiber-Reinforced Composite Based on Complex Modulus Method [PDF]

Shock and Vibration, 2017
The identification of the loss factor of fiber-reinforced composite based on complex modulus method is presented. Firstly, the damping model of fiber-reinforced composite plate is established, and the relation between each loss factor and modal damping ratio is deduced based on the complex modulus method.
Hui Li, Yi Niu, Chao Mu, Bangchun Wen
openaire   +2 more sources

Dielectric and conductivity relaxation in mixtures of glycerol with LiCl

, 2008
We report a thorough dielectric characterization of the alpha relaxation of glass forming glycerol with varying additions of LiCl. Nine salt concentrations from 0.1 - 20 mol% are investigated in a frequency range of 20 Hz - 3 GHz and analyzed in the ...
A. Brodin, A. Hammadi, A. Hammadi, A. Loidl, A. Pimenov, A. Rivera, C.T. Moynihan, D.W. Davidson, F.E. Harris, F.S. Howell, For some recent reviews on the physics of glass-forming materials, see, G.P. Johari, G.P. Johari, H. Sillescu, H. Vogel, However, some deviations of relaxation times from different methods were reported in, K. Nörtemann, K. Pathmanathan, M. Köhler, M.A. Floriano, M.A. Miller, M.A. Ramos, N.B. Olsen, N.O. Birge, P. Debye, P. Debye, P. Lunkenheimer, P. Lunkenheimer, P. Lunkenheimer, P. Lunkenheimer, P. Lunkenheimer, P. Lunkenheimer, P. Lunkenheimer, P. Lunkenheimer, P.B. Macedo, R. Böhmer, R. Richert, R. Schilling, S. Havriliak, U. Schneider, W. Götze   +40 more
core   +1 more source

A new method to predict optimum cure time of rubber compound using dynamic mechanical analysis [PDF]

, 2013
The degree of vulcanization of a rubber compound has a big influence on the properties of the final product. Therefore, precisely defining the curing process including optimum cure time is important to ensure the production of final products having high ...
Aggarwal, ASTM-D2084, Standard, Ciesielski, Deniz, Deniz, Gatos, Hoffman, Jaunich, Leblanc, Menard, Mezger, Simpson, Stark, Tsang, Wang, Xie   +15 more
core   +2 more sources

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Mechanical Properties of a “5+4” Viscoelastic Damping Wall Based on Full-Scale Laboratory Tests

Shock and Vibration, 2016
This paper presented temperature scanning tests of the viscoelastic materials firstly. The temperature scanning tests were carried out by a Rheogel-E4000DMA analyzer and the results showed the modulus and loss factor of viscoelastic damping material ...
Junhong Xu, Aiqun Li
doaj   +1 more source

Dynamic Hardness Tester and Cure Meter [PDF]

, 1993
The Shore hardness tester is used extensively throughout industry to determine the static modulus of materials. The new apparatus described here extends the capability of an indentor-type tester into the dynamic regime, and provides a measurement of the ...
Fiorito, Ralph B., Madigosky, Walter M.
core   +1 more source

Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories

Advanced Engineering Materials, EarlyView.
A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi, Stephan Roth, Christos G. Aneziris, Bjoern Kiefer   +3 more
wiley   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Effects of Sasobit® content on the rheological characteristics of unaged and aged asphalt binders at high and intermediate temperatures

Materials Research, 2012
This paper describes the rheological properties of PG64, PG70, and PG76 asphalt binders blended with different Sasobit® contents. The rheological properties of the Sasobit®-modified binders were characterized after being subjected to different aging ...
Ali Jamshidi, Meor Othman Hamzah, Mohamad Yusri Aman   +2 more
doaj