Results 121 to 130 of about 543,247 (306)

Numerical Ductile Tearing Simulation of Circumferential Cracked Pipe Tests under Dynamic Loading Conditions

Nuclear Engineering and Technology, 2016
This paper presents a numerical method to simulate ductile tearing in cracked components under high strain rates using finite element damage analysis. The strain rate dependence on tensile properties and multiaxial fracture strain is characterized by the
Hyun-Suk Nam, Ji-Soo Kim, Ho-Wan Ryu, Yun-Jae Kim, Jin-Weon Kim   +4 more
doaj   +1 more source

Shear band dynamics from a mesoscopic modeling of plasticity

, 2010
The ubiquitous appearance of regions of localized deformation (shear bands) in different kinds of disordered materials under shear is studied in the context of a mesoscopic model of plasticity.
Bulatov V V, Bulatov V V, Bulatov V V, Duran J, E A Jagla, Falk M L Toiya M Losert W, Mair R, Makhloufi R, Miller M, Russel W B, Scholz C H, Talamali M Petaja V Roux S Vandembroucq D, Weaire D   +12 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Review on Stress-Strain Rate Controllable Loading of Functionally Graded Materials

Gaoya wuli xuebao
Given the dependence that key material dynamic properties in critical fields (e.g., national defense security and high-end manufacturing) have on stress-strain rate-controlled loading.
Chengcheng GUO, Ruizhi ZHANG, Zhiqiang LIU, Zihao HUANG, Jian ZHANG, Guoqiang LUO, Qiang SHEN   +6 more
doaj   +1 more source

Performance of Monolayer Graphene Nanomechanical Resonators with Electrical Readout

, 2009
The enormous stiffness and low density of graphene make it an ideal material for nanoelectromechanical (NEMS) applications. We demonstrate fabrication and electrical readout of monolayer graphene resonators, and test their response to changes in mass and
A Huttel, AB Hutchinson, AC Ferrari, B Lassagne, B Witkamp, BI Yakobson, C Lee, CD Dimitrakopoulos, Changyao Chen, D Garcia-Sanchez, E Stolyarova, F Schedin, HJ Mamin, Horst L. Stormer, HWC Postma, HY Chiu, I Bargatin, I Meric, Ioannis Kymissis, J Atalaya, J Moser, James Hone, JS Bunch, JS Bunch, K Jensen, KI Bolotin, Kirill I. Bolotin, KL Ekinci, KS Novoselov, M Ishigami, MD LaHaye, MY Han, MY Huang, N Mohanty, N Mounet, P Blake, P Mohanty, Philip Kim, RA Suleimanov, RG Knobel, S Evoy, Sami Rosenblatt, SC Jun, TMG Mohiuddin, Tony F. Heinz, V Sazonova, W Bao, William Kalb, YT Yang   +48 more
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +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

Demonstration test of burner liner strain measurements using resistance strain gages [PDF]

, 1984
A demonstration test of burner liner strain measurements using resistance strain gages as well as a feasibility test of an optical speckle technique for strain measurement are presented. The strain gage results are reported.
Anderson, W. L., Grant, H. P.
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Effect of dynamic strain rate on micro-indentation properties of pure aluminum

EPJ Web of Conferences, 2015
Indentation is widely used to investigate the elastic and plastic properties of mechanical materials, which includes the strain rate sensitivity. The indentation exhibits an inhomogeneous strain distribution in contrast to compression and tensile tests ...
Yamada Hiroyuki, Hotta Midori, Kami Tsuyoshi, Ogasawara Nagahisa, Chen Xi   +4 more
doaj   +1 more source