Results 41 to 50 of about 495,690 (305)

Experimental and Numerical Investigation of Strain Rate Dependent Flow and Fracture Behavior of 6181A-T4 Alloy Using the Johnson–Cook Model

Crystals
The use of aluminum alloys for lightweighting in the automotive industry is becoming widespread. In this study, Johnson–Cook plasticity and damage model parameters were determined to predict the plasticity and damage behavior of 6181A-T4 sheet material ...
Ecenur Öztürk, Onur Cavusoglu, Ahmet Güral   +2 more
doaj   +1 more source

Impact Dynamic Response of Spherical Net Shells: Finite Element-Based Computational Analysis Investigating the Influence of Dynamic Constitutive Models

Buildings, 2023
The net shell is a widely utilized large-span space structure known for its aesthetically pleasing design and uniform load distribution, as well as serving as a prominent architectural landmark. In recent years, the impact resistance research of mesh and
Yuhang Shen, Li Lin, Pengxiao Tang, Tianli Xu   +3 more
doaj   +1 more source

Experimental analysis and modeling of orthogonal cutting using material and friction models [PDF]

, 2007
In this study, a process model for orthogonal cutting processes is proposed. The model involves the primary and secondary deformation zones. The primary shear zone is modeled by a Johnson-Cook constitutive relationship and a shear plane having constant ...
Budak, Erhan, Ozlu, Emre, Özlü, Emre
core  

Transient Numerical Models of Metal Cutting using the Johnson-Cook's Rupture Criterion [PDF]

International Journal of Forming Processes, 2002
This paper presents two-dimensional and three-dimensional transient numerical models of metal cutting. The simulations concern the study of the unsteady process of chip formation. These finite element models take into account dynamic effects, thermo-mechanical coupling with a rupture criterion and contact with friction.
Bacaria, Jean-Louis, Dalverny, Olivier, Pantalé, Olivier, Rakotomalala, Roger   +3 more
openaire   +3 more sources

One size does not fit all: An in vitro evaluation of the effects of bezafibrate and medroxyprogesterone acetate on human SH‐SY5Y and U‐87 MG cancer cells

FEBS Open Bio, EarlyView.
Drugs previously repurposed to target blood cancers reduced neuroblastoma and glioblastoma cell growth and viability. However, their levels of anticancer activity were different and their clinical application may be problematic due to side effects at effective doses.
Abhishek Kharawatkar, Francesco Michelangeli, Farhat Latif Khanim, Christopher Martin Bunce, William Eustace Basil Johnson   +4 more
wiley   +1 more source

3D Finite Element Simulation of Micro End-Milling by Considering the Effect of Tool Run-Out [PDF]

, 2017
Understanding the micro milling phenomena involved in the process is critical and difficult through physical experiments. This study presents a 3D finite element modeling (3D FEM) approach for the micro end-milling process on Al6082-T6.
Annoni, Massimiliano, Davoudinejad, Ali, Parenti, Paolo, Tosello, Guido   +3 more
core   +2 more sources

Tracking Motor Progression and Device‐Aided Therapy Eligibility in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterise the progression of motor symptoms and identify eligibility for device‐aided therapies in Parkinson's disease, using both the 5‐2‐1 criteria and a refined clinical definition, while examining differences across genetic subgroups.
David Ledingham, Sahana Sathyanarayana, Charlotte B. Stewart, Robyn Iredale, Victoria Foster, Debra Galley, Mark Baker, Nicola Pavese   +7 more
wiley   +1 more source

Modeling of temperature distribution in orthogonal cutting with dual-zone contact at rake face [PDF]

, 2012
In this study, an analytical model is developed in order to calculate the temperature distribution in orthogonal cutting with dual-zone contact at the rake face. The study focuses on heat generation at the primary shear zone and at the rake face.
Bakkal, Mustafa, Budak, Erhan, Cakir, Esin, Ozlu, Emre, Çakır, Esin, Özlü, Emre   +5 more
core   +1 more source

Developmental, Neuroanatomical and Cellular Expression of Genes Causing Dystonia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Dystonia is one of the most common movement disorders, with variants in multiple genes identified as causative. However, an understanding of which developmental stages, brain regions, and cell types are most relevant is crucial for developing relevant disease models and therapeutics.
Darren Cameron, Nicholas E. Clifton, Daniel Cabezas de la Fuente, Peter Holmans, Nicholas J. Bray, Kathryn J. Peall   +5 more
wiley   +1 more source

Fragmentation of armor piercing steel projectiles upon oblique perforation of steel plates

EPJ Web of Conferences, 2012
In this study, a constitutive strength and failure model for a steel core of a14.5 mm API projectile was developed. Dynamic response of a projectile steel core was described by the Johnson-Cook constitutive model combined with principal tensile stress ...
Aizik F., Ran E., Vizel A., Weiss A., Paris V.   +4 more
doaj   +1 more source