Results 11 to 20 of about 291,405 (288)

Nano-Indentation to Determine Mechanical Properties of Intraocular Lenses: Evaluating Penetration Depth, Material Stiffness, and Elastic Moduli

Ophthalmology and Therapy, 2023
Introduction Intraocular lenses (IOL) should remain in the eye for life after implantation into the capsular bag during cataract surgery. The material must meet various requirements.
Andreas F. Borkenstein, Eva-Maria Borkenstein, Inge Mühlbacher, Michaela Flock   +3 more
doaj   +2 more sources

Study on the Composite Structure of Aluminum Foam-Filled Thin-Walled Metal Tube to Reduce the Charge Overload inside the Projectile during the Penetration Process

Shock and Vibration, 2020
When a projectile penetrates a target at high speed, the charge loaded inside the projectile usually bears a high overload, which will consequently severely affect its performance.
Fudi Liang, Zengyou Liang, Dezhi Deng
doaj   +2 more sources

Modeling of light dynamic cone penetration test – Panda 3 ® in granular material by using 3D Discrete element method

EPJ Web of Conferences, 2017
The recent technological developments made on the light dynamic penetration test Panda 3 ® provide a dynamic load–penetration curve σp – sp for each impact.
Tran Quoc Anh, Chevalier Bastien, Benz Miguel, Breul Pierre, Gourvès Roland   +4 more
doaj   +2 more sources

Mesoscale Equivalent Numerical Study of Ultra-High Performance Concrete Subjected to Projectile Impact

Applied Sciences, 2023
Numerical investigations on the performance of ultra-high performance concrete (UHPC) subjected to projectile impacts have attracted extensive attention, but there are still deficiencies in the accuracy and computational efficiency of related simulation ...
Jian Yang, Jie Ao, Wenzheng Wan, Yikang Liu   +3 more
doaj   +2 more sources

Consideration on a Calculation Method of Force-Penetration Curves in Impact Penetration Tests

Journal of MMIJ, 2015
Kimihiro HASHIBA, Yingzong LIANG, Katsunori FUKUI, Masahiro KOIZUMI, Toshio MATSUDA   +4 more
openaire   +3 more sources

Effect of Confining Pressure on the Macro- and Microscopic Mechanisms of Diorite under Triaxial Unloading Conditions

Buildings
In this study, the response mechanism between macro- and microscales of deep hard-rock diorite is investigated under loading and unloading conditions.
Xiaoxiao Duan, Dengke Yang, Xuexu An
doaj   +2 more sources

INVESTIGATION OF THE ABILITY OF JUTE AND GLASS HYBRIDS ENHANCED TO RESIST PENETRATION BY LOW-VELOCITY IMPACT

Journal of Engineering and Sustainable Development, 2023
The penetration resistance under low-impact loading (at various levels) of jute/ glass fibers reinforced polyvinyl butyral composite materials composed of various types of natural fibers (with various layers sequences and fibers ratios has been studied ...
Mohammed H. Khalaf, Suhad Dawood Salman, Zulkiflle B Leman, Munir Faraj Alkbir, Fatihhi Januddi   +4 more
semanticscholar   +1 more source

ANALYSIS OF THE FORCE INTERACTION OF A DISC KNIFE WITH WOOD IN CHIP-FREE DIVISION

Forestry Engineering Journal, 2023
The interaction of a circular knife with wood is a simple but interesting topic. The article will analyze the interaction of a knife with wood. A program is described that allows determining the preliminary deformation force for various disk shapes ...
V. Ivanovskiy, D. Tomenko, S. Trofimov, A. Kiseleva   +3 more
semanticscholar   +1 more source

Numerical evaluation of the pipe-pile buckling during vibratory driving in sand [PDF]

, 2019
The buckling of steel pipe piles during vibratory driving is numerically studied using the Multi-Material Arbitrary Lagrangian-Eulerian (MMALE) method. This method handles the large soil deformations that occur during pile driving and other geotechnical ...
Aubram, Daniel, Bakroon, Montaser, Daryaei, Reza, Rackwitz, Frank   +3 more
core   +1 more source

Archimedes’ law explains penetration of solids into granular media

Nature Communications, 2018
Understanding the response of granular matter to intrusion of solid objects is key to modelling many aspects of behaviour of granular matter, including plastic flow. Here we report a general model for such a quasistatic process.
Wenting Kang, Yajie Feng, Caishan Liu, R. Blumenfeld   +3 more
semanticscholar   +2 more sources