Results 21 to 30 of about 208,229 (308)
, 2023 : Numerical modelling of high-velocity and hyper-velocity impacts at macroscale has attracted much attention, especially due to its wide variety of applications from armored vehicles to reinforced buildings.
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Low velocity impact analysis with nastran [PDF]
Computers & Structures, 1991 A nonlinear elastic force-displacement relationship is used to calculate the transient impact force and local deformation at the point of contact between impactor and target. The nonlinear analysis and transfer function capabilities of NASTRAN are used to define a finite element model that behaves globally linearly elastic, and locally nonlinear ...
D.A. Trowbridge, J.E. Grady, R.A. Aiello
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Frontiers in Mechanical Engineering, 2020 Impact tests are an important tool to analyze dynamic material properties of viscoelastic media in technology and biology. In this context, rigorous contact mechanical models of the collision problem are necessary to adequately interpret data from impact
Emanuel Willert
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Relative impacts of the invasive Pacific oyster, Crassostrea gigas, over the native blue mussel, Mytilus edulis, are mediated by flow velocity and food concentration [PDF]
NeoBiota, 2019 The ecological impacts of invasive species can be severe, but are generally viewed as highly unpredictable. Recent methods combining per capita feeding rates, population abundances and environmental contexts have shown great utility in predicting invader
Patrick W.S. Joyce +2 more
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Robust Identification of Strain Waves due to Low-Velocity Impact with Different Impactor Stiffness
Sensors, 2019 Low-velocity impacts represent a major concern for aeronautical structures, sometimes producing barely detectable damage that could severely hamper the aircraft safety, even with regards to metallic structures.
Alessio Beligni +4 more
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The influence of acrylate triblock copolymer embedded in matrix on composite structures’ responses to low-velocity impacts [PDF]
, 2012 In passive safety structures the use of composite materials has increased significantly recently due to their low specific mass and high energy absorption capacities.
Frédéric Leonardi +7 more
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Effect of ply thickness on damage mechanisms of composite laminates under repeated loading [PDF]
FME Transactions, 2020 Barely visible impact damage (BVID) occurs in composite laminates subjected to low-velocity impact. They can then exhibit significant effect on mechanical performance of laminates.
Ali Hafiz Tauqeer +5 more
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A Systematic Survey of Moon-forming Giant Impacts. I. Nonrotating Bodies
The Astrophysical Journal, 2023 In the leading theory of lunar formation, known as the giant impact hypothesis, a collision between two planet-size objects resulted in a young Earth surrounded by a circumplanetary debris disk from which the Moon later accreted.
Miles Timpe +4 more
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Metals, 2023 Marine structures are frequently subjected to repeated-impact loadings during navigation and operation. The structural damage accumulates, resulting in structural failures and even serious accidents. Experiments were performed using an INSTRON drop tower
Kailing Guo, Mengying Mu, Shuo Zhou
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The influence of toughening-particles in CFRPs on low velocity impact damage resistance performance [PDF]
, 2014 The role of particle-toughening for increasing impact damage resistance in carbon fibre reinforced polymer (CFRP) composites was investigated. Five carbon fibre reinforced systems consisting of four particle-toughened matrices and one system containing ...
D.J. Bull +7 more
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