Impact Mechanics
Impact Mechanics - Related Videos
02:44
Impact Indentation for Assessing the Mechanical Properties of a Mouse Brain Tissue
0 Views •
2025
Source: Canovic, E. P., et. al., Characterizing Multiscale Mechanical Properties of Brain Tissue Using Atomic Force Microscopy, Impact Indentation, and Rheometry. J. Vis. Exp. (2016)The video demonstrates using impact indentation to measure the mechanical properties of a hydrated mouse brain tissue, including stiffness, energy dissipation, and damping, through probe displacement and velocity analysis.
11:19
Characterizing Multiscale Mechanical Properties of Brain Tissue Using Atomic Force Microscopy, Impact Indentation, and Rheometry
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Cited by 36 •
2016
We present a set of techniques to characterize the viscoelastic mechanical properties of brain at the micro-, meso-, and macro-scales.
08:34
Visualization of High Speed Liquid Jet Impaction on a Moving Surface
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Cited by 4 •
2015
Two experimental devices for examining liquid jet impingement on a high-speed moving surface are described: an air cannon device and a spinning disk device. The apparatuses are used to determine optimal approaches to the application of liquid friction modifier (LFM) onto rail tracks for top-of-rail friction control.
01:19
Impact of Groups on Groups
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2025
Social psychologists analyze how groups influence one another, shaping social structures and interactions through both cooperation and competition. These dynamics manifest in various ways, ranging from economic partnerships to intergroup conflicts that shape societal structures and perceptions.Cooperation and Competition in Intergroup RelationsIntergroup relationships vary across contexts, sometimes fostering cooperation and mutual benefit while at other times leading to conflict and...
01:30
Impact
0 Views •
2024
Impact occurs when two bodies collide, leading to the application of impulsive forces between them. Analyzing impact mechanics involves considering two colliding particles moving along a line known as the line of impact, which passes through their centers and is perpendicular to the contact plane. When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
FAQs
During impact, momentum passes between the contacting bodies through a force that acts over a short time. The resulting force history influences how quickly deformation develops and how stresses move through the structure. Examining this transfer helps engineers assess whether the interaction produces substantial deformation, damage, penetration, or rebound.
Stress waves carry the effects of a collision through a material or structure rather than allowing the entire system to respond simultaneously. Their propagation influences where stresses and deformation develop during the brief loading event. Accounting for this behavior is important when predicting localized damage and the structural response to high-rate loading.
The rate at which a material deforms can affect its response during an impact. Because loading occurs rapidly, strain-rate effects must be considered alongside deformation and stress-wave propagation. Including this factor improves predictions of how materials and structures absorb energy, sustain damage, or resist penetration under sudden dynamic loads.
An analysis typically considers the short-duration contact force, momentum transfer, deformation, stress-wave propagation, strain-rate effects, and energy absorption. Together, these quantities describe how the impacting body and target structure respond. Their combined interpretation supports predictions of damage, fracture, penetration, and rebound rather than relying on a single measured response.
Impact Mechanics supports the design and evaluation of vehicle crash structures, protective equipment, aerospace components, and industrial machinery. In each case, engineers examine how the system responds to accidental or deliberately applied dynamic loads. The resulting analysis can guide safer structural designs and help establish reliable performance under collision conditions.
Impact analysis connects material behavior with structural outcomes such as deformation, fracture, penetration, and energy absorption. Engineers can use these relationships to compare how material and structural choices influence performance during sudden loading. This evidence supports improved material selection, safer designs, and more reliable operation of components exposed to collisions.