Results 21 to 30 of about 963,853 (358)

Delamination Effect on the Buckling Behaviour of Carbon–Epoxy Composite Typical Aeronautical Panels

open access: yesApplied Sciences, 2023
The instability of structures due to compression is one of the most critical issues related to aircraft components. Especially in composite materials, which have poor out-of-plane mechanical properties, the buckling load must be assessed to ensure that ...
Aniello Riccio   +3 more
doaj   +1 more source

Failure analysis of CFRP laminates subjected to Compression After Impact: FE simulation using discrete interface elements [PDF]

open access: yes, 2013
This paper presents a model for the numerical simulation of impact damage, permanent indentation and compression after impact (CAI) in CFRP laminates.
Bouvet, Christophe   +2 more
core   +3 more sources

Impact-induced bonding process of copper at low velocity and room temperature

open access: yesMaterials & Design, 2023
The impact-induced bonding can be foundation of fast solid-state additive manufacturing. The mechanisms behind impact-induced bonding have not been widely acknowledged due to complexity caused by too transient process and extreme loading conditions.
Cong Chen   +8 more
doaj   +1 more source

Post-Impact Compression Behavior of Natural Flax Fiber Composites

open access: yesJournal of Natural Fibers, 2020
This study investigated the damage tolerance and damage evolution of the compressive failure of a non-woven flax composite using compression after impact (CAI) tests.
Mohamed Habibi   +4 more
doaj   +1 more source

Low velocity impact response and post impact compression behavior of BMI matrix composites

open access: yesCailiao gongcheng, 2022
A novel kind of lattice-distributed ESTM-fabrics was developed by using polyethersulfone(PES) and U3160.The loading amounts of PES on ESTM-fabrics are 15 g/cm2(ES-15), 25 g/cm2(ES-25), 35 g/cm2(ES-35), respectively.
DONG Huimin   +4 more
doaj   +1 more source

Low velocity impact analysis with nastran [PDF]

open access: yesComputers & 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
openaire   +1 more source

Low-velocity impact of pressurised pipelines

open access: yesInternational Journal of Impact Engineering, 2010
Experimental tests are reported on steel pipelines which have been struck by a relatively large rigid wedge-shaped mass travelling up to 10.4m/s. A pipeline is supported across a span, is fully clamped at both ends and is struck at the mid-span and at the one quarter span positions. Most of the pipelines are pressurised with a nitrogen gas. The initial
Jones, Norman, Birch, R.S.
openaire   +2 more sources

Velocity equation for grenades while impacting on dry sand media

open access: yesDefence Technology
This paper deals with the collision of sphere shape grenades with sand media. The central issue of the article is the establishing of an empirical velocity equation of the grenade while impacting on sand that is used to solve motion equations of the ...
Martin Macko   +6 more
doaj   +1 more source

Palliatives for Low Velocity Impact Damage in Composite Laminates

open access: yesAdvances in Materials Science and Engineering, 2017
Fibre reinforced polymer laminated composites are susceptible to impact damage during manufacture, normal operation, maintenance, and/or other stages of their life cycle.
Mubarak Ali   +2 more
doaj   +1 more source

Low-Velocity Impact Resistance of Double-Layer Folded Sandwich Structure

open access: yesMachines, 2022
The folded sandwich structure might inevitably be impacted at low velocity when it is working, which will lead to the decline of the mechanical properties.
Yuechen Duan   +5 more
doaj   +1 more source

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