Results 1 to 10 of about 78,366 (275)
Polyimide aerogels for ballistic impact protection [PDF]
Scientific Reports, 2022 The ballistic performance of edge-clamped monolithic polyimide aerogel blocks (12 mm thickness) has been studied through a series of impact tests using a helium-filled gas gun connected to a vacuum chamber and a spherical steel projectile (approximately ...
Sadeq Malakooti +9 more
doaj +4 more sources
A machine learning model for predicting the ballistic impact resistance of unidirectional fiber-reinforced composite plate [PDF]
Scientific Reports, 2021 It has been a vital issue to ensure both the accuracy and efficiency of computational models for analyzing the ballistic impact response of fiber-reinforced composite plates (FRCP). In this paper, a machine learning (ML) model is established in an effort
X. D. Lei +5 more
doaj +2 more sources
Myocardial Contusion Due to Ballistic Impact Force. [PDF]
JACC Case RepBACKGROUND: Myocardial contusion typically occurs from blunt cardiac trauma often due to motor vehicle collisions and falls from a significant height. Gunshot wounds may cause compression and stretching of tissue from the sonic pressure waves that precedes the bullet.
Iqbal SB +4 more
europepmc +2 more sources
Ballistic impact on concrete slabs: An experimental and numerical study [PDF]
EPJ Web of Conferences, 2021 The ballistic perforation resistance of 50 mm thick concrete slabs impacted by 20 mm diameter ogive-nose steel projectiles is investigated experimentally and numerically. Three commercially produced concretes with nominal unconfined compressive strengths
Kristoffersen Martin +3 more
doaj +1 more source
Alumina and low density polyethylene composite for ballistics applications
Journal of Materials Research and Technology, 2021 The efficiency of alumina and low-density polyethylene (LDPE) composites in ballistic applications was investigated. Different concentrations of alumina were studied, 70, 75, 80, 85, 90 wt.%. The ballistic tests were carried out at subsonic speed using a
Marcio Jardim Oliveira +3 more
doaj +1 more source
Response to Ballistic Impact of Alumina-UHMWPE Composites [PDF]
Materials Research, 2018 The response to ballistic impact of alumina-ultra high molecular weight polyethylene (UHMWPE) composites with different relative concentrations of alumina was investigated. The impact tests were carried out at subsonic speed using a compressed air system.
André Ben-Hur da Silva Figueiredo +5 more
doaj +2 more sources
PNEUMATIC-BALLISTIC IMPACT DEVICE [PDF]
Experimental Techniques, 1987 Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/72123/1/j.1747-1567.1987.tb00669.x ...
Nusholtz, Guy S. +3 more
openaire +2 more sources
Metals, 2023 An internal state variable (ISV)-based constitutive model has been used within a Lagrangian finite element analysis (FEA) framework to simulate ballistic impact of monolithic rolled homogenous armor (RHA) steel plates by RHA steel spheres and cylinders ...
Luke Peterson +3 more
doaj +1 more source
Combining protective clothes with human body models for finite element ballistic impact simulations
Communications in Development and Assembling of Textile Products, 2023 The ballistic deformation of an ultra-high-molecular-weight (UHMW) polyethylene (PE) composite has been subjected numerically to a multi-layered soft ballistic fabric package modelled upon the body contours of the Global Human Body Models Consortium ...
Matthias Boljen +3 more
doaj +7 more sources
Post deformation analysis of the ballistic impacted magnesium alloys, a short-review
Journal of Magnesium and Alloys, 2021 From the mechanistic point of view, magnesium alloys are lightweight materials and are receiving increasing attention in the past several years in various fields. Prof.
Abdul Malik +4 more
doaj +1 more source