Results 61 to 70 of about 1,276 (165)

The Effects of Hygrothermal Aging on the Impact Penetration Resistance of Triaxially Braided Composites [PDF]

open access: yes
An experimental study was conducted to measure the effects of long term hygrothermal aging on the impact penetration resistance of triaxially braided polymer composites.
Kohlman, Lee W.   +5 more
core   +1 more source

Effects of Moisture Absorption on the Mechanical and Fatigue Properties of Natural Fiber Composites: A Review. [PDF]

open access: yesPolymers (Basel)
This review critically examines the effects of moisture absorption on the mechanical and fatigue properties of natural fiber composites (NFCs), with a focus on tensile strength, elastic modulus, and long-term durability.
Pavlovic A, Valzania L, Minak G.
europepmc   +3 more sources

Second Generation Integrated Composite Analyzer (ICAN) Computer Code [PDF]

open access: yes
This manual updates the original 1986 NASA TP-2515, Integrated Composite Analyzer (ICAN) Users and Programmers Manual. The various enhancements and newly added features are described to enable the user to prepare the appropriate input data to run this ...
Ginty, Carol A.   +2 more
core   +1 more source

Deformation and Damage Studies for Advanced Structural Materials [PDF]

open access: yes
Advancements made in understanding deformation and damage of advanced structural materials have enabled the development of new technologies including the attainment of a nationally significant NASA Level 1 Milestone and the provision of expertise to the ...

core   +1 more source

Accelerated Aging of Adhesively Bonded Composite Joints for use in Material Screening and Selection During Development: A Review and Case Study [PDF]

open access: yes, 2022
Adhesively bonded structures are used in many high-tech industries such as aerospace, automotive, and defense. The application of these joints using composite adherends has increased in recent years because of improved strength-to-weight ratio, design ...
Flanigan, Marie Danielle
core   +1 more source

Weibull Probabilistic Model of Moisture Concentration Build Up in a Fiber Graphite/Epoxy Polymer Composite under Varying Hydrothermal Conditions [PDF]

open access: yes, 2020
Advanced mechanical and structural applications require accurate assessment and better knowledge of the damage state during elaboration and service.
Abdelkader, Lousdad   +2 more
core   +1 more source

An Assessment of Mechanical Behavior on High Temperature and Different Volume Fraction of Glass Fiber Reinforced Polymer Composites [PDF]

open access: yes, 2013
Fiber reinforced polymer (FRP) composite materials are the primary choice in various structural and high performance application facilitating the need from the last four decades.
Shekhar, Raj, Tulip, Sudhanshu Sekhar
core  

Effect of repeated salt fog-dry cycles on the performances reversibility of flax fiber reinforced composites [PDF]

open access: yes
This paper aims to evaluate the effectiveness of flax fiber reinforced epoxy composites (FFRCs) under realistic environmental conditions, contributing to the development of sustainable composite materials for semi-structural outdoor applications.
Calabrese L.   +4 more
core   +1 more source

Research and technology highlights of the Lewis Research Center [PDF]

open access: yes
Highlights of research accomplishments of the Lewis Research Center for fiscal year 1984 are presented. The report is divided into four major sections covering aeronautics, space communications, space technology, and materials and structures.

core   +1 more source

Effect of alternating humidity and dryness on the durability of adsorbent sheets used in open cycle adsorption processes [PDF]

open access: yes
Silica gel based composite materials are considered as promising materials in open-cycle adsorption processes for water vapor adsorption/desorption. However, their long-term performance under fluctuating humidity conditions remains unclear.
Calabrese, Luigi   +6 more
core   +1 more source

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