scholarly journals Effects of Cover Plate Stiffness on Load Distribution of Bearing-Type Multi-Row Bolted Connections for FRP Composite Structures

2015 ◽  
Vol 64 (7) ◽  
pp. 585-590 ◽  
Author(s):  
Mohammad Abdul KADER ◽  
Yasuo KITANE ◽  
Yoshito ITOH
Keyword(s):  
Load Distribution ◽  
Composite Structures ◽  
Cover Plate ◽  
Bolted Connections ◽  
Frp Composite

scholarly journals An Energy-Based Concept for Yielding of Multidirectional FRP Composite Structures Using a Mesoscale Lamina Damage Model

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 157 ◽  
Author(s):  
Seyed Rahimian Koloor ◽  
Atefeh Karimzadeh ◽  
Noorfaizal Yidris ◽  
Michal Petrů ◽  
Majid Ayatollahi ◽  
...  
Keyword(s):  
Yield Point ◽  
Composite Structures ◽  
Failure Modes ◽  
Initial Slope ◽  
Dissipation Energy ◽  
Fiber Failure ◽  
Damage Initiation ◽  
Frp Composite ◽  
Structural Applications ◽  
Evolution Curve

Composite structures are made of multidirectional (MD) fiber-reinforced polymer (FRP) composite laminates, which fail due to multiple damages in matrix, interface, and fiber constituents at different scales. The yield point of a unidirectional FRP composite is assumed as the lamina strength limit representing the damage initiation phenomena, while yielding of MD composites in structural applications are not quantified due to the complexity of the sequence of damage evolutions in different laminas dependent on their angle and specification. This paper proposes a new method to identify the yield point of MD composite structures based on the evolution of the damage dissipation energy (DDE). Such a characteristic evolution curve is computed using a validated finite element model with a mesoscale damage-based constitutive model that accounts for different matrix and fiber failure modes in angle lamina. The yield point of composite structures is identified to correspond to a 5% increase in the initial slope of the DDE evolution curve. The yield points of three antisymmetric MD FRP composite structures under flexural loading conditions are established based on Hashin unidirectional (UD) criteria and the energy-based criterion. It is shown that the new energy concept provides a significantly larger safe limit of yield for MD composite structures compared to UD criteria, in which the accumulation of energy dissipated due to all damage modes is less than 5% of the fracture energy required for the structural rupture.

FRP Composite Structures

2021 ◽  
Author(s):  
Hota V. S. GangaRao ◽  
Woraphot Prachasaree
Keyword(s):  
Composite Structures ◽  
Frp Composite

Glass Covered Magnetic Micro-Wires Operating in the Domain Wall Nucleation and Propagation Sensing Mode for Stress Detection in FRP Composite Structures

2014 ◽  
Vol 12 (10) ◽  
pp. 1481-1487
Author(s):  
Spiridon Konstantopoulos ◽  
Stelios Potirakis ◽  
Angelos Christopoulos ◽  
Ralf Schledjewski ◽  
Evangelos Hristoforou
Keyword(s):  
Domain Wall ◽  
Composite Structures ◽  
Stress Detection ◽  
Frp Composite
Sign in / Sign up

Export Citation Format

Share Document