Energy Absorption Performances and Fracture Mechanisms of Braided Pultruded Composite Rods

2021 ◽  
pp. 83-87
Author(s):  
Ryuji InaI ◽  
Hiroshi Saito ◽  
Koji Kameo ◽  
Tadashi Uozumi ◽  
Masaharu Iwamoto ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Fracture Mechanisms

Crashing Behavior of Braided Composites

2001 ◽  
Author(s):  
Hiroyuki Hamada
Keyword(s):  
Energy Absorption ◽  
Fracture Morphology ◽  
High Energy ◽  
Constant Load ◽  
Fracture Mechanisms ◽  
Metallic Materials ◽  
Braided Composites ◽  
Fiber Fracture ◽  
Absorption Properties ◽  
High Energy Absorption

Abstract FRP exhibits not only the excellent strength to weight than conventional metallic materials, but also high energy absorption properties. Therefore FRP would be applied to structural components for various vehicles recently. Particularly, braided composites are expected to utilize for safety components, because they show the fracture mode called progressive crushing, which proceeds under constant load. Energy absorption with progressive crushing was generated by combination of fiber fracture, delamination, crack, etc. In this paper, the crushing properties, especially fracture mechanisms of FRP rods were investigated. To discuss the fracture morphology, microscopic observations were examined.

scholarly journals Influence of the Interface on the Energy Absorption Mechanisms of CMCs

1998 ◽  
Author(s):  
Iñigo Puente ◽  
Reyes Elizalde ◽  
José M. Sánchez ◽  
José M. Martínez-Esnaola ◽  
Antonio Martín-Meizoso ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Strain Energy ◽  
Room Temperature ◽  
Ceramic Matrix Composite ◽  
Tensile Tests ◽  
Fracture Mechanisms ◽  
Frictional Stress ◽  
Permanent Strain ◽  
Sic Ceramic ◽  
The Matrix

An analysis of energy absorption in a tensile test of a CAS/SIC ceramic matrix composite is presented. The analysis is based on the principal parameters related to the strain and fracture mechanisms, as are the pullout length and the matrix crack spacing. The micro-mechanical properties of the material, the interfacial debonding, the frictional stress along the interface and the debonding energy are the core of the analysis. Using these parameters, the energy absorbed during the test, and the elastic energy released after fracture are calculated. The results are compared with those obtained in twenty-one tensile tests at room temperature, in which the strain energy density has been calculated and the permanent strain has been measured.

Experimental study of the strength and durability of metal-composite high-pressure tanks

2019 ◽  
Vol 85 (1(I)) ◽  
pp. 49-56 ◽  
Author(s):  
A. M. Lepikhin ◽  
V. V. Moskvichev ◽  
A. E. Burov ◽  
E. V. Aniskovich ◽  
A. P. Cherniaev ◽  
...  
Keyword(s):  
High Pressure ◽  
Strain State ◽  
Full Scale ◽  
Fracture Mechanisms ◽  
Metal Composite ◽  
Test Results ◽  
Stress Strain ◽  
Pneumatic Pressure ◽  
Stress Strain State ◽  
Composite Tank

The results of unique experimental studies of the strength and service life of a metal-composite high-pressure tank are presented. The goal of the study is to analyze the fracture mechanisms and evaluate the strength characteristics of the structure. The methodology included tests of full-scale samples of the tank for durability under short-term static, long-term static and cyclic loading with internal pneumatic pressure. Generalized test results and data of visual measurements, instrumental and acoustic-emission control of deformation processes, accumulation of damages and destruction of full-scale tank samples are presented. Analysis of the strength and stiffness of the structure exposed to internal pneumatic pressure is presented. The types of limiting states of the tanks have been established experimentally. Change in the stress-strain state of the tank under cyclic and prolonged static loading is considered. Specific features of the mechanisms of destruction of a metal-composite tank are determined taking into account the role of strain of the metal liner. The calculated and experimental estimates of the energy potential of destruction and the size of the area affected upon destruction of the tank are presented. Analysis of test results showed that the tank has high strength and resource characteristics that meet the requirements of the design documentation. The results of the experiments are in good agreement with the results of numerical calculations and analysis of the stress-strain state and mechanisms of destruction of the metal-composite tank.

Energy Absorption at High Strain Rate of Magnesium Alloy AZ31B

2020 ◽  
Vol 12 (05) ◽  
Author(s):  
M. M. Mubasyir ◽  
◽  
M. F. Abdullah ◽  
K. Z. Ku Ahmad ◽  
R. N. R. Othman ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
Energy Absorption ◽  
High Strain ◽  
Magnesium Alloy Az31b
Sign in / Sign up

Export Citation Format

Share Document