Fractal Property of Matrix Cracking in GFRP Cross-Ply Laminates
スポンサーリンク
概要
- 論文の詳細を見る
Matrix cracking is the most important damage mechanism in FRP structures because it causes stiffness degradation of structures and becomes the origin of delaminations. In this study, therefore, with specimens of stacking sequence [0/90_4]_s, tension tests were conducted and in situ observations of the matrix cracking in the 90° ply were made by a replica method. As a result, the distribution of the matrix crack positions was experimentally proven to be a fractal distribution of D = 0.45 and was constant at any loading levels. Using this fractal distribution, the stiffness degradation was evaluated based on an imaginary crack density. Based on these results, the fractal distribution of the initial defect size was modeled and experimentally proven to be a fractal distribution of D= 1.6. The model was applied successfully to predict variations of crack density with increasing applied load using damage mechanics.
- 一般社団法人日本機械学会の論文
- 1995-10-15
著者
-
Todoroki A
Department Of Mechanical Sciences And Engineering Tokyo Institute Of Technology
-
Todoroki A
Tokyo Inst. Technol. Tokyo Jpn
-
Todoroki Akira
Department Of Mechanical Engineering And Science Tokyo Institute Of Technology
-
Kobayashi H
Muroran Inst. Technol. Hokkaido Jpn
-
Shimamura Yoshinobu
Graduate Student of Tokyo Institute of Technology
-
Kobayashl Hideo
Department of Mechano-Aerospace Engineering, Tokyo Institute of Technology
関連論文
- Transient and Dynamic Stress Analysis of Functionally Graded Thick Hollow Cylinder Subjected to Thermal Shock Loading Using an Analytical Method
- Fiber-waviness Model in Filament Winding Process
- A Fundamental Study on Static Strength Improvement of CFRP Bolted Joints by Increasing Friction Force
- Unsupervised Structural Damage Diagnosis Based on Change of Response Surface Using Statistical Tool : Application to Damage Detection of Composite Structure
- 114 Bearing Failure Detection of Bolted Composite Joints Using Electric Resistance Change Method
- Structural Health Monitoring : Sensors, Diagnostic Method and System
- Application of Electric Potential Method to Smart Composite Structures for Detecting Delamination
- Electrical Resistance Change of CFRP under a Compression Load
- Electrical Resistance Change of Thick CFRP Laminate for Self-Sensing
- Durability Estimates of Copper Plated Electrodes for Self-sensing CFRP Composites
- Mechanism of Electrical Resistance Change of a Thin CFRP Beam after Delamination Cracking
- Damage Monitoring for Semi-Transparent Composites Using Luminance of EL Backlight
- Detection of Matrix Crack Density of CFRP using an Electrical Potential Change Method with Multiple Probes
- Strain and Damage Monitoring of CFRP Laminates by Means of Electrical Resistance Measurement
- Stacking-Sequence Optimization of Composite Delta Wing to Improve Flutter Limit Using Fractal Branch and Bound Method
- Stacking sequence optimizations using modified global response surface in lamination parameters
- Stacking Sequence Optimizations using Modified Global Response Surface on Lamination Parameters
- Fractal Property of Matrix Cracking in GFRP Cross-Ply Laminates
- Stacking Sequence Optimizations Using Fractal Branch and Bound Method for Laminated Composites
- Electrical Resistance Change of Unidirectional CFRP Due to Applied Load(Advanced Technology of Experimental Mechanics)
- Experimental Cost Reduction for Delamination Monitoring of CFRP Beam Using Electrical Resistance Change with Neural Networks(International Workshop on Smart Materials and Structural Systems, W03 Jointly organized by Material & Processing Division, Materia
- Optimizations of stacking sequence and number of plies for laminated cylinders using GA with intron genes
- Stacking sequence optimizations using GA with zoomed response surface on lamination parameters
- Application of Genetic Algorithms to Stiffness Optimization of Laminated Composite Plates with Stress-Concentrated Open Holes
- Two-Level Optimization of Dimensions and Stacking Sequences for Hat-Stiffened Composite Panel
- Numerical Simulation of Self-Sensing Time Domain Reflectometry for Damage Detection of Carbon Fiber Reinforced Polymer Plate
- Electrical Resistance Reduction of Laminated Carbon Fiber Reinforced Polymer by Dent Made by Indentation without Cracking
- Damage and Fault Diagnosis of In-service Structure via Statistical Comparison of Relation between Sensor measurements (Damage Diagnosis of in-service Structure under High Noise Environment using Multiple Reference Data):(Damage Diagnosis of in-service St
- Damage Monitoring of CFRP Plate Using Self-Sensing TDR Method