Empirical Verification of Localized Rigidity Constitutive Model on Particle Dispersed Composite Material with Plastic Matrix

2000 ◽  
Vol 2000.1 (0) ◽  
pp. 181-182
Author(s):  
Masaaki KOGANEMARU ◽  
Michihiko NAKAGAKI ◽  
Yadong WU ◽  
Ying Jie LIU
Keyword(s):  
Composite Material ◽  
Constitutive Model ◽  
Empirical Verification ◽  
Plastic Matrix

Assessment of Micro-Geometric and Macro-Geometric Parameters after Machining Composite Material with Natural Fibres

2014 ◽  
Vol 616 ◽  
pp. 276-283
Author(s):  
Zuzana Hutyrová ◽  
Imrich Orlovský
Keyword(s):  
Surface Roughness ◽  
Composite Material ◽  
Feed Rate ◽  
Wood Flour ◽  
Cutting Speed ◽  
Geometric Parameters ◽  
Present Problem ◽  
Reinforcement Material ◽  
Roundness Deviation ◽  
Plastic Matrix

This paper present problem of the examination of the parameters of cutting process on the micro-geometric and macro-geometric parameters after the turning of composite material with natural reinforcement (material is combination of two different phases the plastic matrix and wood flour). The article deals with effect of feed rate and cutting speed to roundness deviation and maximum roughness depth. The results were analyzed using device of surface roughness, roundness/cylindricity and digital microscopic camera. From the result, the surface roughness are mostly influenced by feed rate.

The Accurate Prediction Method of Tension Modulus for Nylon Cord/Rubber Composite Material

2014 ◽  
Vol 575 ◽  
pp. 115-120
Author(s):  
Jie Ren ◽  
Jian Lin Zhong
Keyword(s):  
Composite Material ◽  
Numerical Model ◽  
Constitutive Model ◽  
Calculation Method ◽  
Prediction Method ◽  
Accurate Prediction ◽  
Prediction Formula ◽  
Rubber Material ◽  
Rubber Composite ◽  
Equivalent Modulus

To study the change rule of tension modulus for nylon cord/rubber composite material, a accurate prediction method is provided. Firstly, the calculation method for relevant parameters for rubber material Mooney-Rivilin constitutive model is proposed , the amendment formula for cord tension modulus is derived. Secondly, based on composite material micromechanics, the accurate numerical model is built, the equivalent modulus is calculated and compared to the experiment results in reference. Finally, the accurate prediction formula of tension modulus for the nylon cord/rubber composite material is provided, compare the equivalent tension modulus obtained by the prediction formula and the numerical model. The results show that: the method to build the numerical model of nylon/ cord-rubber composite material is correct, the prediction formula of the tension modulus for the nylon cord/rubber composite could predict the tension modulus well.

Machining of Non-Homogeneous Composite Material with Natural Fibers Reinforcement and HDPE Matrix

2013 ◽  
Vol 581 ◽  
pp. 95-99 ◽  
Author(s):  
Zuzana Hutyrová ◽  
Jozef Zajac ◽  
Veronika Fečová
Keyword(s):  
Composite Material ◽  
Glass Fibre ◽  
Renewable Resources ◽  
Natural Fibers ◽  
High Strength ◽  
High Potential ◽  
Low Density ◽  
Low Weight ◽  
Plastic Matrix ◽  
Expanding Population

Depending on expanding population and its increasing purchasing power we are forced to use more and more renewable resources for a production of materials. When compared to other types of fibres, the natural fibres have a lot of advantages: they are affordable (only 1/10 of a glass fibre price), non-abrasive, recyclable, with relatively high strength and rigidity, low density (and low weight in hollow profiles). When combined with plastic matrix the exceptional biomaterial, which is possible to describe as friendly environment, is created. It has high potential to succeed with a final customer. At present, a use of thermoplastic matrices (especially with WPC materials) is preferred. The final subject of this article is to point out considerable disadvantage from a perspective of machining inhomogeneity of the material (in full profiles).

A multi-level damage and creep behaviour of material subjected to high pressure: metal versus composite – A micromechanics approach

2017 ◽  
Vol 233 (3) ◽  
pp. 772-786 ◽  
Author(s):  
VS Kathavate ◽  
DN Pawar ◽  
AS Adkine
Keyword(s):  
High Pressure ◽  
Composite Material ◽  
Constitutive Model ◽  
Creep Behaviour ◽  
Damage Model ◽  
The Past ◽  
Nonlinear Constitutive Model ◽  
Micromechanical Damage ◽  
Multi Level ◽  
Dependent Behaviour

This current study reports on multi-level damage and creep behaviour of metal and composite material under external high pressure using finite element concept. A fatigue damage model with microcracks with improper interface has been portrayed in the present investigation. In addition, the overall elastic properties and damage evaluation are also studied and comparative study of mechanical properties has been outlined. Further thermo-elastic creep response of materials based on Norton’s law is also presented. The results showed that the proposed nonlinear constitutive model and overall elastic damage behaviour of composite material are in agreement. Implemented nonlinear constitutive model is secured by comparing predicted stress–strain curves with experimental data available in the past literature under uniaxial tension. The time-dependent behaviour creep stresses and displacements are studied and plotted. The analysis provides significant new insights of micromechanical damage, creep and collapse behaviour of composite material. For the structural composites, some notable techniques have been developed over the past three decades; review of these techniques is also outlined here in this paper and state of art is established together with insights for upcoming development.

scholarly journals A micro-mechanical constitutive model for heterogeneous rocks with non-associated plastic matrix as implicit standard materials

2021 ◽  
Vol 133 ◽  
pp. 104026
Author(s):  
Lun-Yang Zhao ◽  
Jian-Fu Shao ◽  
Yuan-Ming Lai ◽  
Qi-Zhi Zhu ◽  
Jean-Baptiste Colliat
Keyword(s):  
Constitutive Model ◽  
Heterogeneous Rocks ◽  
Plastic Matrix
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