Felix Dillenberger

On the anisotropic plastic behaviour of short fibre reinforced thermoplastics and its description by phenomenological material modelling (eBook, PDF)

• Format: PDF

Produktbeschreibung

This work introduces a material modelling approach for explicit finite element simulations of injection moulded short fibre reinforced thermoplastics. The material model considers linear-elastic behaviour and non-linear orthotropic stress-state dependent viscoplastic deformation for arbitrary fibre distributions. Regarding elasticity and the initial yield surface, a micro-mechanical Mori-Tanaka based approach is applied. On the matrix level an isotropic quadratic yield surface is introduced which is transferred into a Tsai-Wu yield surface on the composite level. An analytical expression for non-linear hardening and a simplified consideration of strain rate dependency is presented. The constitutive equations were verified with the experiments of a self-compounded PPGF30 material regarding regarding tension, compression and shear at different orientation distributions.

---

Dieser Download kann aus rechtlichen Gründen nur mit Rechnungsadresse in A, B, BG, CY, CZ, D, DK, EW, E, FIN, F, GR, HR, H, IRL, I, LT, L, LR, M, NL, PL, P, R, S, SLO, SK ausgeliefert werden.

Produktdetails

• Verlag: Springer Fachmedien Wiesbaden
• Seitenzahl: 227
• Erscheinungstermin: 21. Oktober 2019
• Englisch
• ISBN-13: 9783658281991
• Artikelnr.: 58011804

Autorenporträt

Dr.-Ing. Felix Dillenberger is a mechanical engineer whose research focusses on the characterisation of the mechanical behaviour of thermoplastic plastics and their modelling in finite element simulations.

Inhaltsangabe

Glossaries.- Motivation and Outline.- Injection Moulded Short Fibre Reinforced Thermoplastics.- Polymeric Matrix Materials.- Reinforcement Fibres.- Composite Properties.- Injection Moulding.- Determination of Fibre Distributions.- State of the Art of SFRP Material Modelling.- Mechanical Basics.- Kinematics.- Stress.- Linear Elasticity.- Yield Condition and Plastic Potential.- Limit Criteria.- Damage.- Rate Dependency.- Material Characterisation.- Choice of Material.- Coordinate System Definition.- Experimental Set-up.- Experimental Results.- Discussion of Temperature Effects.- Material Modelling.- Overview.- Modelling of Linear Elasticity.- Modelling of Plastic Behaviour.- Modelling of Damage and Failure.- Numerical Implementation.- Verification.- Verification of Linear Elastic Response.- Verification of Plastic Response.- Numerical Verification of the Material Model.- Considerations for Engineering Practice 1857.- Determination of the Elastic Stiffness Matrix.- Determination ofthe Limit of Linear Deformation.- Determination of Plastic Deformation.- Consideration of Damage and Failure.- Summary and Outlook.