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Approach to model the material behavior of a wooden layered composite in LS-Dyna

Piazza, Giovanni and Käse, David and Beeh, Elmar (2017) Approach to model the material behavior of a wooden layered composite in LS-Dyna. MMiFEM 2017, Herrsching am Ammersee, Deutschland.

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The increased public interest in green technology combined with new environmental policies results in the need of vehicles with a reduced global environmental impact. One technological option can be the usage of wood as biomaterial in order to reduce the carbon footprint. Due to excellent specific strength and stiffness, wooden layered composites (WLCs) may replace some structural or semi-structural parts of a vehicle currently made of steel alloys, aluminum alloys or plastics. Nowadays, WLCs, that replace classical materials, are not yet considered as load-bearing structural components and are therefore not included in the design and the simulation process. The challenges in the usage of wood or wooden layered composites in structural parts are currently investigated and two major issues have been identified yet - the wide scatter of characteristic values of wooden materials and the missing material model. This talk presents an approach to address the issue of a missing material model. Desired properties, the new material model should simulate, are identified firstly and prioritized secondly. An attempt is made to transfer knowledge from the material behavior and from the simulation of carbon fiber reinforced polymers (CFRP) in LS-Dyna to a WLC. Similarities and differences between the two material classes are identified for this purpose and an approach to model the material behavior is made based on the state of the art - on literature data as well as simulation methods. The development of a fully qualified material model will contribute to the structural application of wooden layered composites in modern structures.

Item URL in elib:https://elib.dlr.de/122648/
Document Type:Conference or Workshop Item (Speech)
Title:Approach to model the material behavior of a wooden layered composite in LS-Dyna
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:11 September 2017
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Biomaterial Wood Composites Simulation
Event Title:MMiFEM 2017
Event Location:Herrsching am Ammersee, Deutschland
Event Type:Workshop
Organizer:11.-12. Sep. 2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - NGC Fahrzeugstruktur (old)
Location: Stuttgart
Institutes and Institutions:Institute of Vehicle Concepts > Material and Process Applications for Road and Rail Vehicles
Deposited By: Piazza, Giovanni
Deposited On:15 Nov 2018 15:40
Last Modified:31 Jul 2019 20:20

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